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

Author：　　Periodical： 　　Source：

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