基于1993-2008年中国地区层面的数据,以各省区腐败案件的发案数作为腐败的衡量指标,在经济增长与环境污染相互影响的联立模型中引入腐败因素,采用两阶段最小二乘估计法,较为系统地考察了腐败对中国环境污染的影响。研究结果表明,腐败既可以通过降低环境规制或扭曲环境政策直接加剧环境污染,也可以通过降低收入水平间接降低或增加环境污染。随着收入水平的变化,腐败对中国环境污染的影响呈现出先改善后恶化的动态变化,且受各地区收入水平差异的影响,腐败对东、中、西部地区环境的影响呈现出显著的梯阶差异。
Based on Chinese provincial data during 1993-2008, using the incidence of corruption cases to measure corruption level, through simultaneous model contains the mutual influence of corruption, income and environmental pollution, this article investigates the impact of corruption on Chinese environmental pollution. Results show that, on the one hand, corruption will women China's environment directly through reducing environment regulation or distorting environmental policy; on the other hand, corruption will reduce or increase environmental pollution indirectly through its negative effect on income growth. With the changes in income level, corruption will decrease environmental pollution at low income level, but increase environmental pollution at high income level. Affected by the difference between regional incomes, there is a significant ladder difference in east, central, and western areas.