宇泽两部门经济增长模型探究  

A Review on Uzawa's Two-Sector Model of Economic Growth

作　　者：李政军[1] 

机构地区：[1]南京师范大学商学院

出　　处：《南京师大学报（社会科学版）》2008年第4期52-58,共7页Journal of Nanjing Normal University(Social Science Edition)

基　　金：教育部人文社会科学重点研究基地项目(05JJD790011)

摘　　要：根据宇泽弘文在1961年提出的两部门经济增长模型,以及索洛等西方经济学家对该模型的批评和发展,运用数理和几何相结合的方法,再现宇泽模型的基本假定和理论陈述,可以发现:在新古典假设前提下,引入比例储蓄函数并不能破坏古典储蓄函数的宇泽模型,相反,它使后者与单部门的索洛模型都成为比例储蓄函数的宇泽模型的一种特例;在宇泽模型中,假设消费品部门的资本密集度高于资本品部门,只有在比较优势理论的基础上才能得到解释;经济增长理论与一般均衡增长理论一样,属于相对价格理论而非宏观经济理论。Through an integration of mathematical and geometric methods, this article makes an adequate review of the fundamental assumptions and the theoretical statements of the two-sector model of economic growth which was first advanced by Hirofumi Uzawa in 1961 and then criticized and developed by Solow and other western economists. As a result, the following findings are attained： under the Neo-classical Hypotheses, Uzawa＇s model of classical saving function cannot be broken by the introduction of the ratio saving function, which instead makes Uzawa＇s model of classical saving function and Solow＇s one-sector growth model become a special case of Uzawa＇s model of ratio saving function ; in Uzawa＇s growth model, only by employing the theory of comparative advantage can it be explained that the capital intensity of the consumption sector is larger than that of the capital sector; and like the general equilibrium theory, the economic growth theory is not a macroeconomic one but a theory on relative price.

关 键 词：经济增长 经济模型 新古典理论 索洛模型 宇泽模型 比较优势 

分 类 号：F127[经济管理—世界经济] F224