Procedures For Drill String Design Engineering Essay

Procedures For Drill String Design Engineering Essay This chapter presents general procedures for drill string design. The design aspects of critical importance and factors controlling drill pipe selection are highlighted. The term Drill Stem is used to refer to the combination of tubulars and accessories that serve as a connection between the rig and the drill bit (RGU lecture slides). It consists mainly of Drill Pipe, Drill Collars (DC) and Heavy Weight Drill Pipes (HWDP) and accessories including bit subs, top drive subs, stabilisers, jars, reamers etc. Drill stem is often used interchangeably with the term Drill String which actually refers to the joints of drill pipe in the drill stem. For the purpose of this report, Drill String will be used to refer to the string of drill pipes that together with drill collars and heavy weight drill pipe make up the drill stem see fig 3.1. 3.1 DRILL STEM COMPONENT DESCRIPTION 3.1.1 Drill Pipe The drill pipes are seamless pipes usually made from different steel grades to different diameters, weights and lengths. They are used to transfer rotary torque and drilling fluid from the rig to the bottom hole assembly (drill collars plus accessories) and drill bit. Each drill pipe is referred to as a joint, with each joint consisting of a pipe body and two connections (see fig 3.2). Drill pipe lengths vary, and these different lengths are classified as ranges, the available or more common ranges include: Range 1: 18 22 ft Range 2: 27 30ft Range 3: 38 40ft. Drill Stem. Fig 3.1: Drill Stem with components. (Heriott Watt University lecture Notes: Drilling Engineering) Drill pipes are also manufactured in different sizes and weights which reflects the wall thickness of the drill pipe. Some common sizes and their corresponding weights include 31/2 in. 13.30 lb/ft and 4 1/2in. 16.60 lb/ft. The indicated weight is the nominal weight in air (pipe body weight excluding tool joints) of the drill pipe. A complete listing of API recognised drill pipe sizes, weight and grades are published in the API RP 7G. The drill pipe grade is an indication of the minimum yield strength of the drill pipe which controls the burst, collapse and tensile load capacity of the drill pipe. The common drill pipe grades are presented in the table below Grade Yield Strength, psi Letter Designation Alternate Designation D D-55 55,000 E E-75 75,000 X X-95 95,000 G G-105 105,000 S S-135 135,000 Table 3.1: Drill Pipe Grades. Drill pipes are often used to drill more than one well, therefore in most cases the drill pipe would be in a worn condition resulting in its wall thickness being less than it was when the drill pipe was brand new. In order to identify and differentiate drill pipes, they are grouped into classes. The different classes are an indication of the degree of wear on the wall thickness of the drill pipe. The classes can be summarised as follows according to API standards: New: Never been used, with wall thickness when to 12.5% below nominal. Premium: Uniform wear with minimum wall thickness of 80%. Class 2: Allows drill pipe with a minimum wall thickness of 70%. It is essential that the drill pipe class be identified in drill pipe use or design, since the extent of wear affects the drill pipe properties and strength. When specifying a particular joint of drill pipe, the class, grade, size, weight and range have to be identified, the specification could therefore appear thus: 5 19.5 lb/ft Grade S Range 2 Fig 3.2: Parts of Drill pipe. (Handbook for Petroleum and Natural gas) 3.1.2 Tool Joints Tools joints are screw type connections welded at the ends of each joint of a drillpipe. The tool joints have coarse tapered threads and sealing shoulders designed to withstand the weight of the drill string when it is suspended in the slips. Tool joints are of two kinds; the pin (male section) and the box (female section). Each drill pipe has a pin attached to one end and a box attached at the other end. This makes it possible for the pin of one joint of drill pipe to be stabbed into box of a previous drill pipe. There are several kinds of tool joints widely used: Joint Type Diagram Description Internal Upset (IU) Tool joint is less than the pipe. Tool joint OD is approximately the same as the pipe. Internal Flush (IF) Tool joints ID is approximately the same as the pipe. The OD is upset. Internal / External Upset (IEU) Tool joint is larger than the pipe such that the tool joint ID is less than the drill pipe. The tool joint OD is larger than the drill pipe. Table 3.2 Types of tool joints. (The Robert Gordon University Lecture Notes: Drill String Design) 3.1.3 Drill Collars Drill collars are thick walled tubes made from steel. They are normally the predominant part of the bottom hole assembly (BHA) which provides Weight on Bit (WOB). Due to the large wall thickness of the drill collars, the connection threads could be machined directly to the body of the tube, thereby eliminating the need for tool joints (see fig 3.3). Drill collars are manufactured in different sizes and shapes including round, square, triangular and spiral grooved. The slick and spiral grooved drill collars are the most common shapes used currently in the industry. There are drill collars made from non-magnetic steel used to isolate directional survey instruments from magnetic interference arising from other drill stem components. The steel grade used in the manufacture of drill collars can be much lower than those used in drill pipes since they are thick walled. Functions Provide weight on bit Provide stiffness for BHA to maintain directional control and minimise bit stability problems. Provide strength to function in compression and prevent buckling of drill pipes. Fig 3.3: Carbon Steel Drill Pipes. 3.1.4 Heavy Weight Drill Pipe Heavy weight drill pipes (HWDP) are often manufactured by machining down drill collars See fig 3.4. They usually have greater wall thickness than regular drill pipe. HWDP are used to provide a gradual cross over when making transition between drill collars and drill pipes to minimise stress concentration at the base of the drill pipe. These stress concentrations often result from: Difference in stiffness due to the difference in cross-sectional area between the drill collar and drill pipe. Bit bouncing arising from rotation and cutting action of the bit. HWDP can be used in either compressive or tensile service. In vertical wellbores it is used for transition and in highly deviated wells, it used in compression to provide weight on bit. Fig 3.4: Heavy Weight Drill Pipe. (Heriott Watt University lecture Notes: Drilling Engineering) 3.1.5 Accessories Drill Stem accessories include: Stabilisers: these are made of a length of pipe with blades on the external surface. The blades are spiral or straight, fixed or mounted on rubber sleeves to allow the drill string rotate inside. Functions of the stabiliser include: Stabilise the drill collars to reduce buckling and bending Ensure uniform loading of tricone bits to reduce wobbling and increase bit life. To provide necessary wall contact and stiffness behind the bit to induce positive side force to build angle when drilling deviated wells. Reamers: used in the BHA to enlarge the well bore diameter and ream out doglegs, key seats, ledges. Drilling Jars: incorporated in the BHA to deliver a sharp blow and assist in freeing the drill string should it become stuck. 3.2 DRILL STRING DESIGN The drill string design is carried out in order to establish the most efficient combination of drill pipe size, weight, and grades to fulfil the drilling objectives of any particular hole section at the lowest cost within acceptable safety standards. In order to design a drill string to be used in a particular hole section, the following parameters need to be established: Hole section depth Hole section size Expected mud weight Desired safety factors in tension and overpull. Desired safety factor in collapse Length of drill collars required to provide desired WOB including OD, ID and weight per foot. Drill pipe sizes and inspection class The drill string design has to meet the following requirement: The working loads (tension, collapse, burst) on the drill string must not exceed the rated load capacity of each of the drill pipes. The drill collars should be of sufficient length to provide all required WOB to prevent buckling loads on the drill pipe. The drill pipes used have to ensure the availability of sufficient fluid flow rate at the drill bit for hole cleaning and good rate of penetration. 3.2.1 Design Safety Factors Design safety factors are applied to calculated working loads to account for any unexpected service load on the drill string. They are used to represent any features that are not considered in the load calculations e.g. temperature and corrosion, thus ensuring that service loads do not exceed the load capacity of the drill pipe. Design safety factor values are often selected based on experience from operating within a particular area, the extent of uncertainty in the operating conditions e.g. when operating in HPHT conditions, a larger safety factor is applied than when operating in less harsh conditions. Some commonly used design safety values are illustrated in the table below Load Design Safety Factor Value Tension 1.1 1.3 Margin of overpull (MOP) 50,000 100,000. MOP of 400,000 have been used in ultra deep wells Weight on Bit 1.15 or 85% of available Weight on bit to ensure neutral point is 85% of drill collar string length measures from the bottom (API RP 7G) Torsion 1.0 (based on the lesser of the pipe body or tool joint strength) Collapse 1.1 1.15 Burst 1.2 3.2.2 Drill Collar Selection The drill collars are selected with the aim of ensuring that they provide sufficient WOB without buckling or putting the lower section of the drill string in compression. 3.2.2.1 Size selection Lateral movement of the drill bit is controlled by the diameter of the drill collar directly behind it. Therefore the size/diameter of the drill collar closest to the bit will be dependent on the required effective minimum hole diameter and the relationship can be given as When two BHA components of different cross-sectional areas are to be made up, it is essential that the bending resistance ratio (BRR) be evaluated. This is important because BHA components have tensile and compressive forces acting on them when they are bent in the well bore. These forces cause stress at connections and any location where there is a change in cross-sectional area. Therefore it is important to ensure that these stresses are within acceptable ranges. The bending resistance (BR) of a drill string component is dependent on its section modulus which is given as Z = section modulus, in3 I = second moment of area, in4 OD = outside diameter, in ID = inside diameter, in The BRR is used to express any change in BR and can be calculated using BRR should generally be below 5.5 and in severe drilling conditions, below 3.5. 