世代交叠模型中的环境政策分析

本文在OLG模型中考虑资本生产带来的环境外部性，分析了市场竞争均衡结构下的资本动态学，并且在稳态时比较静态分析经济中各因素对经济和环境的影响，认为：严厉的环境政策有利于积累更多的资本，且有利于提高环境质量等。另外，政府在征收环境税，内在化环境外部性的同时，还需要征收消费税、一次性转移等内在化代际外部性以实现社会最优配置。

Environmental Policy Analysis in an Overlapping-generations Model

This paper accentuates the environmental externality from production activities in an overlapping-generations model, analyzing capital dynamics with the competitive equilibrium and the comparative statics of each economic factor's effect on the economy and environment at the steady state. It shows that more rigid environmental policy can bring more capital stocks and the better environmental quality in the steady state. Moreover, the government should levy a pollution tax to internalize the environmental externality, and besides, indispensably need to design a tax scheme with consumption tax and a lump-sum transfer and so on to internalize the intergenerational externality for the social optimum.