5Hueth B, Marcoul P. Information sharing and oligopoly in agri- cultural markets: the role of the cooperative bargaining assoeia- tion[J]. American Journal of Agricultural Economics, 2006, 88 (4) : 866-881.
6Saenger C, Qaim M, Torero M, Viceisza A. Contract farm- ing and smallholder incentives to produce high quality., experi-mental evidence from the Vietnamese dairy sector[J]. In 2012 International Association of Agricultural Economists Confer- ence, August 18-24, 2012, Foz do Iguacu, Brazil.
7Deb R, Suri T. Endogenous emergence of credit markets: Con- tracting in response to a new technology in Ghana [J]. Journal of Development Economics, 2013, 101: 268-283.
8Rehber E. Vertical coordination in the agro-food industry and contract farming: A comparative study of Turkey and the USA [R]. University of Connecticut, Food Marketing Policy Center, 2000.
9Sivramkrishna S, Jyotishi A. Monopsonistic exploitation in con- tract farming: articulating a strategy for grower cooperation[J]. Journal of International Development, 2008, 20(3): 280-296.
10Harou A, Walker T. The Pineapple Market and the Role of Co- operatives. Working Paper, Cornell University,2010.