The concept of self-centered fairness, as embodied in ERC preferences, organizes the data from the two-person ultimatum and dictator game, as well as the Gthvan Damme game, the market game, the dictator game with multiple recipients, and the fixed total sacrifice effect as observed in this...

Payments and discounts incentivize participation in many transactions about which people know little, but can learn more --- payments for medical trial participation, signing bonuses for job applicants, or price rebates on consumer durables. Who opts into the transaction when given such...