Ethics is a field in which the gap between words and actions looms large. Game theory and the empirical methods it inspires look at behavior instead of the lip service people sometimes pay to norms. We believe that this special issue comprises several illustrations of the fruitful application of...

We examine geographical concentration, scientific quality, and editorial favoritism in the field of experimental economics. We use a novel data set containing all original research papers (N = 583) that exclusively used laboratory experiments for data generation and were published in the...

Phenomena like meat sharing in hunter-gatherers, self-sacrifice in intergroup conflicts, and voluntary contribution to public goods provision in laboratory experiments have led to the development of numerous theories on the evolution of altruistic in-group beneficial behavior in humans. Many of...