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R&D, Patents, and Market Value Revisited: Is There A Second (Technological Opportunity) Factor?
Griliches, Zvi, Hall, Bronwyn H., Pakes, ArielVolume:
1
Language:
english
Journal:
Economics of Innovation and New Technology
DOI:
10.1080/10438599100000001
Date:
January, 1991
File:
PDF, 1.25 MB
english, 1991