Contract enforceability in financial markets often depends on the aggregate actions of agents. For example, high default rates in credit markets can delay legal enforcement or reduce the value of collateral, incentivizing even more defaults and potentially affecting credit supply. We develop a...

We investigate the role of information technology (IT) in the collection of delinquent consumer debt. We argue that the widespread adoption of IT by the debt collection industry in the 1990s contributed to the observed expansion of unsecured risky lending such as credit cards. Our model stresses...

Empirical evidence suggests that widespread financial distress, by disrupting enforcement of credit contracts, can be self-propagatory and adversely affect the supply of credit. We propose a unifying theory that models the interplay between enforcement, borrower default decisions, and the...

This paper studies equilibrium selection in large coordination games played by heterogeneous agents, such as models of bank runs, currency attacks or technology adoption. Player payoffs are affected by the average action and the player’s type, as well as a global parameter reflecting economic...

In the data, most consumer defaults on unsecured credit are informal and the lending industry devotes significant resources to debt collection. We develop a new theory of credit card lending that takes these two features into account. The two key elements of our model are moral hazard and costly...

Technological advances in the insurance industry mean that insurers now may be better informed about underlying risks faced by individual consumers than consumers themselves. We evaluate the impact of these information frictions on welfare by combining demand elicitation surveys with insurance...