Patent protection under endogenous product differentiation

Arijit Mukherjee

Discussion Paper Series from Department of Economics, Loughborough University

Abstract: It is generally believed that a weak patent protection makes the consumers and the society better off compared to a strong patent protection by increasing the intensity of competition if the weak patent protection does not affect innovation. We show that this conclusion may not hold if the innovator can take other non-production strategies, such as product differentiation, to reduce the intensity of product-market competition. A weak patent protection may reduce consumer surplus and social welfare by inducing product differentiation by the innovator. We show that the type of product-market competition and the market demand function play important roles in this respect. Hence, there can be an argument for a strong patent protection even if it does not affect innovation.

Keywords: Patent protection; Product differentiation; Welfare (search for similar items in EconPapers)
JEL-codes: D21 D43 L13 O34 (search for similar items in EconPapers)
Date: 2013-07, Revised 2013-07
New Economics Papers: this item is included in nep-com, nep-ind, nep-ino, nep-ipr, nep-pr~ and nep-tid
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Journal Article: Patent protection under endogenous product differentiation (2014)
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