参考文章(3)
Hayne E Leland, On the existence of optimal policies under uncertainty Journal of Economic Theory. ,vol. 4, pp. 35- 44 ,(1972) , 10.1016/0022-0531(72)90160-3
R.T Rockafellar, Measurable dependence of convex sets and functions on parameters Journal of Mathematical Analysis and Applications. ,vol. 28, pp. 4- 25 ,(1969) , 10.1016/0022-247X(69)90104-8
John W. Pratt, Risk Aversion in the Small and in the Large Econometrica. ,vol. 32, pp. 122- ,(1964) , 10.2307/1912743