Chu, Angus C. and Cozzi, Guido and Galli, Silvia (2010): Does intellectual monopoly stimulate or stifle innovation?
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This study develops an R&D-based growth model that features both vertical and horizontal innovation to shed some light on the current debate on whether patent protection stimulates or stifles innovation. Specifically, we analyze the growth and welfare effects of patent protection in the form of profit division between sequential innovators along the quality ladder. We show that patent protection has asymmetric effects on vertical innovation (i.e., quality improvement) and horizontal innovation (i.e., variety expansion). Maximizing the incentives for vertical (horizontal) innovation requires a profit-division rule that assigns the entire flow profit to the entrant (incumbent) of a quality ladder. In light of this finding, we argue that in order to properly analyze the growth and welfare implications of patent protection, it is important to disentangle its different effects on vertical and horizontal innovation.
|Item Type:||MPRA Paper|
|Original Title:||Does intellectual monopoly stimulate or stifle innovation?|
|Keywords:||economic growth; innovation; intellectual property rights|
|Subjects:||O - Economic Development, Technological Change, and Growth > O3 - Technological Change; Research and Development; Intellectual Property Rights > O34 - Intellectual Property Rights
O - Economic Development, Technological Change, and Growth > O3 - Technological Change; Research and Development; Intellectual Property Rights > O31 - Innovation and Invention: Processes and Incentives
O - Economic Development, Technological Change, and Growth > O4 - Economic Growth and Aggregate Productivity > O40 - General
|Depositing User:||Angus C. Chu|
|Date Deposited:||24. Feb 2011 18:34|
|Last Modified:||12. Feb 2013 11:13|
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