Perhaps the main difference of opinions between Regibeau & Rockett and us is that we consider the patent thicket to be a real problem in many technology sectors, and one which leads to excessive strategic behavior and litigation. Lorenzo Coppi & Stefano Trento (Compass-Lexecon)

We study competitive interaction between a profit-maximizing firm that sells software and complementary services, and a free open-source competitor. We examine the firm's choice of business model between the proprietary model (where all software modules are proprietary), the open-source model...

type="main" <p>We present a model of standard setting and patent-pool formation. We study the effects of alternative standard-setting and pool-formation rules on technology choice, prices, and welfare. We find three main results. First, we show that allowing patent pools may reduce welfare when...</p>

We present a model of industry equilibrium to study the coexistence of open-source and proprietary firms. Two novel aspects of the model are (i) participation in open source arises as the optimal decision of profit-maximizing firms, and (ii) open-source and proprietary firms may (or may not)...