Empirical Implications of Sequential Innovation and Legal Action

Yasuhiro Arai and Fumitoshi Moriya

No 163, Working Paper Series from Center for Japanese Business Studies (HJBS), Graduate School of Commerce and Management Hitotsubashi University

Abstract: This article compares two hypotheses, sequential innovation and legal action, and theoretically obtains the testable implications to specify which hypothesis is crucial in empirical evidence. Our main results are that we distinguish between the two hypotheses based on i) whether the cross-term coefficient of the number of patents and the dummy of patent law are positive or negative and ii) whether the variance of the patent distribution is decreased.

Keywords: Intellectual Property Rights; Sequential Innovation; Multitask (search for similar items in EconPapers)
JEL-codes: D42 K39 L86 (search for similar items in EconPapers)
Pages: 16 pages
Date: 2013-02
New Economics Papers: this item is included in nep-ino, nep-ipr and nep-pr~
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