3.2.2.2 Connections When selecting connections to be used with drill collars, it is essential to check that the BRR of the pin and box indicates a balanced connection. The BRR for drill collar connection is calculated as the section modulus of the box divided by the section modulus of the pin. The API RP 7G contains tables that can be used to determine BRR for any box and pin OD. BRRs of 2.5 have given balanced connections (RGU Lecture notes, 2005). 3.2.2.3 Weight on Bit The maximum weight on bit required is normally a function of the bit size and type. The rule of thumb is: Maximum WOB of 2000lbf per inch of bit diameter when using Polycrsyalline Diamond Compact bits (PDC) and mud motors. Maximum WOB of 5000lbf per inch of bit diameter when using tricone bits. Other factors controlling WOB include inclination, hole size and buckling. In vertical wellbores the length of drill collars required to provide a specified weight on bit is given by LDC = Length of Drill Collars, ft WOB = Weight of Bit, lb DFBHA = Safety factor to keep neutral point in drill collars. WDC = Weight per foot of Drill Collars, lb/ft Kb = Buoyancy Factor. The neutral point as described by (Mian, 1991) referring to Lubinksi, is the point that divides the drill stem into two portions, with the section above the neutral point in tension and that below in compression. Therefore in order to ensure that the entire length of drill pipes remain in tension, the neutral point of the drill stem has to be maintained within the drill collars. According to the API RP 7G, the height of the neutral point measured from the bottom of the drill collars will be 85% of the total length of drill collars used, with 85% being the safety factor. In inclined wellbores, the angle of inclination has to be taken into consideration when calculating the maximum WOB that can be applied without buckling the drill pipe. This is because although the WOB is applied at the inclination of the wellbore, this weight acts vertically, thus reducing the available weight at the bit. Therefore to allow for this reduction, the buoyed weight of the BHA would be reduced by the cosine of the well inclination, thus WOB in inclined holes is calculated with the formula All parameters remain as defined in equation 5; ÃŽÂ ¸ is the angle of inclination of the well. As a result of the vertically acting weight of the BHA, the drill string tends to lie on the low side of the hole and is supported to some extent by the wall of the well bore. Therefore the pipes above the neutral point could only buckle if the compressive forces in the drill string exceed a critical amount. This critical buckling force is calculated as follows Fcrit = critical buckling force, lb ODHWDP = outside diameter of HWDP, in. ODtj = maximum outside diameter of pipe, in. IDHWDP = inside diameter of HWDP, in. Kb = buoyancy factor. Dhole = diameter of hole, in. ÃŽËÅ" = hole inclination, degrees. Since HWDP are sometimes used to apply WOB in inclined wells, and drill pipes are sometimes used in compression, the critical buckling force is calculated for both HWDP and drill pipes. 3.2.3 Drill Pipe Selection Factors to be considered for drill pipe selection include: Maximum allowable working loads in tension, collapse, burst, and torsion. Maximum allowable dogleg severity at any depth in order to avoid fatigue damage in the drill pipe. Combined loads on the drill pipe. The loads considered when selecting drill pipes to be used in the drill string is dependent on the well depth, well bore geometry and hole section objectives. In shallower vertical wells, collapse and tension are of more importance than burst or torsion. Burst is normally not considered in most designs since the worst case for a burst load on the drill pipe would occur when pressuring the drillstring with a blocked bit nozzle, even with this condition, the burst resistance of the drill pipe is likely to be exceeded. Torsion is of less importance in vertical well bores because drag forces are at minimal amounts unlike in highly deviated wells. The dogleg severity of the well for both vertical and deviated wells is important because of increased fatigue in the drill pipe when it is rotated in the curved sections of the wellbore. A graphical method is recommended for drill pipe selection, with the loads plotted on a load versus depth graph. This makes it possible for loads at particular points on the drill string to be easily visualised, and any sections of the drill pipe that do not meet the load requirements are easily identified and redesigned. 3.2.3.1 Collapse Drill pipes are sometimes exposed to external pressures which exceed its internal pressures, thereby inducing a collapse load on the drill pipe. The worst scenario for collapse in a drill pipe is during drill stem tests when they are run completely empty into the wellbore. The collapse loads are highest at the bottom joint of the drill pipes, as a result, the collapse load would normally control the drill pipe grade to be used at the bottom of the drill string. The API specified collapse resistance for different sizes and grades of drill pipe assuming either elastic, plastic or transition collapse depending on their diameter to wall thickness ratio have been calculated and are published in the API RP 7G with the relevant formulae. The maximum collapse pressure on the drill pipe when it is completely empty can be calculated as follows: Pc = collapse pressure, psi MW = mud weight, ppg TVD = true vertical depth at which Pc acts, ft. On some occasions, the mud weight outside the pipe varies from that inside the pipe, also the fluid levels inside and outside the pipe may also vary. This situation could also induce collapse loads. The collapse loads induced by this scenario can be calculated thus L = Fluid depth outside the drill pipe, ft MW = Mud weight outside the drill pipe, ppg Y = fluid depth inside drill pipe, ft MW = Mud weight inside drill pipe, ppg. The value for Pc is then plotted on the collapse load graph as the collapse load line see fig 3.5. It is recommended practice to apply a design safety factor to the collapse load calculated from equations 8 or 9 (depending on expected scenarios) in order to account for unexpected additional loads as wells as unknown variables. The value of the design factor is often between 1.1 1.5 for class 2 drill pipes. According to (Adams, 1985) the design factor should be 1.3 to account for the fact that new drill pipes are often not used for drill stem tests. The value of the collapse load multiplied by the collapse design factor is plotted on the collapse load graph as the design line, this is then used to select an appropriate grade and weight of drill pipe to fulfil these load conditions. Fig 3.5: Sample Collapse load graph. 3.2.3.2 Tension Load The tensile load capacity of the drill string should be evaluated to ensure there is enough tensile strength in the topmost joint of each size, weight, grade and class of to support the weight of the drill string submerged in the wellbore, hence the need to include buoyancy in the calculations. There has to also be enough reserve tensile strength to pull the drill string out of the well if the pipe gets stuck. The stabiliser and bit weight can be neglected when calculating the drillstring weight. In a vertical wellbore, the forces acting on the drill string are tension from its self weight and the hydrostatic pressure from the fluid in the wellbore. The hydrostatic pressure in the wellbore exerts an upward force on the cross sectional area of the drill string, which is commonly referred to as buoyancy. Therefore the resulting tensile load on the drill string attached to drill collars, taking account of buoyancy is calculated as: FTEN = resultant tensile load on drill string, lb LDP = length of drill pipe, ft LDC = length of drill collars, ft WTDP = air weight of drill pipe, lb/ft WTDC = air weight of drill collars, lb/ft MW = Mud weight, ppg. ADC = Cross sectional area of drill collars, in2 FTEN is plotted on the tension load graph as the tensile load line. The tensile strength values for different sizes, grades and inspection classes of drill pipes are contained in the API RP 7G, and can be calculated from the equation: Fyield = minimum tensile strength, lb Ym = specified minimum yield stress, psi A = cross section area, in2 Fyield is plotted as the minimum tensile strength line on the tension load graph. However, these values (Fyield) are theoretical values based on minimum areas, wall thickness and yield strength of the drill pipes. Therefore, these values only give an indication of the stress at which a certain total deformation would occur and not the specific point at which permanent deformation of the material begins. If a pipe is loaded to the minimum tensile strength calculated from equation 11, there is the possibility that some permanent stretch may occur, thereby making it difficult to keep the pipe straight in the wellbore. In order to eliminate the possibility of this occurrence, 90% of the minimum tensile strength as recommended by the API (American Petroleum Institute), should be used as the maximum allowable tensile load on the drill pipe, i.e Fdesign = maximum allowable tensile load 0.9 = a constant relating proportional limit to yield strength. Fdesign is plotted on the tension load graph as the maximum allowable tensile load line. As with the collapse load, a design factor would be applied to the tensile loads to account for dynamic loads in the drill pipe which occur when the slips are set, as well as prevent the occurrence of pipe parting close to the surface. The product of FTEN and the design factor is plotted as the tension design load line in the tension load graph see fig 3.6. Margin Of Overpull A margin for overpull is added to the tension load to ensure there is sufficient tensile strength in the drill pipe when it is pulled in the event of a stuck pipe. This margin is normally 50,000 100,000lb, but in deeper wells margins of overpull have reached 300,000lb. The value obtained after adding the margin of overpull is also plotted on the tension load graph see fig 3.6. The difference between the calculated tensile load at any point in the drillstring (FTEN) and the maximum allowable tension load would also represent the available overpull. This value represents available tensile strength of the drill pipe to withstand any extra forces applied to the drill string when trying to release it from a stuck pipe situation. FTEN and Fa can also be expressed as a safety factor This safety factor is an indication of how much the selected drill pipe will be able to withstand expected service loads. Due to uncertainty with actual service loads and conditions, a safety factor greater than 1 is always required. Slip Crush Slip crushing is generally not a problem if the slips are properly maintained. However, it is necessary to apply a safety factor for slip crushing when designing the drill string. This helps account for the hoop stress (SH) caused by the slips and the tensile stress (ST) caused by the weight of the drill string suspended in the slips. This relationship between SH and ST can be represented by the following equation SH = hoop stress, psi ST = tensile stress, psi D = outside diameter of the pipe, in. K = lateral load factor on slips, Ls = length of slips, in. = slip taper usually 9 ° 27 45 z = arctan ÃŽÂ ¼ ÃŽÂ ¼ = coefficient of friction, (approximately 0.08) The calculated tensile load is multiplied by the slip crush factor () to obtain the equivalent tensile load from slip crushing: Ts = tension from slip crushing, lb TL = tension load in drill string, lb SH / ST = slip crush factor. Ts is also plotted on the tension load graph as the slip crush design line. Fig 3.6: Sample Tension load graph The general step-by-step procedure for drill pipe selection using the graphical method is given as 1. Calculate the expected collapse load on drill pipe and apply the collapse design safety factor to derive the design load. Use the result to select weight and grade of drill pipe that satisfy collapse conditions. Plot expected collapse load and design load on a pressure vs. depth graph. 