Patents and R&D at the firm level: A first report |
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| Authors: | Ariel Pakes Zvi Griliches |
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| Affiliation: | The Hebrew University, Jerusalem, Israel;Harvard University, Cambridge, MA 02138, USA |
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| Abstract: | The U.S. Patent Office has recently computerized its data base. Thus an easily accessible rather direct indicator of the inventive output of firms is now available. We examine the sense in which the patent measure is a ‘good’ indicator of inventive activity by relating it to the R&D expenditures of a cross-section of 121 firms over an 8 year period. |
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