共 17 条
[2]
CLARK KB, 1984, AM ECON REV, V74, P893
[5]
DEWATRIPONT M, 1986, THESIS HARVARD U
[7]
EXIT BARRIERS ARE ENTRY BARRIERS - THE DURABILITY OF CAPITAL AS A BARRIER TO ENTRY
[J].
BELL JOURNAL OF ECONOMICS,
1980, 11 (02)
:721-729
[8]
FREEMAN RB, 1983, NBER1164 WORK PAP