关键词: 标准, 专利联盟, 双重边际, 敲竹杠

Abstract: Abstract: Using game theory method, this paper study the formation and stabilization problem of patent pools. According to the fact that patent pools are closely aligned with standard in nowadays, we confirm that ex-post patent pools can not be sustainable, due to the motivations of patent holders to freeing riding and holding up downstream producers. While during the standard setting process, patent holders， joint commitment to licensing royalty can lead to ex-ante patent pools，information. As a result of non-cooperative game,ex-ante patent pools are self-enforcing and can improve social welfare.