Theoritical and empirical study on stability, breaking, evolution of strategic alliance 并列题名：Theoritical and empirical study on stability, breaking, evolution of strategic alliance Theoretical and empirical research on Chinese enterprises' international strategic alliance 并列题名：Theoretical and empirical research on Chinese enterprises' international strategic alliance Theoretical and empirical study on commodity circulation space Theoretical and empirical study of synergy in regional innovation system Theoretical and empirical study on evolution of industrial organization Theoretical and empirical study on networking innovation of industrial cluster firms Theoritical and empirical study on water prices based on material balance model Theoretical and empirical study on cyclical company valuation