9Fama E, French K. Testing trade-off and pecking order predictions about dividends and debt [ J ]. Review of Financial Studies ,2002 ( 15 ) : 1-34.
10Nengjiu J, Robert P, Allen P. Horses and rabbits? Trade-Off Theory and optimal capital structure [ J ]. Journal of Financial and Quantitative Analysis,2005 (40) : 259-281.