This paper specifies and estimates a structural dynamic model of consumer demand for new and used durable goods. Its primary contribution is to provide an explicit estimation procedure for transaction costs, which are crucial to capturing the dynamic nature of consumer decisions. In particular,...

Using new data on citations to university patents and scientific publications, and measures of distance based on Google maps, we study how geography affects university knowledge diffusion. We show that knowledge flows from patents are localized in two respects: they decline sharply with distance...

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...

This paper studies the incidence of civil war over time. We put forward a canonical model of civil war, which relates the incidence of conflict to circumstances, institutions and features of the underlying economy and polity. We use this model to derive testable predictions and to interpret the...

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...

One of the most striking institutional features of many less developed countries is that their militaries are closely involved in policy-making, potentially having a large impact on economic outcomes. This paper examines the role of the military in setting policy. For this purpose it develops...

Tenured public officials such as judges are often thought to be indifferent to the concerns of the electorate and, as a result, potentially lacking in discipline but unlikely to pander to public opinion. We investigate this proposition empirically using data on promotion decisions taken by...

We model the coordination of specialised tasks inside an organisation as quot;attribute matchingquot;. Using this method, we compare the performance of organisational forms (M-form and U-form) in implementing changes such as innovation and reform. In our framework, organisational forms affect...

Bewley's condition on production sets, imposed to ensure the existence of an equilibrium price density when L? is the commodity space, is weakened to allow applications to continuous-time problems, and especially to peak-load pricing when the users' utility and production function are Mackey...

This paper studies the design of law-making and law enforcement institutions based on the premise that law is inherently incomplete. Under incomplete law, law enforcement by courts may suffer from deterrence failure, defined as the social-welfare loss that results from the regime's inability to...