3Durlauf, S, 1996. Neiberhood feedback' s, endogenous stratification, and income inequality. Proceeding of the Sixth International Symposium on Economic Theory and Econometrics, W. Barnett, G. Gandolfo, and C. Hillinger (Eds.) Cambridge University Press.
4Galor, O, and Zeira, J, 1993. Income distribution and macroeconomics. Review of Economic Studies, vol. 60, No. 4.
5Jamison D T and Lau L J 1982. Farmer education and farmer efficiency. Johns Hopkins University Press for the World Bank, Baltimore, Maryland. On Prior Development Strategy of Rural Education.
9Lockheed M,Jamison D, Lan L 1980 Farmer education and farmer efficiency:A survey. Econ. Dev. Cult. Change 29( 1 ) :37--76.
10Foster, Andrew, and Mark R. Rosenzweig, 1995, Learning by doing and learning from others: Capital and technical change in agriculture, Journal of Political Economy 103, P. 1176--1209.