Patent Quality and Research Productivity: Measuring Innovation with Multiple Indicators
Year of publication: |
2004
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Authors: | Lanjouw, Jean O. ; Schankerman, Mark |
Published in: |
The economic journal : the journal of the Royal Economic Society. - Oxford [u.a.] : Blackwell, ISSN 1468-0297, ZDB-ID 30259. - Vol. 114.2004, 495, p. 441-465
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