In: Economics
could the theory of subgame perfect equilibrium in repeated games teach us something about reciprocity, fairness, social justice equity, or love?
In a game theory a Subgame perfect equilibrium is a refinement of a Nash equilibrium used in dynamic games.A strategy profile is a Subgame perfect equilibrium if it represent a Nash equilibrium of every sub game of original game.
For finitely repeated game if a stage has only one unique Nash equilibrium the Subgame perfect equilibrium is to play without considering past actions, treating the current Subgame as a one shot game hence theory of Subgame perfect equilibrium in repeated game teaches us something about reciprocity,fairness,social justice equity and love.