Renegotiation is a common practice in procurement auctions which allows for post-auction price adjustments and is nominally intended to deal with the problem that sellers might underestimate the eventual costs of a project during the auction. Using a combination of theory and experiments, we...

In recent years, a growing number of studies have researchers opting to use "real" effort designs for laboratory experiments where subjects complete an actual task to exert effort rather than using what is perhaps a more traditional design of stylized effort where subjects simply choose an...

General polygyny -- near universal marriage and polygyny -- is common in Africa. But why would men marry n wives for 1/n:th of the time instead of monogamously? Downsides include prolonged bachelorhood and a high degree of step-parenting. We point to the African slave trade which...