居民散煤燃烧，是我国许多地区空气污染和温室气体排放的重要来源。京津冀地区协同发展已成为重大国家战略，而京津冀作为空气污染重灾区，空气污染治理的联防联控也已成为国家和社会的共识。自2013年起，京津冀地区各级政府推出多项散煤治理措施（下文统称为“减煤换煤”政策），旨在通过“煤改电”、“煤改气”、和“优质燃煤替代”减少居民散煤消费。为实现散煤治理措施的有效实施和推广，政策制定者需全面了解居民散煤使用情况并对现有政策的实施效果进行精确评估。因此，本课题以京津冀地区居民为研究对象，通过大范围入户问卷调查收集详尽的居民散煤使用信息，从而对京津冀地区居民散煤使用模式进行系统分析，同时利用计量模型量化评估“减煤换煤”政策对居民散煤和其他替代能源消费的影响，并估算该政策的社会福利影响，在此基础上，识别有效的散煤治理措施及其作用途径，为散煤治理政策的改善和推广提供坚实的理论基础和实证依据。

In China, the residential coal combustion has become one of the main sources of greenhouse gas emission and local airborne pollutants. For the Beijing-Tianjin-Hebei Region, one of the most heavily polluted area in China, the coordination in economic growth and air pollution abatement has become a national strategy. Since 2013, the governments of this region have adopted various measures to reduce and regulate the use of residential coal, which is called the “Replace Coal Upgrade Coal” policy, including “coal to electricity”, “coal to gas”, and “upgrade coal”. For the effective implementation of the policy, this project aims to investigate residential coal consumption behavior through large-scale and consecutive household surveys, and use econometric methods to analyze the effects of the policy on coal consumption and social welfare.