共 21 条
- [1] AGRAWAL A, 2002, PUBLIC SECTOR SCI ST
- [2] [Anonymous], PHARM INNOVATION
- [3] Cockburn IM, 1998, J IND ECON, V46, P157
- [5] COST OF INNOVATION IN THE PHARMACEUTICAL-INDUSTRY [J]. JOURNAL OF HEALTH ECONOMICS, 1991, 10 (02) : 107 - 142
- [7] Gompers P., 1999, VENTURE CAPITAL CYCL
- [8] Can patents deter innovation? The anticommons in biomedical research [J]. SCIENCE, 1998, 280 (5364) : 698 - 701
- [10] JUDD K, 2002, 1344 NW U