If understood as a practical way of solving social games, business ethics can potentially rule the world. This book links game theory to business ethics by applying the classic Four Temperaments approach to a wide range of moral emotions. Eastman suggests that our ethical nature as divided by the four temperaments (Sanguine, Phlegmatic, Choleric, and Melancholic) allow us to solve various social games, which are outlined in this text. Given the significant debate over whether ethics pays in the business community, this book offers academics and students of game theory a perspective that covers social preferences in a nontraditional way.