9Ang,J.S.,R.A.Cole,J.W.Lin.2000.Agency Costs and Ownership Structure,Journal of Finance,55(1):81-106.
10Baber,W.R.,S.N.Janakiraman,S-H.Kang.1996.Investment Opportunities and the Structure of Executive Compensation.Journal of Accounting and Economics,21(3):297-318.