(When) Do stronger patents increase continual innovation?
AbstractUnder continual innovation, greater patent strength expands innovating firms’ profit against imitation, but also shifts profit from current to past innovators. We show how the impact of patents on innovation, as determined by these two opposing effects, varies with industry characteristics. When the discount factor is sufficiently high, the negative profit division effect is negligible, and innovation monotonically increases in patent strength; otherwise, innovation has an inverted-U relationship with patent strength, and stronger patents are more likely to increase innovation when the discount factor or the fixed innovation cost is higher. We also show how the impact of patents on innovation may change with firms’ innovation capability and with the intensity of competition from imitators.
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Bibliographic InfoArticle provided by Elsevier in its journal Journal of Economic Behavior & Organization.
Volume (Year): 98 (2014)
Issue (Month): C ()
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Continual innovation; Patents; Patent strength; Profit expansion; Profit division;
Other versions of this item:
- Chen, Yongmin & Pan, Shiyuan & Zhang, Tianle, 2012. "(When) Do Stronger Patents Increase Continual Innovation?," MPRA Paper 40874, University Library of Munich, Germany.
- L1 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance
- O3 - Economic Development, Technological Change, and Growth - - Technological Change; Research and Development; Intellectual Property Rights
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