2Breusch, T. and A. Pagan,"A Simple Test for Heteroscedasticity and Random Coefficent Variation ," Econometrica, 47,1979, pp. 1287-1294.
3Heckman, J. , 1976: "The Common Structure of Statistical Models of Truncation, Sample Selection and Limited Dependent Variables and a Simple Estimator for Such Models. " Annals of Economic and Social Measurement, 5 : 475-492.
4Li, Guo., Scott. Rozelle, and Loren Brandt. 1998. "Teaure, Land Rights, and Farmer Investment Incentives in China. " Agricultural Economics, 19(1998): 63-71.
5Lin, Justin Yifu. 1992. "Rural Reforms and Agricultural Growth in China. " American Economic Review, 82(1992) :34 - 51.
6McMillan, J.J. Walley and L.Zhu, 1989:"The Impact of China's Economic Reforms on Agricultural Productivity Gromth,"Journal of Political Economyv. 97(1989): 781-807
7Besley, T. 1995. "Property Rights and Investment Incentives: Theory and Evidence from Ghana."Journal of Political Economy, Vol. 103(5):903-937.
8Brandt, Loren, Jikun Huang, Guo Li, and Scott Rozelle, 2001. "Land Rights In Chins: Facts, Fictions, and Issues. " China Economic Review, (forthcoming).
