共 6 条
[1]
UNCERTAINTY, INDUSTRIAL-STRUCTURE, AND THE SPEED OF R AND D
[J].
BELL JOURNAL OF ECONOMICS,
1980, 11 (01)
:1-28
[3]
DASGUPTA P, 1980, ERSCHOPFBARE RESSOUR
[4]
DASGUPTA P, 1977, INNOVATIONS MARKET S
[5]
DASGUPTA P, 1980, INVENTION INNOVATION
[6]
SCHMOOKLER J, 1962, J EC HIST, V22