李嘉图模型与新兴古典贸易模型的比较

在杨小凯消费者—生产者模型研究的基础上,构建了考虑比较优势的新兴古典贸易模型,通过引进劳动生产率参数,得出了两国之间进行国际贸易的基本条件,证明了这一条件不仅与比较优势有关,还与两国固有的国际交易费用有关,从而证实了李嘉图比较优势理论存在的缺陷以及国家或地区之间进行自由贸易的必要性。

Comparison between Ricardo Model and New Classical Trade Model

In the foundation of consumer-producer model of Yang Xiao-kai,new classical trade model is structured leading into the comparative advantage.It is shown how the model may conveniently display some characteristics of comparative advantage when a parameter representing the labor productivity is introduced.It also examines the basic conditions of international trade between two countries in terms of the international transaction costs.It is proved the condition is not only related to comparative advantage,but also to the international transaction costs inherent to the two countries.Based on these researches it goes on to show the comparative advantage theory of Ricardo has some inherent flaw.It discusses the typical trade characteristics expressed in the model,and three important conclusions are also drawn in terms of the comparative advantage parameter.