共 39 条
[1]
*AM MED ASS, DRUG EV
[2]
BAGWELL K, 1991, AM ECON REV, V81, P224
[3]
NEW PRODUCT GROWTH FOR MODEL CONSUMER DURABLES
[J].
MANAGEMENT SCIENCE SERIES A-THEORY,
1969, 15 (05)
:215-227
[4]
CAVES RE, 1991, BROOKINGS PAPERS EC, P3
[5]
COMANOR WS, 1986, J ECON LIT, V24, P1178
[6]
COMANOR WS, 1995, STRUCTURE AM IND, P177
[9]
EATON BC, 1989, HDB IND ORG, V1, P723, DOI DOI 10.1016/S1573-448X(89)01015-0
[10]
*FACTS COMP DIV, 1977, DRUGS FACTS COMP