2. Calculate maximum allowable tensile load for the drill pipe selected in (1) above. Also calculate tension load on the drill string including buoyancy effects. Plot the tension load, specified minimum yield strength, and maximum allowable tensile load values on axial load vs. depth graph. 3. Apply tension design factor, margin of overpull, and slip crush factor to the calculated tension load and plot the individual results on the axial load vs. depth graph. Of the three factors applied to the tension load, the one resulting in the highest value is selected as the worst case for tensile loads. 4. Inspect graph and re-design any sections not meeting the load requirements. When designing a tapered drill string, the maximum length of a particular size, weight, grade and class of drill pipes that can be used to drill the selected hole section with specified WOB can be calculated as: All parameters remain as defined in equation 10 and 11. Note that equation 16 is only used when the MOP design line is the worst case scenario for tensile loads. When slip crushing is the worst case, the formula below is used SF = safety factor for slip crushing. The lightest available drill pipe grade should be used first in order to ensure that that the heavier grades are used upper section of the drill string where tensile loads are the highest. 3.2.4 Dog Leg Severity Fatigue damage is the most common type of drill pipe failure. It is known to be caused by cyclic bending loads induced in a drill pipe when it is rotated in the curved sections of the wellbore. The rotation of the drill pipe in the curved hole sections induce stresses in the outer wall of the drill pipe by stretching it and increasing its tensile loads. Fatigue damage from doglegs tends to occur when the angle exceeds a critical value. This critical value can be calculated as: C = maximum permissible dog leg severity, deg/100ft E = Youngs modulus, psi (30 x 106 for steel, 10.5 X 106 for aluminium) D = Drill pipe outer diameter, in. L = half the distance between tool joints, (180 in, for range 2 pipe) T = tension below the dogleg, lb à Ã†â€™b = maximum permissible bending stress, psi. I = drill pipe second moment of area, = à Ã†â€™b, is calculated from the buoyant tensile stress (à Ã†â€™t) and is dependent on the grade of the pipe. à Ã†â€™t = T/A, where T is defined in equation 19, and A is the cross sectional area of the pipe body in in2. For grade E pipe, The results from equation 20 are valid for à Ã†â€™t values up to 67,000psi. For grade S pipe, The results from equation 21 are valid for à Ã†â€™t values up to 133,400psi. It is recommended that an allowable dogleg severity (DLS) versus depth chart be plotted for every hole section with a particular drill string design since DLS changes with depth. The chart is plotted with the DLS on the x-axis and depth on the y-axis (see fig 3.7). When DLS lies to the left of the line or below the curve, the drill pipe is in safe operating conditions, and when it falls above or to the right of the curve, it is in unsafe conditions. Fig 3.7: Allowable Dogleg Severity Chart. (Mian, 1991) 3.2.5 Torsion Drill pipe torsional yield strength is important when planning deviated wells and ultra deep wells. In deviated wells, increased drag forces acting on the drill string from its interaction with the wellbore increase torsional loads on the drill pipe. In deeper wells, it is important in stuck pipe situations, in order to know the maximum torque that can be applied to the drill string. The pipe body torsional yield strength when subjected to torque alone can be calculated from the equation: Q = minimum torsional yield strength, ft lb J = polar second moment of area, à Ã¢â€š ¬/32 (D4 d4) D = pipe OD in, d = pipe ID in. Ym = minimum yield strength, psi. 3.2.6 Combined Loads On The Drill String Collapse and Tension The collapse resistance of the drill pipe is often reduced when the drill pipe is exposed to both tension and collapse loads. This happens because tensile loads stretch the drill pipe thereby affecting its D/t (diameter -wall thickness ratio) which controls the collapse resistance of the drill pipe. In ultra deep wells, the effect of combined collapse and tension is experienced when function testing the Blow out Preventers (BOP). It is becoming common practice in ultradeep drilling to equip BOPs with test rams in order to enable the BOP be tested without setting plugs in the well head. This is done to save tripping time due to extreme well depths. An example given by (Chatar, 2010), using 65/8in 27.70lb/ft drill pipe showed that with 65/8in drill pipe having 860kips of maximum allowable tensile loads, at half of this load, the drill string is only capable of withstanding 4,500psi collapse loads, which is often not sufficient for ultradeep drilling BOPs. The corrected collapse resistance of drill pipes under tension can be calculated using the formula Where R represents the percentage of the collapse resistance left when the drill pipe is under tension, therefore in equation 25, the value for R is used to multiply the normal plastic collapse resistance of the pipe to give the collapse resistance under tension. R can also be determined graphically with the following steps 1. Calculate Z using equation 24 2. Enter the ellipse for biaxial stress (fig 3.8) on the horizontal axis with the value for Z and draw a vertical line to the ellipse curve. 3. Draw a horizontal line from the vertical line drawn in (2) above to the vertical axis and read off the value. 4. Use the value from (5) above to multiply the collapse resistance to get the corrected collapse resistance with tension. Fig 3.8: Ellipse of Biaxial yield Strength: Effect of tensile loading om collapse resistance. (RGU Lecture notes: Casing design) Combined tension and torsion The torsional yield strength of a drill pipe is significantly reduced when the pipe is under tension loads. The torsional yield strength of the drill pipe under tension can be calculated with the equation Q = minimum torsional yield strength under tension, ft lb J = polar second moment of area. D = pipe OD in, d= pipe ID in. Ym = minimum yield strength, psi P = total load in tension, lb A = cross sectional area, in2 3.2.7 Tool Joint Performance The makeup torque to be applied to the tool joints when connecting drill pipes is calculated as follows ID = inside diameter, in. OD = outside diameter, in. Values for X, M, B and Q for standard connections are presented in the table below Type of Connection X

General systems and operations design Essay

The human-system design should be least complicated and easy to operate and maintain. Less complications and operational requirements would mean minimum training requirements and workload for the people and thus, less error potential. Hardware operations and computer procedures should also be standardized so that similar operations would require similar hardware and similar applications would only require similar uses and procedures. Operations should only be standardized and implemented to minimize the number of required tools as well as human errors from improper training and minimum skill. Also, the minimization of maintenance requirements and the standardization of procedures and operations should be done so that any person involved in the exploration would at least have an idea on the operations which is especially necessary in cases of accidents when a company in space becomes incapable of operation (Man-Systems Integration Standards, 2006). Changes in Anthropometry As people travels farther from Earth, there is the loss of gravitational pull. This loss, together with the changes in environment exert great effects both in the anthropometry and biology of humans and thus requires extensive consideration especially in designing workstations. In particular, the human body size and posture, the surface area, the movement and volume as well as the mass considerably change with the absence of gravity (Vogel, 1976; Man-Systems Integration Standards, 2006). The height of a person generally increases for both short and long-term missions (Sinha, 2002; Vogel, 1976). This is caused by spine lengthening which can vary from 0.5 inch to about 3% of the baseline height prior to the mission. The fluid shifts caused by gravity cause changes in the chest, waist and limb-circumferences, usually a decrease (Man-Systems Integration Standards, 2006). Because weight is a function of gravitational force, the weight of a person decreases from 3-4%, most of which because of water, and loss of lean body mass as well as fat. Metabolic changes that happen further throughout the mission also cause further weight loss while the center of the weight becomes the head (Man-Systems Integration Standards, 2006). Pre-operation anthropometry does have an effect on how much increase or decrease will happen with the decrease in gravitational pull. This means that in general, sex and race could also have an effect on the amount of changes that would happen as a result of the decrease in gravity. People from the West are usually taller compared to their Eastern, Asian counterparts. In addition, males are generally taller compared to the females of the same race (â€Å"Man-Systems Integration Standards,† n. d. ). The anthropometric data are usually used in the design of equipment. The equipment to be used must be able to fit to any user regardless of size. This is done by designing a one-size-fits-all principle, to accommodate all possible users. This is especially applicable to the design of chairs and the dimensions of the window. Equipment sizes can also be tailored to fit a