Ultimatum Game

Economists use a game called the ultimatum game to study how the perception of fairness affects actions. Here's how it works: The game is played by two people. One person receives some money (say $10). This first person offers to split the money with the second person (say $5/$5, $7/$3, $8/$2, or whatever they want). This offer is an ultimatum, so the second person only has two choices: to accept or reject the offer. If its accepted, they both keep the offered split, and if rejected, they both get nothing.