5Johnson N,Suarez R,Lundy M.The Importance of Social Capital in Colombian rural Agro-enterprises[A].In:Proceedings of the 25th International Conference of Agricultural Economists(IAAE)[C].Durban,South Africa,2003,8.
6Rotter J.Interpersonal Trust,Trustworthiness and Gullibility[J].American Psychologist,1980,1:1-7.
7Granovetter M.Economic Action and Social Structure:The Problem of Embeddedness[J].American Journal of Sociology,1985(9):491.
8Akerlof G.The Market for"Lemons":Quality Uncertainty and the Market Mechanism[J].The Quarterly Journal of Economics,1970,84(3):488-500.
