5Alchian,A.A.and Demsetz,H..Production,Information Costs and Economic Organization.The American Economic Review,1972,62 (5):777 - 795.
6Baldursson,F.M.and von der Fehr,N..Vertical Integration and Long-term Contracts in Risky Markets.Working Paper,2007 (7).
7Barzel,Y..Measuring Cost and the organization of Markets.The Journal of Law and Economics,Vol.ⅩⅩⅡ (1),1982(4):27 -48.
8Carlton,D.W..Contracts,Price Rigidity,and Market Equilibrium.The Journal of Political Economy,1979,87(5):1034-62.
9Cheung,S.N.S..The Contractual Nature of the Firm.The Journal of Law and Economics,Vol.ⅩⅩⅥ (1),1983(4):1 -21.
10Daintith,T..The Design and Performance of Long-Term Contract.in Contracts and Organisation:Legal Analysis in the Light of Economic and Social Theory,Terence Daintith,Gunther Teubner (eds.),1986,de Gruyter,164 - 189.
