贸易进口倾向对经济发展的影响

How Trade Propensity to Import Affects the Economic Development

摘要: 经济发展与贸易的关系一直是国际经济学研究的核心主题之一，而各国经济发展对进口倾向的依赖性更是其关注的重点。本文分别以两国经济体、三国经济体及四国经济体为代表，研究贸易进口倾向对各国经济发展的影响。通过建立多国经济关系对称模型，对模型均衡解进行分析，揭示开放经济体中各国经济发展之间的相互依赖性。研究结果表明：在各国收入水平中，边际进口倾向起决定性作用，即具有较小进口依赖性的国家将趋于具有较高的收入实绩。

Abstract: The relationship between economic development and trade has been one of the core themes in the international economics research and economic development dependence on the propensity to import is a primary point of its concern. This article studies how trade propensity to import affects the economic development of all nations. It takes the examples of two nations, three nations and four nations and then develops a symmetric model of economic relations among multiple nations. The results of the study show that the marginal propensity to import plays a decisive role in national income level. Countries with a smaller import-dependence tend to obtain a higher income performance.