共 9 条
- [1] INDUSTRIAL RESEARCH AND DEVELOPMENT, INTANGIBLE CAPITAL STOCKS, AND FIRM PROFIT RATES [J]. BELL JOURNAL OF ECONOMICS, 1978, 9 (02): : 328 - 343
- [5] KAMIEN MI, 1975, J ECON LIT, V13, P1
- [6] Leamer Edward E., 1978, WILEY SERIES PROBABI
- [7] LEAMER EE, 1983, AM ECON REV, V73, P31