specific user so long as he or she would be the only user. Objects that must be reached such as buttons and switches must be adjusted based on the reach of the shortest person. In addition, the fact that the spine lengthens while in space would affect the placement of reachable objects. Because the spine lengthens, there would be an increased or easier overhead reach while the downward reach becomes more difficult because of decreased assistance by gravity (Man-Systems Integration Standards, 2006). The anthropometric data can also be used in the design of clothing. Since height increases generally happen as a result of the increase in spin length while in space, the designers must tailor the space suits to accommodate such changes (Man-Systems Integration Standards, 2006). In addition to gravity, the actual tasks that must be performed in space are considered in the design of equipment. To exemplify, if the task involves great precision, continued operation and the use of two hands, the task should be as close as possible to the operator. For tasks that require the use of special suits, design reach dimensions are generally reduced (Man-Systems Integration Standards, 2006). Changes in Work Capacity and Biology The lack of gravity also forces design changes particularly in objects that require pushing, and pulling. Because there is lack in gravity, human force is basically reduced. Diminished musculoskeletal strength and reduced cardiac capacity are effects of lack of gravity and can affect work performance and capacity (Miller, n. d. ). It follows then that in functions that require force such as pushing and pulling, there should be mechanical assistance in the forms of body restraint systems that could substitute for gravity. These restraint systems must be developed under neutral buoyancy conditions on Earth or in actual conditions of the space. Handhold, waist and foot restraints can be used for holding onto a handgrip to accommodate functional reaches; waist restraint for good body control; and foot restraint if the need is excellent reach performance, stability and control (Man-Systems Integration Standards, 2006). Gravity could also have a significant effect on a person’s biology. Particularly, the reduced gravitational force could induce spatial disorientation and space adaptation syndrome or space sickness (Ercoline, 1994). Such are not considered positive effects because they cause impairment of performance. Spatial disorientation refers to changes in posture, vertigo and illusions of movement that could result to tumbling (Brown, 2000). Critical activities are not advised to humans on mission when they are spatially disoriented. In the first days in space when humans experience space adaptation syndrome, humans tend to limit head motions. The effect is increased task time. What is usually done at this point is having limited activities that require speed (Man-Systems Integration Standards, 2006). As implied earlier, gravity also has effects on the human muscular and circulatory system. The effects of diminished gravity on humans’ exercise capacity as a result of reduced cardiac activity (Davis, 1999; Bungo, 1983) and muscular strength (Patton, 1987) necessitates countermeasures such as diet plans and exercise plans (Man-Systems Integration Standards, 2006). One thing that must be considered by the space industry is the adjustment of the human circadian rhythm and the effects of such adjustments in human performance (Gander, 1989). As it is, the goal of human factors research is to effect easier conditions in the space so that better and more successful performance is expected. Failure to do so would mean a loss in life and loss in significant investments (Man-Systems Integration Standards, 2006). Another thing that humans involved in space missions experience is great acceleration and vibration. Acceleration affects the vision depending on how its force is directed. The usual results are dimming of vision, loss of vision at a certain side, usually the periphery, and diminished, blurred or doubled vision. This restriction in vision could induce motion sickness which could affect performance (Stern, 1990). Vibration also has a degrading effect on the performance. It is usually during the lift-off and landing when vibration is greatest. Unfortunately, there are many times when vision is very important. Because of this, letters on equipment and signs are usually written in large format so as to accommodate any blurring or degrading effect of vibration on the person’s vision (Man-Systems Integration Standards, 2006).

Why Everybody Is Mistaken About Conclusion for Narrative Essay Samples

Why Everybody Is Mistaken About Conclusion for Narrative Essay Samples Based on the reasoning supporting the essay, each paragraph has to be formulated in such a manner it reflects the exact core reason in such a manner that even readers with no prior understanding of it can understand it easily. The aforementioned essay is on the research-based facts and may be used for developing your mentality and perspective to a large level. For a great narrative essay to take effect, you've got to think of a brilliant conclusion and set a last touch to it. Don't forget, though you might not be crafting the upcoming great novel, you making an effort to leave a long-lasting impression on the folks evaluating your essay. Never underestimate the significance of an outline, especially in regards to creating narrative essays. A good thesis statement contributes to a good essay. Therefore, the words to begin an essay ought to be strong and persuasive in place of neutral. To structure an es say, you should simply stick to the aforementioned format. Conclusion for Narrative Essay Samples Secrets That No One Else Knows About You will need to understand how to compose an effective essay as it is a typical foundation for a student's grade. Even in the event the deadline is actually tight, feel free to get hold of our managers. Needless to say, this issue of an essay is distinguished in line with the students' age. Expository essay topics might be selected by means of a student as inquiry. Starting an essay with a question or several questions in a row provides the readers a chance to consider over the subject of an essay since they aren't just given the information but are requested to present the answer along with the writer. In addition, there are times when you truly feel like you don't need to write something. In this kind of essay, you should describe something without being metaphoric. If you're going to compose an expository essay, be ready to devote much time hitting books. Getting the Best Conclusion for Narrative Essay Samples More than every other sort of writing, expository writing is a daily requirement of the majority of careers. An introduction is easily the most significant part your bit of writing. Nowadays it's quite difficult to locate a trustworthy essay writing service. If you still find it tough to work on your expository essay, speak to our on-line writing team made from professional writers with 10 or more decades of experience to receive your own personal academic lifebuoy! Conclusion for Narrative Essay Samples - Is it a Scam? Listed here are the tips about how to initiate a conclusion for an essay. If this is the case, you might have a very good beginning to your expository essay. The essay is to concentrate on the action description. Cause and effect essays are written to supply an explanation of the way in which an action causes a result. Up in Arms About Conclusion for Narrative Essay Samples? As you 're most likely already aware, it is quite rare to obtain a wholly open-ended expository essay assignment. The thesis of the expository essay needs to be based on factual information which will be displayed in the body of the essay. Locate some generalization your essay supports or proves. An essay must be clear and unbiased. There are many approaches to begin an essay the selection of which is contingent on the topic and the objective of an essay. There's no ideal solution about how to compose an effective essay. There are several methods about how to compose an expository essay. There are some unique procedures for writing an expository essay. The Conclusion for Narrative Essay Samples Game In any case, whenever an essay is started with a quotation, it isn't a very good concept to conclude it the same manner. It's quite convenient because the introduction and conclusion that are extremely concise don't make it possible for you to provide a whole lot of unnecessary particulars. To begin with, you should secure the significance of the expository essay definition and pick the topic you understand well or at least find it interesting to find out more about. The benefits of a quick essay is you can concentrate on a single side of the problem. Conclusion for Narrative Essay Samples and Conclusion f or Narrative Essay Samples - The Perfect Combination The cost of an essay is dependent upon the quantity of effort the writer has to exert. Then you need to focus on your reader. The absolute most important feature to keep in mind when writing an expository essay is you ought ton't write about your own private opinions. A topic sentence might identify what type of book it's, or the sorts of readers for whom the book might be of interest and why. Explanatory writing is normally used when a particular analysis is conducted. You could also get in touch with your writer to supply some added recommendations or request information regarding the order's progress. The conclusion ought to be a construction made from the past couple of paragraphs. The revisions are unquestionably free! Your paragraphs do not connect one another's meaning along with the full thought of your essay might be incomprehensible. Now you have a strong, informative, and intriguing introduction it's time to g et started with the body paragraphs. The words to begin a conclusion might have an objective character in the event the author of an essay finishes it with an objective sentence. Typically, you'll want to select one particular method for each bit of expository writing. Paraphrasing is an efficient method of developing a fantastic introduction utilizing specific essay introduction phrases. You ought to commence trying for the correct info. Focus on your language as it ought to be eerror-free Imagine your essay is a precious stone and produce all its faces shine using an easily readable and authentic language. The majority of the moment, expository essays are presented by offering a wide range of topics and methods to bring up the idea. Bright quotations by famous individuals might be great expressions to begin an essay. There are lots of expository essay topics to pick from. The more ideas you possess the more paragraphs you'll get. To the majority of people, body paragra phs are the sole sections of the essay that matter.

