Behavioral Economics: An interdisciplinary field that combines insights from psychology, economics, and other social sciences to understand how people make decisions and how those decisions deviate from the assumptions of traditional economic theory.
Reciprocity: The practice of exchanging things with others for mutual benefit, often used to describe the expectation that people will respond to positive actions with positive actions and to negative actions with negative actions.
Investor-Trustee Relationship: The dynamic between the two players in the trust game, where the investor decides how much money to send to the trustee, and the trustee decides how much of that money to return to the investor.