An infinite game is approximated by restricting the players to finite subsets of their pure strategy spaces. A strategic approximation of an infinite game is a countable subset of pure strategies with the property that limits of all equilibria of all sequences of approximating games whose finite...

We quantify the fiscal multipliers in response to the American Recovery and Reinvestment Act (ARRA) of 2009. We extend the benchmark Smets-Wouters (2007) New Keynesian model, allowing for credit-constrained households, the zero lower bound, government capital and distortionary taxation. The...

This paper uses a large natural field experiment to identify the effects of formal savings on interhousehold transfers in villages, and the spillover impacts of service-expansion on de facto ineligibles residing in the same community. Despite widespread interest in microfinance, spillover...

If people face cognitive limitations or biases that lead to financial mistakes, what are possible ways lawmakers can help? One approach is to remove the option of the bad decision; another approach is to increase financial education such that individuals can reason through choices when they...

This paper derives necessary and sufficient conditions for nonparametric transformation models to be (i) correctly specified, and (ii) identified. Our correct specification conditions come in a form of partial differential equations; when satisfied by the true distribution, they ensure that the...

Recent analyses of transaction-level datasets have generated new stylized facts on price setting and greatly influenced the empirical macroeconomics literature. This work has uncovered marked heterogeneity in price stickiness, demonstrated that even non-zero price changes do not fully "pass...

Funding for medical residencies has been capped by US Congress since the late 1997, and has resultantly become an increasingly limiting factor of the doctor supply in the US. The resulting impact of Medicare residency policy on managed care firms, especially private insurers has been unclear....

We generalize Athey's (2001) and McAdams' (2003) results on the existence of monotone pure strategy equilibria in Bayesian games. We allow action spaces to be compact locally-complete metrizable semilattices and type spaces to be partially ordered probability spaces. Our proof is based upon...

We provide general conditions under which principal-agent problems admit mechanisms that are optimal for the principal. Our result covers as special cases those in which the agent has no private information –i.e., pure moral hazard –as well as those in which the agent’s only action...

We develop a two-sided matching model with positive sorting, divorce and remarriage. Match quality for each couple is revealed ex post and those with poor draws divorce. Competition determines lifetime expected utilities but per-period utilities depend on the laws that govern the distribution of...