Italy Swot Analysis - 1732 Words

Introduction 1 Strength Italy is situated is the center of the Mediterranean Sea. The main strength of geographical location is that Italy belongs to the coasts of four different seas (Adriatic Sea, Ionian Sea, Tyrrhenian Sea and Ligurian Sea). There are two large mountain ranges in Italy: Alps and Apennines. It is a big plus for tourism sector of the country. Tourism is one of the fastest growing and profitable sectors of the national economy. Italian climate is very different. It is comfortable to travel to this country in every season. If it is summer you can relax in a seaside resorts or take a rest near different lakes. Also in summer you can mountaineer. In winter it is possible to skiing. In autumn and spring you†¦show more content†¦And now unemployment is growing too fast. The problem is that Italians tend to enter the work force at an older age. They take longer to find jobs and tend not to leave those jobs once they have them. As a result of it, many Italians turn to more flexible but illegal work. Speaking about criminality, it is necessary to say about Italian mafia. Based on the report of 2009 year, commissioned by Italys parliamentary anti-mafia commission, it is possible to say that now it is silently prospering, moving on from spectacular crimes and massacres to business and politics, with a prudent dose of intimidation and violence in a bid to take over the fundamental role of the state. The highest concentration of people living under the shadow of the mafia, 95.9%, was in the province of Agrigento in Sicily, followed by Naples, at 95%. (Tom Kington, guardian.co.uk, 2009). Now Italy has many problems in economic sector. The first is that it has very high debt level. Because of it Italy now is in crisis situation. Also Italian living standards have a considerable north-south divide. Italy suffers from structural weaknesses due to its geographical conformation and the lack of raw materials and energy resources. The country has an inefficient state bure aucracy, low property rights protection and high levels of corruption, heavy taxation and public spending that accounts for about half ofShow MoreRelatedThe Report On Nokia Mobile Phones1741 Words   |  7 PagesAutomotive Valeo Electronics Alcan Packaging Globe Motors St Gobain Abrasives Germany Brose Kern Liebers Fresenius Medical Korea LG Electronics Samkwang Eunsung Printing HS Electronics HD Electronics American Empak Feature Italy Haemotronic Israel Netafim Japan Alps/Alpine (2 plants) Bigston Corporation Chiyoda Fujitsu Ten (2 plants) GSW JVC Panasonic Electronic (2 plants) Mikuni Panasonic Service Company Sharp Mexico Galvotec Alloys New Zealand Read MoreCoca Cola s : Social Environment, Strategic And Economic Component883 Words   |  4 Pagesand supports UN Global Compact; Positive results of financial performances through using ROA and ROI evaluation and SWOT analysis and TOWS matrix identification; and finally, this report details the factors leading to the sustainability of the company, which it includes stakeholders’ involvement, GRI implementation, social and environmental sustainability. 2. Stakeholder analysis for Coca-Cola Hellenic Inc Coca-Cola mentions that it cannot attain its supportability objectives solely. It has a tendencyRead MorePestel Analysis on Motor Industry10196 Words   |  41 PagesOverview of Strategy Development Models and the Ward-Rivani Model corresponding author: Dr. David Ward, European School of Economics, Via Chiaravalle 9, 20100 Milan, Italy. All correspondence to Dr David Ward, Via Fornari 46, 20146 Milan, Italy email: daward@tin.it co-author: Elena Rivani, Via Orsoni 41, 40068, San Lazzaro di S. (Bo), Italy. Abstract Numerous models for developing strategy, defining and aligning competitive advantage have been proposed over the years (and even centuries if we considerRead MoreCaffe Nero2145 Words   |  9 Pagesvery significant point, a good atmosphere will give customers’ mind relax and happy, increase the customers’ consumption. When people go to the Caffe Nero, it will see behind the Caffe Nero, it writes ‘Italian’, it does not mean Caffe Nero is from Italy, it means in the Caffe Nero, the coffee style is Italian, the coffee is used for a unique Italian blend is made from seven different coffee beans, which is different with the other cafe rivals in the UK market (Caffenero.com 2011). Now a day, moreRead MoreIngvar Kamprad and Ikea Case1788 Words   |  8 Pagesin other European countries (Switzerland, Germany, etc.) in the period from 1973 – 1988? Please analyze this period using strategic tools (more than two), such as PEST, Value chain, SWOT analysis, Blue ocean, PPM, Porter’s competitive theories, Kotlers’ marketing theory, STP, 4P, etc, covered in class. PEST analysis: Politics * Different legislations due to the variety of market targeted * The after world war 2 that led to the confrontation between the two blocs | Economics * 1973 oil crisisRead MoreVsm Group: Examination of Strategic Position and Development of a Competitive Strategy4519 Words   |  19 Pagesused to analyse both the internal and external environment of the company, namely, PESTEL, Five Forces Model, and the SWOT analysis The examination of the strategic position of VSM will involve analysing the strategy of the company with emphasis on the environment it operates in, its strategic capabilities, and how expectations affect organisational purposes and strategies. The analysis will conclude with a clear statement of the Key Issues and Critical Success factors. The strategic position of VSMRead MoreTips For A Dessert Shop1978 Words   |  8 Pageset up a dessert shop in UEA Overview My dessert shop will be named Tiramisu, which is a famous Italy dessert. This shop will be mainly sells desserts to the campus students and staffs, as well as middle-income residents of neighboring house, and caterers near UEA. Brief introduction of the business This shop will sell different kind of dissert especially special dessert from all over the world. Considered that my customers will mainly be the students in the school, whose age is usually between 18Read MoreHistory and Analysis of the Pharmaceutical Industry4211 Words   |  17 PagesThe History and Analysis of the Pharmaceutical Industry Pharmaceuticals Industry Analysis i 1. Origins and Evolution 2 2. Environmental Analysis (PEST) 2 3. Structural Industry Analysis (Porter’s Five Forces) 4 4. Strategic Issues Facing The Industry 5 5. Analysis of Key Industry Participants and Strategy 6 6. Pfizer – SWOT Analysis and Strategy Review 8 7. Conclusion 10 8. 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SWOT analysis, including: †¢ An internal analysis (Strengths Weaknesses of Illy Espressamente) †¢ An external analysis (Opportunities Threats from the Global Coffee Market). †¢ A strategic SWOT analysis, crossing internal external analyses, in order to determine strategic directions for the internationalization of Espressamente. 3. Analysis of each of the 7 foreign markets considered for expansion: †¢ Cultural distance with Italy †¢ Market attractiveness (based

The Importance Of The American Dream - 773 Words

The American dream has changed drastically thru our history. Back in the 1950 and 1960 the American dream was to have the house with the white picket fence and the 2  ½ kids. Now the dream for a lot of people is to be able to pay their bills and maybe have enough money to go out for a nice little dinner that you did not have to cook yourself. The American dream is dead, it is because the concept has changed from the idea that everyone can improve their life through hard work to the idea that everyone can become a millionaire through virtually no work. The United State at one point used to have everything you needed to make this dream happen. But since jobs have been moving over sees we have lost all of that. The American Dream is so†¦show more content†¦But doing this, this gives the poor more jobs to do causing them to fall behind in other tasks making them poorer by the second. Even though the poor are the people whom do the most work in the world, 40% of Americas money goes to the rich while only 1% goes to the poorer population (academic.udayton.edu). As the rich get richer, the poor get poorer widening the gap between the two more and more every day, this very second. Celebrities and local millionaires own the world. They run the businesses and the passion that gives the poor jobs. So as much as the poor hate the rich, they end up working for them in the end, less likely to become them. This is a psychological truth that causes much stir among the poor and possibly some of the rich. As a rich person, you are less likely to make contact and accept that the poorer are around you. Its the same concept for the poor to the rich. Its hard to accept the truth, especially when it comes to terms with your social class. But to the rich, owning the world isnt an issue. The cement that should hold our society together is the supposed peace of mind that the government will give in the form of aid to the less fortunate. This financial assistance includes low cost living facilities, money for food, and most importantly, healthcare. Another hot issue on Capitol Hill is the funding of social security. It is my belief that social security should not be tampered wit h at all, becauseShow MoreRelatedThe Importance Of The American Dream918 Words   |  4 Pagesthere are some individuals who want the American dream, such as non-Americans. Even though immigrants essentially founded the American dream as the thirteen colonies expanded, current bans preventing entry from certain countries and regulations attempting to deport others seem to rip that dream out of their grasp. Contrary to popular beliefs, the American dream is not the white picket fence vision we were taught in high school history. Instead, the American dream is the desire to live comfortably withinRead MoreThe Importance Of The American Dream1547 Words   |  7 PagesThe American Dream, an ideal first defined by James Truslow Adams in the 1931 novel Epic of America. Adams (1931) defined the dream as, The American Dream is that dream of a land in which life should be