6Elizabeth M M Q Farina, Thomas Reardon. Agrifood Grades and Standards in the Extended Mercosur: Their Role in the Changing Agrifood System [J].American Journal of Agricultural Economics,2000,82(5): 1170-1176.
7Giovannucci D,Reardon T.Understanding Grades and Standards and How to Apply Them, in Giovannucci D [A].A Guide to Developing Agrieultural Markets and Agro-enterprises[C].Worhl Bank,Washington DC, 2000.
8Reardon T,Codron J M,Busch L,et al.Global Change in Agrifood Grades and Standards: Agribusiness Strategic Responses in Developing Countries [J].lnternational Food and Agribusiness Management Review,2001 (3):329-334.
9Shavll S.Economic analysis of accident law[M].Boston:Harvard University press,1987.
10Annandale D.Mining company approaches to environmental approvals regulation:a survey of seniorenvironment managers in Canadian[J] Research Policy,2000(26):1382-1389.