In an experiment, a group of strangers was randomly divided in pairs to play a prisoners’ dilemma; this process was indefinitely repeated. Cooperation did not increase when subjects could send public messages amounting to binding promises of future play.

We observe that identification of the discount rate from experimental data requires an assumption about the consumption period, the length of time over which a payment will be turned into utility-providing consumption. We show that the optimal consumption period is substantially longer than...

We use the strategy method to classify subjects into cooperator types in a large-scale online Public Goods Game and find that free riders spend more time on making their decisions than conditional cooperators and other cooperator types. This result is robust to reversing the framing of the game...

The assumption that individual preferences are rational and consistent with standard economic theory is often appropriate, but may be optimistic if consumers are uncertain about either their preferences or how the market operates. Both sources of uncertainty may present themselves in lab...

We analyse bonus payments for officials, who transfer payments truthfully to the government rather than collecting bribes. We show that optimised bonus payments are always beneficial to the government, making them a more effective anti-corruption measure than simple wage increases.

Using nationwide county-level longitudinal data, we show that recent declines in housing prices are associated with an increased utilization of antidepressant prescriptions among the near elderly. Our results persist in difference-in-difference models using either all non-antidepressant drugs or...

Shotgun clauses are commonly included in the business agreements of partnerships and limited liability companies (LLCs), but the role of offeror typically remains unassigned. In a common-value, one-sided asymmetric information setting, unequal and inefficient outcomes occur with an unassigned...

In a one-shot Prisoners’ dilemma experiment, female participants are highly sensitive to the social frame. Male participants are not.

We treat instructions as an experimental variable to study how their format affects the participants’ comprehension, speed of play, and experimental behavior. We find that, in a public good game, short on-screen instructions requiring forced inputs improve on subjects’ comprehension and...

We investigate parochial altruism, the combination of in-group altruism and out-group hostility, in an experimental conflict game preceded by a prisoner’s dilemma. Our data are consistent with parochial altruism, but cannot be explained by in-group pro-sociality or out-group hostility alone.