[摘　要]　首先介绍了信息不对称理论及节能建筑市场信息不对称现象产生的原因，然后分析了房地产开发商与消费者之间的信息不对称和逆向选择问题，得出建筑能效标识是政府解决节能建筑市场失灵的重要手段，最后阐述了我国建立建筑能效标识制度的作用和制度设计以及实施方式。
[关键词]　节能建筑；信息不对称；能效标识
Abstract: This paper first introduced the theory of asymmetric information and the reason of building energy efficiency market's information asymmetry and manifestations. Then it analysed the real estate developers and consumers of information asymmetry and adverse selection，and put forward that building energy efficiency solution to identify energy-saving construction is an important means of solving market failure， and finally elaborated the function, system design and implementation way of establishing the construction energy efficiency marking system in China.
Key words: energy efficiency building; information asymmetry; energy efficiency marking
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