Mood is information. A good mood signals a desire to cooperate; a bad mood warns of a determination to oppose. Firms may communicate by mood. The paper makes three points about the mood of a firm. First, mood can change. A change in mood affects everyone in the market. Second, there exists a...

A physician faces a difficult decision when her terminally ill patient wants to die. Her compassion and the Hippocratic Oath pull her in different directions. A bargaining model offers an explanation of how she balances these emotions. The model has simple and powerful implications for the patient.