We assess changes to oral argument at the U.S. Supreme Court precipitated by the COVID-19 pandemic and the degree to which those changes persisted once the justices became used to the new procedures. To do so, we examine whether key attributes of these proceedings changed as the Court...

We develop and analyze a tractable empirical model for strategic network formation that can be estimated with data from a single network at a single point in time. We model the network formation as a sequential process where in each period a single randomly selected pair of agents has the...

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The costs of comprehensively genotyping human subjects have fallen to the point where major funding bodies, even in the social sciences, are beginning to incorporate genetic and biological markers into major social surveys. How, if at all, should economists use and combine molecular genetic and...

Research on happiness has produced valuable insights into the sources of subjective well-being that are of importance to economics. A major nding from this literature is that people exhibit a "baseline" level of happiness that shows persistent strength over time. Here we explore the extent to...

Following Axelrod's tournaments for strategies in the repeat-play prisoner's dilemma, we ran a ``tournament of party decision rules'' in a dynamic agent-based model of party competition. We asked researchers to submit rules for selecting party positions in a two-dimensional policy space, pitting...

Common law evolves not only through the outcomes of cases but also through the reasoning and citations to precedent employed in judicial opinions. We focus on citations to precedent by the U.S. Supreme Court. We demonstrate how strategic interaction between justices during the Court’s...

The endowment effect, the tendency to value possessions more than non-possessions, is a well known departure from rational choice and has been replicated in numerous settings. We investigate the universality of the endowment effect, its evolutionary significance, and its dependence on...

Using a discovery and replication sample from a U.S. representative data set, we show that a functional polymorphism on the MAOA gene is associated with credit card borrowing behavior. For the combined sample of approximately 12,000 individuals we find that having one or both MAOA alleles of the...