共 7 条
[6]
The Stock Market's Valuation of R&D Investment During the 1980's[J] . Bronwyn H. Hall.The American Economic Review . 1993 (2)
[7]
PROPERTY-RIGHTS AND THE NATURE OF THE FIRM
[J].
JOURNAL OF POLITICAL ECONOMY,
1990, 98 (06)
:1119-1158