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The stock market valuation of research and development expenditures
Chan, Louis K. C., (1999)
A comparative analysis of information on national industrial R&D expenditures : special report
(1985)
Product innovation in diversified firms : the role of R&D centers and centralization
Cardinal, Laura B., (1996)
[Rezension von: Scherer, F. M., Innovation and growth]
Levin, Richard C., (1986)
Empirical studies of innovation and market structure
Cohen, Wesley M., (1989)
Firm size and R&D intensity : a re-examination
Cohen, Wesley M., (1987)