A dynamic model of patent portfolio races

被引：9

作者：

Denicolo, Vincenzo ^{[1
]}

Zanchettin, Piercarlo ^{[2
]}

机构：

[1] Univ Bologna, Dept Econ, I-40126 Bologna, Italy

[2] Univ Leicester, Leicester LE1 7RH, Leics, England

来源：

ECONOMICS LETTERS | 2012年 / 117卷 / 03期

关键词：

Patent portfolios; Incremental innovation; Cross-licensing; Differential game;

D O I：

10.1016/j.econlet.2012.07.015

中图分类号：

F [经济];

学科分类号：

02 ;

摘要：

We propose a dynamic model of a patent portfolio race in an industry in which innovation is incremental. Two firms compete in prices and in research. We study the Markov perfect (closed-loop) equilibrium of the resulting differential game, identifying a steady state in which firms compete neck and neck. In this equilibrium, innovation rates are inefficiently high from the firms' viewpoint. The firms are caught in a prisoners' dilemma and so have an incentive not to enforce their patents aggressively in order to coordinate on a more "cooperative" equilibrium. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：924 / 927

页数：4

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