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1、TheoriesofDevelopment:AComparativeAnalysisChapter3LeadingTheoriesofEconomicDevelopment:FiveApproachesClassicalScenario古典經(jīng)濟增長理論Linear-stages-of-growthmodel線性增長模型Neoclassicalmodels新古典增長模型Endogenousgrowth內(nèi)生經(jīng)濟增長模型亞當·斯密與報酬遞增產(chǎn)出、生活水平提高→資本積累→利潤的儲蓄→工業(yè)和農(nóng)業(yè)的專業(yè)化勞動分工勞動分工決定了勞動生產(chǎn)率。勞動分工提高勞動生產(chǎn)率有三種途徑：
2、1、工人工作技能的提升，即邊干邊學。2、分工的細化節(jié)省了在不同工作間轉(zhuǎn)移的時間。3、機器的發(fā)明使同一個勞動者可以從事多種工作。勞動分工受到市場規(guī)模的限制。1、如機器的使用只有在市場規(guī)模較大情況下才有經(jīng)濟性，否則就會出現(xiàn)剩余產(chǎn)品。2、自由貿(mào)易對市場規(guī)模的擴大有著積極的意義。斯密的報酬遞增觀點是新內(nèi)生經(jīng)濟增長理論的核心思想古典悲觀主義TP*TPOWsubsistencewagelinePE2W2W1E1N1N2LaborTotalproductionOriginalcondition:Labor:ON1Production:OPWage:N1W1Surplus:E
3、1W1DemandforlaborincreaseWagesincreasetoE1N1>N1W1AccordingtoMalthusiantheoryofpopulation,populationwillincreasetoON2;SurplusappearagainE2W2Equilibriumpoint:ETechnologydevelopment:E*,thedayofdoomcannotbeeliminatedEE*LimitationsoftheclassicalmodelTheroleoftechnologydevelopmenthasbeeng
4、rosslyunderestimatedTheMalthusiantheoryofpopulationgrowthhasbeenprovedtobemisleading:wheneverwagesareabovelevelofsubsistence,populationwillincrease??TooaggregatedanddidnotaccountforthediversitieswithlaborandcapitalinputTheLinear-StagesTheoryRostow’sstagesofgrowthTheHarrod-Domargrowt
5、hmodelObstaclesandconstraintsSomecriticismsofthestagesmodelRostow’sstagesofgrowthTheTransitionfromunderdevelopmenttodevelopmentcanbedescriedintermsofaseriesofstepsorstagesthroughwhichallcountriesmustproceedthetraditionalsocietythepre-conditionsfortake-offintoself-sustaininggrowththe
6、take-offthedrivetomaturitytheageofhighmass-consumption三種不同的增長率：實際增長率g;有保證的增長率gw;自然增長率gn實際增長率TheHarrod-DomarModel(3.1)(3.2)(3.3)(3.4)v:capital-outputratio;S:savingratio;S:totalsaving;Y:totaloutput;K:capitalstock;I:totalinvestment有保證的增長率：這樣一種增長率將引誘投資剛好等于計劃的儲蓄，保持資本完全被就業(yè)，從而制造商愿意在未來以過去相同
7、的比例進行投資TheHarrod-DomarModel(3.5)(3.6)(3.7)Harrod-DomartheoryofeconomicgrowthTherateofgrowthofeconomicoutputIsdeterminedjointlybythenationalsavingratioSandnationalcapital-outputratioKThemainobstacleondevelopmentistherelativelylowlevelofnewcapitalformationinmostpoorcountriesJustifying
8、massivetransfersofc
