碳交易试点政策与电力行业碳减排

低碳战略下，碳交易制度对于电力行业的碳排放量具有重要影响。以碳交易地方试点政策作为准自然实验，利用中国2006—2018年30个省际面板数据，采用双重差分模型检验了碳交易政策的实际影响效果。发现：（1）相对非试点地区，试点地区电力行业碳排放量具有更为迅速的下降趋势；（2）试点地区碳交易总量越高，交易额越大，则该地区电力行业碳排放量越低。结论表明：中国的碳交易试点制度对于地区电力行业碳排放具有控制作用。

Carbon Emissions Trading Pilot Policy and Power Industry Emissions Reductions

In the context of the low carbon strategy, carbon trading system plays an important role in reducing carbon emissions of the power industry. Using a sample of 30 provinces in China and local carbon trading pilot policies as a quasi-natural experiment, this paper examines the real effect of carbon emissions trading policies by difference in differences (DID) estimations. The study finds that, first, carbon emissions of power industry in pilot provinces decline more rapidly than that in non-pilot provinces. Second, the carbon emissions of the power industry in a province are negatively related to the total volume and amount of local carbon trading. These findings imply that China's carbon trading pilot system has a positive effect on carbon emissions reduction of local power industry.