Using the government's intertemporal budget constraint, we quantify the contribution of returns paid on the U.S. government's debt portfolio to the evolution of the debt-to-GDP ratio. We show that announcements of unconventional monetary policy measures by the Federal Reserve between 2008.IV and...

There are two important rules to patent races: minimal accomplishment necessary to receive the patent and the allocation of the innovation benefits. We study the optimal combination of these rules. A planner, who cannot distinguish between competing firms in a multistage innovation race,...

This paper considers the credibility of social insurance arrangements in a dynamic moral hazard economy. A utilitarian planner selects an allocation for agents who experience privately observed taste shocks. When the planner can commit the optimal allocation exhibits an immiseration property:...

This paper considers optimal social insurance in a dynamic moral hazard economy. The existing literature has focussed on environments in which a planner and a population of agents share the same discount factor. A key finding is that agents are then almost surely immiserated; their welfare is...

The absence of self-control is often viewed as an important correlate of persistent poverty. Using a standard intertemporal allocation problem with credit constraints faced by an individual with quasi- hyperbolic preferences, we argue that poverty damages the ability to exercise self-control....