Regional Open Policy and Firms'Pollution Emissions:Evidence from the Establishment of Chinese Development Zones
Based on the quasi natural experiment of the establishment of Chinese development zones,this study investigates the influence of regional open policy on firms'pollution emission by matching the da-ta of Chinese annual survey of industrial firms and Chinese industrial enterprise pollution database from 1998 to 2007.The empirical results show that the establishment of development zones significantly reduces the firms'pollution emission.And this conclusion remains valid after the parallel trend test,placebo test and other robustness tests.The mechanism analysis shows that front-end control and terminal treatment are the main reasons for the decrease of firms'pollution emission.Specifically,the front-end control is mainly embodied in the reduction of heavy pollution energy use,the increase of clean energy use and the improve-ment of technological innovation.Terminal treatment indicates that the development zone increases firms'pollution treatment capacity,pollution treatment rate,and pollution treatment volume.Heterogeneity analysis shows that the establishment of development zones has a more significant effect on reducing pollution emis-sions of firms with high productivity and high industrial R&D intensity.
development zonespollution emissionsclean energytechnological innovationpollution treatment
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