better and richer and fuller for everyone... (p. 214). The dream of our ancestors has not changed with the passage of t ime, but achieving the dream has become much more difficult for the average American. Reviewing data compiled the last few decades paints a bleak picture, wage disparities haveRead MoreThe Importance Of The American Dream918 Words   |  4 Pageswork through the American Dream, but for one American, Lilly Ledbetter, success has not always come that easily. While working for GoodYear, Ledbetter learned that she was earning less money than her male counterparts. In addition, she was being sexually harassed by her coworkers and punished with poor reviews when she did not comply with their suggestions. As a result, even though Ledbetter worked just as much, if not more, than her male co workers, she was not rewarded as the Dream promises. ThereRead MoreThe Importance Of The American Dream1321 Words   |  6 PagesFormer First Lady, Michelle Obama, eloquently summarized the American Dream at the Democratic National Convention in 2012. â€Å"Barack knows the American Dream because hes lived it...and he wants everyone in this country to have that same opportunity, no matter who we are, or where were from, or what we look like, or who we love. And he believes that when youve worked hard, and done well, and walked through that doorway of opportunity...you do not slam it shut behind you...you reach back, and youRead MoreThe Importance Of The American Dream916 Words   |  4 Pages During the 21st century, there has been a realignment of both social classes and habits due to the events of the last 20 years that make the American dream of the second half of the 20th century impossible to attain. According to Dictionary.com, the American dream is the ideals of opportunity, freedoms, and equality for all Americans. The Am erican dream can no longer be attained for many reasons, but one big reason would be that people of this generation’s interests are not the same of those ofRead MoreThe Importance Of The American Dream1363 Words   |  6 Pages its possible to achieve the American dream.† -Tommy Hilfiger. What is the American dream? How is it possible to achieve the American dream if there are large corporations ruining it for the companies trying to reach such dream? The American dream consists of the ideal that every US citizen should have an equal opportunity to achieve success and prosperity through hard work, determination, and initiative. What about those who are starting a new business whose dream is to become a large organizationRead MoreThe Importance Of The American Dream1231 Words   |  5 Pageswanted to be successful and powerful. The American Dream or the idea that everyone in the U.S. has an equal opportunity to succeed has been around since 1931. The problem with the American dream today is that in reality people don’t have the same opportunities as they used to. The American Dream may actually just be a dream with no real evidence to prove it’s true. 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Developmental studies Free Essays

string(124) " comparative advantage and consequently domestic barriers should not be imposed on the purchase of goods produced overseas\." At the beginning of the twentieth century underdeveloped countries began to look for the ways to diminish their dependency on agricultural exports and to bring on an industrial revolution. The situation which evoked this need was critical. The problem was that the underdeveloped countries developed mainly the policies of supporting primary commodity exports. We will write a custom essay sample on Developmental studies or any similar topic only for you Order Now Transportation policy was used in the infrastructure for delivering the export crop to the harbour. The research institutions specialized in agriculture worked only on improving crops for export, for example, sugar cane, coffee, cotton, etc.  while crops for domestic consumption, for instance, beans or manioc corn, potatoes, left with little or even without expenditure. As a result some of the underdeveloped countries had to follow the policy of import substitution to induce industrialization. Import substitution industrialization will be the goal of study of this paper. This economic policy will be investigated in the frames of an economic term with the necessary characteristics and also in a wider meaning as the experience of the countries of East Asia and Latin America. In the process of research different points of view, both pro and contra, will be cited in order to shed the light on positive and negative aspects and cover the field broadly. In the conclusion of the paper the main findings will be summed up. The term of import substitution can be defined as an economic process and as a policy strategy. As a process import substitution relates to the situation â€Å"where regions (more precisely, existing or new economic activities within regions) take up the production of goods or services which formerly were imported, but, for whatever reasons, now can be viably produced within the region (e.g. as a result of population increases leading to increases in demand or as a result of productivity increases resulting in greater competitiveness. †(Economic Geography Glossary, 1999) Import substitution industrialization (ISI) as the economic strategy means encouraging the development of domestic industry by limiting manufactured goods import. The need of ISI implementation arouses from the belief that there is a potential comparative advantage in some of the industries of developing countries, but these industries are too weak yet to compete with foreign well-established ones. Thus, in order to allow infant industries to establish themselves and to realize their potential, and consequently to be able to compete internationally, governments should support the initial period of their development. The protection of government implies temporary measures such as using tariffs or import quotas to start industrialization in the country. As a policy strategy import substitution can be used to achieve the following goals: 1) to utilize the capacities which are underused; 2) to fight unemployment in the regions; 3) to protect infant industries. The policy of import substitution industrialization, according to the definition provided by the encyclopaedia, is â€Å"a trade and economic policy based on the premise that a developing country should attempt to substitute products which it imports, mostly finished goods, with locally produced substitutes. †(Wikipedia, 2005) The theory of import substitution has much common with the theory of mercantilism. Both the theories promote minimal imports and high exports as the means of inducing the growth of national wealth. In order to implement the policy of import substitution industrialization, the following three main tenets must be pursued: 1) protective barriers to trade, which can be set up in the form of tariffs. Tariffs or custom duties are applied to the goods which are imported and in this way they artificially protect domestic industries from competition with foreign companies; 2) a particular industrial policy, which orchestrates and subsidizes production of the substitutes; 3) a monetary policy, which will keep the domestic currency overvalued. Monetary policy is implemented by setting reserve requirements and changing some interest rates directly or indirectly. The chief tools of monetary policy are operations in open market. In open market money circulates through the selling and buying of deferent foreign currencies credit instruments, or commodities. Such sales or purchases create a certain base currency which leaves or enters market circulation. Usually open market operations are aimed at achieving a specific short term interest rate target. However, monetary policy may also target a certain â€Å"exchange rate relative to some foreign currency or else relative to gold. † (Wikipedia, 2005) Equally important is to note that import substitution as economic protectionalizm can have negative outcomes. Stutz pointed out that â€Å"This form of economic protectionism helped some countries industrialize in the past but involves economic risks. † (Stutz and Souza, 1998) The risks of import substitution meant by Stutz are potential inefficiencies and higher prices. Successful implementation of this policy as a rule needs massive expenditure on infrastructure. Additionally, import substitution is accompanied by the establishment of state firms in the areas of industry which are thought to be too risky or too large for the private sector (or example, steel, aircraft) or estimated to be too important to be owned by foreign firms (or instance, oil). The policy of import substitution industrialization was argued by the advocates of absolute free trade theory. Generally, free trade becomes possible when the flow of services and goods between countries is not taxed. In particular, the economists who supported free trade policy stated that economic strategy would become successful only under the following conditions: 1) international trade in services must be without trade barriers, or tariffs; 2) international trade of goods must not be free from any possible tariffs (namely taxes on imports) or trade barriers (for example, quotas on import); 3) the free movement of international labor; 4) the free movement of international capital; 5) the absence of any economic protectionalizm, implemented by trade-distorting policies (for instance, subsidies, regulations taxes, or laws), which gives an advantage to domestic firms, factors of production, and households over foreign ones. Thus, it becomes obvious that free trade proponents advocated the policy which totally contradicted the fundamental tenets of import substitution industrialization. On the other hand, free trade proponents suggested that a foreign subsidy should be considered as another of comparative advantage and consequently domestic barriers should not be imposed on the purchase of goods produced overseas. You read "Developmental studies" in category "Papers" Free trade economists pointed out that unlimited imports will be beneficial for