5Ka Planandnavid, Norton. The effect of relative performance evaluation on earnings management :a game-theoretic approach[J]. Jounal of Accounting and Public Policy , 1992 (191).
6Tomah. Performance standards in incentive contracts. Journal of Accounting and Economics.1994(30).
7Robert Han. Managing Sustainable Competitive Advantage[J] (16) Assets and Skills: The Key to a California Management Review,2004.