Patent Renewals and R&D Incentives

Francesca Cornelli and Mark Schankerman

No 1971, CEPR Discussion Papers from Centre for Economic Policy Research

Abstract: In a model with moral hazard and assymmetric information, we show that it can be welfare-improving to differentiate patent lives when firms have different R&D productivities. A uniform patent life provides excessive R&D incentive to low-productivity firms, and too little to high ones. The optimally differentiated patent scheme can be implemented through a menu of patent lives (or renewals) and associated fees. We characterize the optimal mechanism, and use simulation analysis to compare it with existing patent renewal systems and to illustrate the potential welfare gains from the optimal policy.

Keywords: Mechanism Design; patent protection; patent renewals; R&D (search for similar items in EconPapers)
JEL-codes: L51 O31 O34 (search for similar items in EconPapers)
Date: 1998-09
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