3Amitage, S. Consequences of Mutuality for Building Societies [J] . Service Industry Journal, 1991, 11 :458-480.
4Amitage, S. and Kirk, P. The Performance of Proprietary Compared with Mutual Life Offices [J]. Service Industry Journal, 1994, 14:238-261.
5Mayers, David and Smith, Clifford. Contractual provisions, organizational structure, and conflict control in insurance markets [J]. Journal of Business, 1981, 54:73-99.
6Mayers, David and Smith, Clifford. Ownership structure across lines of property-casualty insurance[J]. Journal of Law and Economics, 1988, 31:351-278.
7Smith, Bruce and Stutzer, Michael. Adverse selection, aggregate uncertainty, and the role for mutual insurance contracts [J]. Journal of Business, 1990, 63: 493-511.
