试析李嘉图比较成本理论的教学难点

On the Difficult Teaching Content of Ricardian Comparative Cost Theory

李嘉图比较成本理论中的过剩供给曲线和国际均衡价格是该理论的教学重点和难点内容。从收入效应角度可以完善李嘉图比较成本理论的数理经济分析,明析该理论的过剩供给曲线和国际均衡价格的确定。结论认为,某种产品的收入效应越大,则出口国能够获得较多的国际贸易利益,而进口国所获得的贸易利益较少。结论的政策内涵强调提高出口产品收入效应的重要性。

Curve of excess supply and international equilibrium price in Ricardian comparative cost theory are teaching content, important and difficult. By perfecting mathematical economics analyses of Ricardian comparative cost theory from the perspective of income effect, the paper explains the curve of excess supply and international equilibrium price, and reveals the soul of the theory with a conclusion that an export country gains more while an import country gains less from international trade as income effect becomes greater. The policy implication of the conclusion emphasizes the importance of improving income effect of export products.