We develop a dynamic structural model of patent screening incorporating incentives, intrinsic motivation, and multi … new measure of patent distance that enables us to study strategic decisions by applicants and examiners. Our model … quality of screening. We quantify the social costs of patent screening and find that the annual social cost of the existing …

Critics claim that patent screening is ineffective, granting low-quality patents that impose unnecessary social costs …. We develop an integrated framework, involving patent office examination, fees, and endogenous validity challenges in the … courts, to study patent screening both theoretically and quantitatively. In our model, some inventions require the patent …

cumulative innovation. This paper studies the effects of strategic patenting on R&D, patenting and market value in the computer … software industry. We focus on two key aspects: patent portfolio size which affects bargaining power in patent disputes, and … the fragmentation of patent rights (.patent thickets.) which increases the transaction costs of enforcement. We develop a …

We study how fragmentation of patent rights (‘patent thickets’) and the formation of the Court of Appeal for the … Federal Circuit (CAFC) affected the duration of patent disputes, and thus the speed of technology diffusion through licensing …. We develop a model of patent litigation which predicts faster settlement agreements when patent rights are fragmented and …

cumulative innovation. This paper studies the effects of strategic patenting on R&D, patenting and market value in the computer … software industry. We focus on two key aspects: patent portfolio size which affects bargaining power in patent disputes, and … the fragmentation of patent rights (.patent thickets.) which increases the transaction costs of enforcement. We develop a …

This paper studies how patent rights and price regulation affect how fast new drugs are launched in different countries … duration and content of patent and price control regimes. Price regulation strongly delays launch, while longer and more … extensive patent protection accelerates it. Health policy institutions, and economic and demographic factors that make markets …