贸易、环境污染与经济增长——基于开放经济下的一个内生增长模型

Trade,Environmental Pollution and Economic Growth:An Endogenous Growth Model in Open Economy

通过构建一个开放经济条件下的内生增长模型,文章探讨了国际贸易、环境质量与经济持续增长三者的内在关系以及相互作用的动力机制。首先,通过对模型的竞争性市场均衡分析,给出了平衡增长路径的经济增长率,并系统地分析了在环境污染进入效用函数的情形下长期经济增长的内在机理。其次,通过对最优增长路径进行比较静态分析,分别讨论了贸易自由化对环境质量、经济增长、福利效应的影响;污染外部性对长期经济增长的约束等。最后给出了模型的综合结论及其现实涵义。

By establishing an endogenous growth model in open econo my, this paper investigates the interrelationship between international trade, environmental quality and economic growth. The competitive market solu- tion shows how steady stage growth rate depends on the environmental pollution, and our comparative static analysis reveals the impact of trade on environmental quality, economic growth and welfare, as well as the constraint of pollution on economic growth. Finally policy implication is also provided for our model.