中文摘要：

以一个动态追赶模型来模拟EC和EKC的倒U形,并进一步确认收入不公平也与环境破坏的正向关系的可能,模拟结果显示收入差距和环境质量的关系在追赶初期正向关系更为显著,对CO2、SO2和基尼系数的跨国数据检验证实了作者模型的判断,CO2体现出的EKC是一个先减速增加、后加速增加,然后减速下降的过程,SO2则是一个先减速增加,后加速增加的过程,但这一结果并不妨碍整体简单回归的凹性,这也是常规凹性检验中所忽略的部分;同时在两种污染物对基尼系数的回归中也发现了模型中出现的正向关系,即环境恶化与收入差距扩大并存。

英文摘要：

The environmental Kuznets curve assumes an inverted U-shaped relation between environmental damage and income level.In addition to income levels,the inequality of income is positively related to environmental degradation.We provide an additional argument,based on dynamic catch-up model,including KCEKC and a measure of income dispersion in empirical analysis.At the early stage of catch-up,income inequality is positively related to total environmental damage and test of international data of CO2,SO2 and Gini Coefficient confirms our model.CO2 shows the process of slow,accelerating increasing and slow decreasing,while SO2 is slow and accelerating increasing.Results did not go against the simple regression.It indicates that the EKC and the relationship between income inequality and the environment are coinciding with our model.