domestic consumers which overweighs the loss of domestic producers. Thus, the lower prices of foreign subsidies can be considered as net positive. Therefore, the domestic society where any import restriction is applied becomes â€Å"a whole worse off than it would be with unlimited imports. † (Wikipedia, 2005) Anyway, the viewpoints of the both theories – import substitution industrialization and absolute free trade – were checked in the process of their implementation and in real life experience. In the period from 1930 to 1940 the policy of import substitution industrialization was adopted in many underdeveloped countries of Latin America. The driving force which precipitated the acceptance of import substitution idea was the Great Depression which took place in 1930s. According to article Concern with Policy-relevance in the Latin American School of Economics authored by Bianchi, â€Å"Import substitution was a necessary condition for peripheral growth, in association with structural reforms in the economy. The focus should be placed on the strenghtening of the domestic market, which was seen as the crucial element of an inward-looking model of development. † (Bianchi A. M. , 2003) Later on, in the 1950s Raul Prebisch, the prominent Argentine economist, expressed his belief that the only way to succeed for developing countries was to build forward linkages domestically and to create industries which would work on primary products already produced by the countries themselves. The policy of tariffs would help the domestic industry to prosper. By implementing the policy of import substitution industrialization in the period from 1950 to 1970 a number of Latin America countries, in particular Mexico, Brazil, Argentina, Chile, Uruguay, attempted to reach positive results and to increase their national wealth. The success of the policy in these countries was based on either high living standards or large populations. However, poorer and smaller countries, for example, Dominican Republic, Ecuador, Honduras, were not successful in adopting import substitution policy. Also it is notable that the countries which succeeded in import substitution industrialization managed to change the structure of their governments. Thus neo-colonialism collapsed and was replaced by democratic way of governing. Nationalization turned banks and utilities into public property and returned to nation some of the companies previously owned by foreigners. A case of implementation of import substitution industrialization can be examined with the help of the example of Brazil. Brazil was the country which carried the policy of import substitution industrialization later than other underdeveloped countries. The economists in Brazil carefully analyzed its effects and were planning the industrial development of the country while the other countries started import substitution mainly by accident. It is important to note that Brazil initially had all the chances for success in the policy of import substitution, since its population goes up to 170 million, which makes Brazil the fifth largest country in the world. Also Brazil is the fifth largest country by its land area. And finally, Brazil is rich in forest reserves, minerals, navigable rivers agricultural land, and hydroelectric capability. The development of Brazilian economy in the period from 1950 to the 1970s confirmed the most optimistic views. Brazil with its rich resources and reserves was called â€Å"the land of the future†. In 1950 Brazil attempted to establish the largest industry of motor vehicle having practically no sufficient basis. Thirty years later aircraft of Brazil were working on commuter airlines on the United States. Brazilian shoes spread everywhere. Moreover, Brazil opened up the richest iron mine in the world and Brazilians found out the capital city on the place where previously had been a roadless jungle and built the network of roads going deep into Amazon. When the oil prices rose and began threatening the development of Brazil economy, Brazilians launched huge hydroelectric projects to operate the growing industries of the â€Å"Golden Triangle†, which included Sao Paulo Rio de Janeiro, and Belo Horizonte and required the new automobiles to run on rum instead of gasoline. At the beginning of the 1980s even pessimists agreed that Brazil was â€Å"the country of future†, however added â€Å"and always will be†. The growth of Brazil stopped, when it was almost close to ripening. The modern cities in Brazil coexist together with miserable shanty-towns surrounded with open sewers. The roads are shared by modern vehicles and hand carts. The wages of Brazilian executives are the highest in the world, but at the same time average workers hardly reach subsistence level. Some economists call Brazil â€Å"a Switzerland within an India. † Other economists consider that the case of Brazil brightly illustrates economic growth without economic development. Economist Celso Furtado characterized the state of Brazilian economy in the following way: â€Å"The Brazilian economy constitutes a very interesting example of how far a country can go in the process of industrialization without abandoning its main features of underdevelopment: great disparity in productivity between urban and rural areas, a large majority of the population living at a physiological subsistence level, increasing masses of unemployed people in the urban zones, etc. † (Development policies, Catching Up, Sec 2, Chap 14) By the 1950s the industrial development by means of import substitution had been already a planned process in Brazil. New industries were protected from the foreign competition with the help of a number of methods. Basic industries (for example, steel, electrical power, petroleum reining) became either fully owned by state or received direct subsidies. Law of Similars aimed at putting high tariffs (sometimes tariffs went up to 300%) on imported goods as soon as any domestic firm somewhere in Brazil started manufacturing something ‘similar’. The industries considered high priority always could be credited under favorable terms by a national development bank. For some period of time, the government even set multiple exchange rates in order to lower the cost of imported capital equipment while the price of imported finished goods was kept expensive. One of the growing Brazilian industries in the mid of twentieth century was motor vehicles. The government hoped that foreign financing would help to expand Brazilian firms which were already producing motor parts, bus bodies, truck and so on and soon would turn them into real vehicle manufacturers. But this approach had to be changed for the government of Brazil faced the reluctance of American government to extend loans and the disapproval of the firms from Europe and the USA who owned a critical technology. The world famous giants – Fiat General Motors, Mercedes Volkswagen, and Ford – were threatened to lose their markets in Brazil if they did not manufacture vehicles within the country. It is important to note that modern manufacturing, in particular the production of appliances, motor vehicles, TVs and so on is a complex process that requires substantial knowledge and skill. Final assembly became possible in Brazil since it was the last stage of production and required the least skill. So, launching modern industries Brazil could start with final assembly and gradually came to more complicated â€Å"backwards†, which included more difficult procedures. For example, Volkswagen could start importing complete parts, such as engines, wheels etc. and assemble them in Sao Paulo plant. The tariffs allowed Volkswagen to sell 1960 30% Brazilian Beetle for twice what Europeans would pay even if the quality was not that high. Eventually, most of the parts became produced in Brazil and the quality of assembly improved. Gradually, the competition from Brazilian Fiats, Fords, and Chevrolets pushed the price down. In this way, Brazilian motor vehicle industry became more and more efficient and even in the 1970s Brazil exported subassemblies and parts to America and to the European countries. By 1980 Brazil started exporting entire vehicles. When import substitution industrialization was implemented in Latin America, the drawbacks of the policy soon revealed themselves. In Brazil as well as in other Latin America countries import substitution model led to foreign ownership in all the sectors in industry except those occupied by state enterprise. When the interests of foreign firms were threatened by Brazilian taxes, environmental or labor legislation, American, German, Italian, British Japanese or French owners were quick to call on their state departments. In particular, the Department of the United States defined one of its key objects as establishing favorable â€Å"business climate†. This meant undermining Brazilian government. Thus, in 1964 some Brazilian generals, being encouraged by American officials, made an attempt to overthrow constitutional government of their country. Another drawback of import substitution industrialization revealed in the fact that this policy led to huge foreign debts. It was not accidental, that Brazil and Mexico ran into debts in order to cover the expenses of their infrastructure development. The development of infrastructure needs a large number of hard currency imports. If infrastructure grows and increases exports together with hard currency earnings, a country can borrow in dollars. Then, under such condition, the country has to earn dollars in order to make the interest payments. But import substitution requires borrowing in dollars for the purpose of economic development of the domestic production that will not necessarily expand exports. By the end of the seventies the countries of Latin America faced the problem: Where to go next? And the next logical step was to export the goods which had been already produced efficiently. By the middle of the eighties Brazil became the largest exporter of shoes and coffee, among ten major exports to America, six were manufactured projects. Nevertheless, the expansion of manufactured goods made Brazilian economy vulnerable to retaliatory