共 19 条
- [1] [Anonymous], 1991, WALL STREET J
- [2] Arrow K.J., 1962, RATE DIRECTION INVEN, P609, DOI DOI 10.1521/IJGP.2006.56.2.191
- [3] Baumol W., 1988, THEORY ENV POLICY
- [4] UNCERTAINTY, INDUSTRIAL-STRUCTURE, AND THE SPEED OF R AND D [J]. BELL JOURNAL OF ECONOMICS, 1980, 11 (01): : 1 - 28
- [8] Joskow P., 1985, J LAW ECON ORGAN, V1, P33
- [9] KATZ ML, 1987, AM ECON REV, V77, P402
- [10] MARKET-STRUCTURE AND INNOVATION - REFORMULATION [J]. QUARTERLY JOURNAL OF ECONOMICS, 1980, 94 (02) : 429 - 436