共 12 条
- [11] On the Interaction between the Quantity and Quality of Children[J] . Gary S. Becker,H. Gregg Lewis.Journal of Political Economy . 1973 (2)
- [12] The Transition Path in Privatizing Social Security .2 Feldstein,M. S,Samwick,A. A. NBER WorkingPaperNo.5761 . 1996