A note on empathy in games

In this note we shall discuss a concept that - despite its prominence in both Hume (1739) and Smith (1759), its obvious relevance for social behavior, and its not so infrequent use in colloquial language - has never gained a foothold in economic theory: the concept of empathy. Specifically, we illustrate how some insights from the psychological literature on empathy can be incorporated into a standard utility framework, and demonstrate the potential interaction of beliefs and utility through the channel of empathy.