3Poole, N. D; Campo Gomis, E J D.; Julia Igual, J. F and Gimdnez, E V.: Formal Contracts in Fresh Produce Markets, Food Policy, Vol. 23, No. 2, 1998.
4Berdegue. J. A.; Reardon T.; Balsevich, E; Martinez, Anabel; Medina, Ruben; Aguirre, Marx and Echanove, Flavia: Supermarts and Michoacdn Guava Farmers in Mexico, Staff Paper Series of Department of Agricultural Economics, Michigan State University, 2006.
5Balsevich, E; Berdegue, J. and Reardon, T.: Supermarket, New.generation Wholesalers, Tomato Farmers, and NGOs in Nicaragua, Staff Paper Series of Department of Agricultural Economics, Michigan State University, 2006.
6Pingali, P.: Westernization of Asian Diets and the Transformation of Food Systems: Implications for Research and Policy, Food Policy, Vol. 32, No. 3, 2007.
7Coase, IL H.: The Nature of the Firm, Economica, Vol. 4, No. 11, 1937.
8Coase, R. H.: The Problem of Social Cost, Journal of Law and Economics, Vol. 3, Oct., 1960.
9Williamson, O. E.: Economic Organization: Firms, Markets and Policy Control, New York University Press, 1986.
10Williamson. O. E.: Transaction Cost Economics Meets Posnerian Law and Economics, Journal of Institutional Economics, Vol. 149, No. 1, 1993.
