共 39 条
[1]
CAVES R, 1984, AM EC REV MAY, P127
[3]
CAVES RE, 1980, MONOGRAPH SERIES FIN, V2
[4]
COMANOR W, 1986, J EC LIT SEP, P1178
[5]
COOL K, 1987, MANAGE SCI, P1102
[6]
DEHAEN P, 1983, NEW DRUG PARADE HIST
[9]
GRABOWSKI H, 1976, IMPACT PUBLIC POLICY, P47
[10]
HANSEN RW, 1980, GPB806 U ROCH GRAD S