共 11 条
- [5] R&D Performance in Chinese industry[J] . Gary H. Jefferson,Bai Huamao,Guan Xiaojing,Yu Xiaoyun.Economics of Innovation and New Technology . 2006 (4-5)
- [6] Sources of productivity growth in the Spanish pharmaceutical industry (1994–2000)[J] . Eduardo González,Fernando Gascón.Research Policy . 2004 (5)
- [8] International R&D spillovers[J] . David T. Coe,Elhanan Helpman.European Economic Review . 1995 (5)
- [9] A model for technical inefficiency effects in a stochastic frontier production function for panel data[J] . G. E. Battese,T. J. Coelli.Empirical Economics . 1995 (2)
- [10] Frontier production functions, technical efficiency and panel data: With application to paddy farmers in India[J] . G. E. Battese,T. J. Coelli.Journal of Productivity Analysis . 1992 (1)