“经济人”假说和“自我决定”论是美国学者用以反对公益诉讼原告资格扩张的两种主要学说。从反对者提出的各种理由来看,这三种学说都不能为限制原告资格的扩张提供正当性说明,这从反面说明了公益诉讼原告资格扩张的可能性。 The “economic man” hypothesis and “self-determination” theory are the two main theories that American scholars use to oppose the expansion of plaintiff’s eligibility for public interest litigation. Judging from various reasons put forward by the opponents, none of these three theories can justify the restriction on the expansion of plaintiff qualification, which on the contrary shows the possibility of plaintiff qualification expansion in public interest litigation.