外商直接投资对空气污染影响的空间异质性分析——以中国150个城市空气质量指数(AQI)为例
姜磊, 周海峰, 柏玲

Spatial Heterogeneity Analysis of Impacts of Foreign Direct Investment on Air Pollution:Empirical Evidence from 150 Cities in China Based on AQI
Lei Jiang, Haifeng Zhou, Ling Bai
图3 FDI系数的空间分布
Fig.3 Spatial distribution of estimated coefficients of FDI by cities