最终需求侧中国工业环境效率测算及影响因素分解

The Calculation and Influencing Factors' Decomposition of Industrial Sectors' Environmental Efficiency from the View of Final Demand

本文基于WIOD数据库的数据,引入投入产出法测算了中国工业行业最终需求侧环境效率以及中国分行业对工业总体环境效率变动的贡献度,对分行业环境效率变动进行了增加值系数效应、中间需求效应、排放强度效应3种影响因素的SDA分解。得出结论：中国环境效率较低,改善环境质量刻不容缓;食品、饮料和烟草制造业等5个行业环境效率相对较低;对整体效率贡献率大的行业,有电气机械及器材制造业,通信设备计算机及其他电子设备制造业,交通运输设备制造业;1995~2009年环境效率变动中排放强度贡献率最大,增加值系数和中间需求贡献较小甚至为负。最后从行业层面提出了改善环境效率的政策建议。

Based on the WIOD database and input- output method, the demand- side environmental efficiency of industrial sectors were calculated and the comparison of horizontal was analyzed, then the contributions to the overall environmental efficiency changes of industrial sectors in China were measured, the added value coefficient effect, intermediate demand effect and emissions intensity effect of 3 kinds of influence factors of SDA decomposition to environmental efficiency changes was carried in this paper. We draw a conclusion that China＇s environmental efficiency is low, so it is urgent to improve the environmental quality; five industries such as food, beverages and tobacco manufacturing environment efficiency is relatively lower; electrical machinery and equipment manufacturing, communications equipment computer and other electronic equipment manufacturing, transportation equipment manufacturing＇s efficiency contribution to the whole industry is relatively high; the emissions intensity contribution is the largest, the added value coefficient and demand effect were smaller or even negative. Hnally, some suggestions from the industry level were provided to improve the efficiency of environment.