[EJ-05-4]Economies of Scale and Scope and the Economic Efficiency of China’s Agricultural Research System

作者：　　期刊： 　　来源：

作者：Jin, Songqing, Scott Rozelle, Julian Alston and Jikun Huang　　期刊：International Economic Review, Vol. 46, No. 3, August 2005, pp: 1033-1057.　　来源： ccap