2Holmstrom,Begnt and Milgrom,Paul.Multitask principal-agent analyses:incentive contracts,asset ownership and job design[J].Journal of law,economics and organization,(7),s pting,1991.
3Alchian ,A. ,and H.Demsetz. Production ,Information Costs and Economic Organization [J]. American Economic Review,1972, (62) : 777-795.
4Holmstrom,B.. Moral Hazard in Team[J]. Bell Journal of Economics, 1982 ,(13) : 324-340.
5W.Macleod. Equity,Efficiency,and Incentives in Cooperative Teams [J]. In Advances in the Economic Analysis of Participatory and Labour Managed Firms, 1988, (3) :5-23.
