We conduct field experiments in a large real-world social network to examine why decision-makers treat their friends more generously than strangers. Subjects are asked to divide a surplus between themselves and named partners at varying social distances, but only one of these decisions is...

We study a small open economy characterized by two empirically important frictions - incomplete financial markets and an inability of the government to commit to policy. We characterize the best sustainable fiscal policy and show that it can amplify and prolong shocks to output. In particular,...

This paper designs a new equalization-aid formula based on fiscal gaps of local communities. Using conceptual analysis and simulations with Massachusetts data, the authors illustrate the tradeoffs that policymakers face in deciding on the policy variables in the formula and lay out several...

Rather than charging direct fees, banks often charge implicitly for their services via interest spreads. As a result, much of bank output has to be estimated indirectly. In contrast to current statistical practice, dynamic optimizing models of banks argue that compensation for bearing systematic...

Approximately half of credit card holders in the United States regularly carry unpaid credit card debt. These so-called quot;revolversquot; exhibit payment behavior that differs from that of those who repay their entire credit card balance every month. Previous literature has focused on the...

This paper develops new measures of environmental costs and local revenue capacity (that is, the ability of local governments to raise revenue), in order to form the basis of a new general-purpose aid formula for Massachusetts cities and towns. On the cost side, unlike previous studies, our...

We examine the effects of collateralized borrowing in a realistically parameterized life-cycle portfolio choice problem. We provide basic intuition in a two-period model and then solve a multi-period model computationally. Our analysis provides insights into life-cycle portfolio choice relevant...

We show that the introduction of a new asset affects the prices of previously existing assets in a market. Using data from 254 IPOs in emerging markets, we find that stocks in industries that covary highly with the industry of the IPO experience a larger decline in prices relative to other...

We combine information on social networks with medical records and survey data in order to examine how friends affect one's decision to get vaccinated against the flu. The random assignment of undergraduates to residential halls at a large private university allows us to estimate how peer...

A provocative paper by Shimer (2001) finds that state-level youth shares and unemployment rates are negatively correlated, in contrast to conventional assumptions about demographic effects on labor markets. This paper updates Shimer's regressions and shows that this surprising correlation...