We show that a measure of reciprocity derived from the Berg et al. (1995) trust game in a laboratory setting predicts the reciprocal behavior of the same subjects in a real-world situation. By using the Crowne and Marlowe (1960) social desirability scale, we do not find any evidence that a...

In SIR models, infection rates are typically exogenous, whereas individuals adjust their behavior in reality. City-level data across the globe suggest that mobility falls in response to fear, proxied by Google searches. Incorporating experimentally validated measures of social preferences at the...

The literature on voluntary provision of public goods includes recent theoretical work on the formation of voluntary coalitions to provide public goods. Theory is ambiguous on the equilibrium coalition size and contribution rates. We examine the emergence of coalitions, their size, and how...

I study expertise acquisition in a model of trading under asymmetric information. I propose and implement a method to estimate the ratio of social to private marginal value of expertise. This can be decomposed into three sufficient statistics: traders' average profits, the fraction of bad assets...

Local governments can provide services with their own employees or by contracting with private or public sector providers. We develop a model of this quot;make-or-buyquot; choice that highlights the trade-off between productive efficiency and the costs of contract administration. We construct a...

In this paper we present the results from a "corruption game" (a dictator game modified so that the second player can accept a side payment that reduces the overall size of the pie). Dictators (silently) treated to have the possibility of taking a larger proportion of the recipient's tokens,...

Both conventional wisdom and leading academic research view pork barrel spending as antithetical to responsible policymaking in times of crisis. In this paper we present an alternative view. When agents are heterogeneous in their ideology and in their information about the economic situation,...

We present and experimentally test a mechanism that provides a simple, natural, low cost, and realistic solution to the problem of compliance with socially determined efficient actions, such as contributing to a public good. We note that small self-governing organizations often place enforcement...