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