5J R Hicks. A Theory of Economic History [M]. Oxford: Oxford University Press, 1969.
6S. Boucher, Catherine Guirkinger. Risk, Wealth, and Sectoral Choice in Rural Credit Markets[J]. American Journal of Agri- cultural Economics, 2007,89(4): 991 - 1 004.
7K Hoff, Joseph Eugene Stiglitz. Introduction: Imperfect Infor- mation and Rural Credit Markets Puzzles and Policy Perspec- lives [J]. World Bank Economic Review, 1990, 4(3): 235- 250.
8Kochar A. Does Lack of Access to Fomal Credit Constrain Ag- ricultural Production? Evidence from the Land Tenancy Mar- ket in Rural India [J]. American Journal of Agricultural Eco- nomics, 1997,79(3) : 754 - 763.
9Mushinski, D. , An Analysis of Loan Offer Functions of Banks and Credit Unions in Guatemala [J]. Journal of Development Studies, 1999,36(2): 88 - 112.