"I think dead children should be used as a unit of currency."

A slightly rationalist short story.

Picoeconomics is a developing framework for the analysis of motivation and motivational conflict.

Assumes that people care not only about their material well-being, but also about what kind of society they live in, and derives that maximizing almost any social welfare function results in a paradox which limits the planner's choice severely.

If each player has chosen a strategy and no player can benefit by changing his strategy while the other players keep theirs unchanged, then the set of strategy choices constitutes a Nash equilibrium. Nash equilibria must exist for all finite games.