7Gerald,Feltham and Martin,H.Wu.Incentive Efficiency of Stock versus Options[J].Review of Accounting Studies,2001(6).
8Michael C. Jensen, William H. Meckling. Theory of the firm: Managerial behavior, agency costs and own- ership structure[ J ]. Journal of Financial Economics,1976(4) :3 - 13.
9Randall Morck. Alternative Mechanisms for Corporate Control [ J ]. The American Economic Review, 1989 (4) :79 -90.
10B. S. Barbaz, N. R. Hall & J. M. Liebman. Antagonism of morphine analgesia by CCK - 8 - S does not extend to all assays nor all opiate analgesics [ J ]. PEPTIDES, 1988(6) :09-29.