When considering engaging in conflict to secure control of a resource, a group needs to predict the amount of post-conflict leakage due to infiltration by members of losing groups. We use this insight to explain why conflict often takes place along ethnic lines, why some ethnic groups are more...

We assess risk factors affecting the severity and dynamics of civil wars, departing from analyses focused primarily on static models of the effect of income on the extensive margin of conflict. Civil conflicts are shown to be persistent, but rarely do they become more severe in response to past...

Cumulative innovation is central to economic growth. Do patent rights facilitate or impede such follow-on innovation? This paper studies the effect of removing patent protection through court invalidation on the subsequent research related to the focal patent, as measured by later citations. We...

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...

We study the determinants of patent suits and their outcomes over the period 1978- 1999 by linking detailed information from the U.S. patent office, the federal court system, and industry sources. The probability of being involved in a suit is heterogeneous, being much higher for valuable...

This chapter develops a unified analytical framework, drawing on and extending the existing literature on the subject, for studying the role of property rights in economic development. It addresses two fundamental and related questions concerning the relationship between property rights and...

This paper explores the consequences of creating and improving property rights so that fixed assets can be used as collateral. This has become a cause célèbre of Hernando de Soto whose views are influential in debates about policy reform concerning property rights. Hence, we refer to the...

The composer has historically been at the top of the tree in the music industry; most royalties due to artists flow back to composers/songwriters rather than performers. Over the last few decades, the enactment of stronger performers’ rights has sought to redress this historical imbalance by...

The dominant explanatory/justificatory framework informing scholarly commentary on copyright law, policy and theory today – certainly in the US – is law and economics. From this perspective, copyright law exists to underpin markets in certain categories of ‘information good’ (copyright...

Per capita incomes across European regions are not equal and do not stay constant; regional income distributions uctuate over time. Such a process could have many possible limiting outcomes: complete equal- ity (convergence), stratication, and continually increasing inequality are but three...