We show in a public goods experiment on three continents that conditional cooperation is a universal behavioral regularity. Yet, the number of conditional cooperators and the extent of conditional cooperation are much higher in the United States than anywhere else.

In a best-shot public good, where the provision level is determined by the highest contribution instead of the sum of all contributions, there is potential for waste and underprovision due to coordination failure. These failures are exacerbated when agents are identical because there is no focal...

Economists and psychologists have long argued the origin of wealth influences individual behavior. In a previous study (Cherry et al., 2005), we found the origin of endowment did not significantly affect behavior in linear public good games with summation contribution technology. In such games,...