4Ostrom E. A General Framework for Analyzing the Sus-tainability of Social-Ecological System[J].SCIENCE,2009,(08):419-440.
5Ostrom E. Beyond Markets and States:Polycentric Gov-ernance of Complex Economic Systems[J].American Economic Review,2010,(03):641-672.
6Fischbacher, Gachter. Social preferences, beliefs and the dynamics of free riding in public goods experiments[J].The American Economic Review,2010,(01).