ISSN 2096-2533

CN 42-1881/F



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发布时间:2020-06-30作者:乔晓楠 王一博浏览次数:29

Differential Water Price and Its Impact on Water Pollution Control

Qiao Xiaonan and Wang Yibo





AbstractThe current water prices of industrial users is significantly higher than that of resident users, and there is a phenomenon of cross-subsidization of water prices. Whether the range and direction of the cross-subsidy should be adjusted is still controversial. This paper simulates and analyzes the economic performance, water consumption and pollutant emission under the circumstance of changing subsidy rates using a CGE model, and the conclusions are as follows. The cross-subsidization policy can help to control the water consumption of the industrial sector. If the direction of cross-subsidization is adjusted, the industrial water consumption will increase significantly. Therefore, the current cross-subsidization strategy of water price is still reasonable. In addition, considering the rate of sewage emissions and pollutant emissions are different among different sectors, it is efficient to set a differential water price to reduce the emissions of sewage, ammonia nitrogen and chemical oxygen demand. Therefore, using punitive electricity prices policy for reference, the implementation of punitive water prices for high pollution industries will be more conducive to structural adjustment and emission reduction and pollution control than adjusting the subsidy rate alone.

Keywords: Differential Water Prices; Cross-Subsidization of Water Prices; CGE Model; Punitive Water Prices








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