Factors Restricting the Development of Our Country s Contractual Persistence Business in Life Insurance;

The consolidation of incomplete contracts,controlling rights and corporate governance mechanism;

The Incomplete Contract, Asset Specificity and the First-best Arrangement of the Firm Ownership;

Study on Formulation & Construction of Community Organization System in the Condition of Incomplete Contract;

The theoretical foundation of corporation governance structure is imperfect contract between agency by agreement and enterprise.

Personal credit fault has become more and more outstanding in president activities because of individual opportunism, unsymmetrical information and incomplete contracts etc.