Does intellectual monopoly stimulate or stifle innovation?

Angus Chu, Guido Cozzi and Silvia Galli ()

MPRA Paper from University Library of Munich, Germany

Abstract: This study develops an R&D-based growth model with vertical and horizontal innovation to shed some light on the current debate on whether patent protection stimulates or stifles innovation. We analyze the effects of patent protection in the form of blocking patents. We show that patent protection changes the direction of innovation by having asymmetric effects on vertical innovation (i.e., quality improvement) and horizontal innovation (i.e., variety expansion). Calibrating the model and simulating the transition dynamics, we find that strengthening the effect of blocking patents stifles vertical innovation and decreases economic growth but increases social welfare due to an increase in horizontal innovation. In light of this finding, we argue that in order to properly analyze the growth and welfare implications of patents, it is important to consider their often neglected compositional effects on vertical and horizontal innovation.

Keywords: economic growth; innovation; intellectual property rights (search for similar items in EconPapers)
JEL-codes: O31 O34 O40 (search for similar items in EconPapers)
Date: 2010-11, Revised 2011-05
New Economics Papers: this item is included in nep-com, nep-ino, nep-ipr, nep-pr~, nep-mic and nep-tid
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Related works:
Journal Article: Does intellectual monopoly stimulate or stifle innovation? (2012)
Working Paper: Does intellectual monopoly stimulate or stifle innovation? (2010)
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Persistent link: https://EconPapers.repec.org/RePEc:pra:mprapa:31019

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