tariffs. Moreover, in the 1980s Brazil as well as other underdeveloped countries of Latin America did not manage to pursue the next layer of import substitution ( in particular, microchips, computers, capital equipment), although they attempted to create open markets for their manufactured consumer goods. Unlike the nations of Latin America, the majority of East Asian nations rejected the policy of import substitution industrialization. Due to this, as many economists think, East Asia had its superior performance in the seventies and the eighties of the twentieth century. Generally speaking, the Asian growth had started before World War II in Japan. The process of Asian growth included three groups of countries whose economic â€Å"miracle† began at different times: 1) Japan (after the Second World War); 2) The â€Å"four tigers†: Taiwan, South Korea, Hong Kong, Singapore (the sixties of the twentieth century); 3) Indonesia, Malaysia, Thailand, China (from the 1970s to the 1980s) In fact, by rejecting import substitution industrialization Asian nations managed to avoid some negative results of this policy. First, their economies were not dragged by inefficient industries. Second, East Asia did not have to implement policies benefiting industrial workers at the expense of those working on the farms. This was crucial for Asian countries because farmers made up the majority of their population. In addition, in order to diminish the cost of industrialization, the cost of food needed to be kept artificially low. And also, East Asia attempted to prevent the appearance of rent seeking behaviours, which resulted from the usage of the licensing schemes for import substitution strategy and which usually increased inefficiency of economics. High tariffs on manufactured goods, which were imposed by many countries in order to create their manufacturing bases, forced multinational companies to assemble or produce them locally. For example, manufacturers of motor industry exported vehicles for local assembly. Their vehicles were delivered ‘completely knocked down’ and the local assembly resulted in poorer quality and higher expenditures in comparison with those imported already built up. Moreover, the local assembly of identical products only duplicated resources and reduced economies of scale, which became increasingly inefficient for manufacturers. On the whole, at the beginning of 1980s the policy of import substitution industrialization began to fail both in Latin America and in those Asian countries where the policy was adopted. Generally, it happened because the governments involved in the policy started to overspend reserves in order to keep the stability of currency. The governments in Latin America defaulted on their debts and had to turn to the help of the International Monetary Fund. Another process which contributed to the failure of import substitution was globalization. However, some economists think that the collapse of the policy of import substitution industrialization â€Å"should not necessarily be taken as an endorsement of globalization. † (Wikipedia, 2005) Such point of view was supported by the fact that some countries of East Asia also used high tariff barriers while rejecting the rest of the strategy of import substitution. This mixed policy was focused on investment and subsidies on the industries which would produce goods for export. As a result, these Asian countries managed to create competitive industries. However, irrespective of all their achievements, the policies described above also proved to be inefficient and later led to many problems during Asian financial crisis. The closing period of import substitution industrialization was in 1989 when the Washington Consensus as a set of policies designed to promote economic growth in the countries of Latin America was presented by John Williamson. The Washington Consensus included reforms which continued the policy of import substitution industrialization offering a modernized version of its tenets. In particular, the Washington Consensus proposed the following: 1) the discipline of fiscal policy; 2) tax reform. It flattened tax curve: the tax rates on high tax brackets were lowered and the tax rates on the low tax brackets were raised. Also it suggested lowering the marginal tax rate; 3) Competitive exchange rates; 4) Trade liberalization by means of low and uniform tariffs which would replace quantitative restrictions; 5) Reduced limitation for foreign direct investment; 6) Privatization of state enterprises; 7) Deregulation, which implies â€Å"abolition of regulations that impede entry or restrict competition, except for those justified on safety, environmental and consumer protection grounds, and prudential oversight of financial institutions† (Wikipedia, 2005) 8) Property rights must be legally secured; 9) Public spending should be redirected toward the investment of health, education, and infrastructure; 10) â€Å"Interest rates that are market determined and positive (but moderate) in real terms. † (Wikipedia, 2005) In the nineties the Washington consensus was being disputed. The critics of the reforms argued that they would lead vulnerable countries to crisis instead of helping to overcome it. Naomi Klein and Noam Chomsky claimed that the neoliberal policies of the Washington consensus would lead to the exploitation of labor market of an underdeveloped economy by a more developed one. (Wikipedia, 2005) Privatization of state industries, deregulation, and tax reform were seen by the opponents as the reforms which would ensure the development of the layer of local monied elite who would pursue local interests and try to maintain local status quo. Jorge Taiana, the Deputy Foreign Minister of Argentina, also disapproved the Washington consensus saying that such policies never had a real consensus and nowadays â€Å"a good number of governments of the hemisphere are reviewing the assumptions with which they applied those policies in the 1990s,† adding that governments are working on a development model which would ensure productive employment and guarantee the generation of real wealth. (Wikipedia, 2005) Another economist Duncan Kennedy in the article for The Boston Review stated that the Washington Consensus completely opposed the initial tenets of import substitution industrialization and more favoured American political interests: â€Å"In the form promoted by the United States, ISI was as hostile to free-market economics as to Communism. The overarching idea of the Washington Consensus was to wipe out every aspect of ISI: the Washington Consensus is both that free markets are good and that ISI [Import substitution industrialization] was bad. Developing countries were to develop through integration into the world commodity and capital markets, with policies of deregulated private enterprise, foreign investment, and open economic borders. † (Kennedy D. 2003) All in all, taking into consideration the mistakes of the previous experience and the criticism of the economists, the developmental policy of import substitution industrialization has never been returned since the time of the Washington Consensus. Thus, in the paper import substitution industrialization as a process and as a policy was investigated. It was found out that import substitution pursues three main goals: utilization of underused capacities, reducing unemployment and infant industries protection. The implementation of the policy of import substitution industrialization is based on three tenets: particular monetary and industrial policies, and protective trade barriers. However, it turned out that success and efficiency of import substitution industrialization was doubted by the proponents of absolute free market. Potential risks of import substitution were also visible while careful theoretical analysis and pointed out by economists. The underdeveloped countries of Latin America and East Asia implemented the policy of import substitution industrialization. It occurred that the potential risks and the negative aspects found out by the proponents of absolute free market constituted the drawbacks of the policy and finally became the chief factors of its failure. However, the major part of East Asian countries rejected the policy and experienced economic growth. The example of Brazil demonstrated that the policy of import substitution industrialization can stimulate economic growth for some period of time, but its drawbacks (first of all high expenditures and inefficiencies) pose real obstacles for continuous and strong economic development. 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Challenges of Globalization free essay sample

A paper which discusses policies undertaken by Singapore, Malaysia, Australia and Japan to face the challenges of globalization. This paper discusses the globalization trend in the Southeast Asian region, highlighting policies undertaken by Singapore, Malaysia, Australia and Japan. Each country is examined in detail, using recent statistics and research to support the discussion. Also discussed are the obstacles they face in adopting these policies. Globalisation can be defined as the ongoing economic, technological, social, and political integration of the world that began after the Second World War. However, there are also institutional and social changes that are taking place within the geographic borders of nation states, though these are much more difficult to quantify. Institutional changes include modifications in policy, in industrial organization, and in the administration of laws and regulations that govern the behavior of economic agents. Globalization is impacting the institutional framework in both developing and industrial countries; it is changing the way in which governments view their developmental role in society (ADB, 2001, p. We will write a custom essay sample on Challenges of Globalization or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page 161). This essay aims to discuss the globalization trend in the Southeast Asian region, highlighting policies undertaken by Singapore, Malaysia, Australia and Japan. It also discusses the obstacles they face in adopting globalization.