共 11 条
- [5] Ownership, Government R&D, Private R&D, and Productivity in Chinese Industry[J] . Albert Guangzhou Hu.Journal of Comparative Economics . 2001 (1)
- [7] Demand and Supply Influences in R & D Intensity and Productivity Growth[J] . The Review of Economics and Statistics . 1988 (3)
- [8] Innovation, Market Structure, and Firm Size[J] . The Review of Economics and Statistics . 1987 (4)
- [9] R & D Appropriability, Opportunity, and Market Structure: New Evidence on Some Schumpeterian Hypotheses[J] . Richard C. Levin,Wesley M. Cohen,David C. Mowery.The American Economic Review . 1985 (2)
- [10] Market Structure and the Employment of Scientists and Engineers [J]. AMERICAN ECONOMIC REVIEW, 1967, 57 (03): : 524 - 531