 Richard Braithwaite was the first professional philosopher to formally employ game theory in the analysis of a problem of ethics. In his 1954 lecture Theory of Games as a Tool for the Moral Philosopher (published 1955), Braithwaite used Nash’s bargaining problem to argue for a particular resolution to the fair division problem. He also conjectured that game theory might transform moral philosophy, much as statistics had transformed the social sciences. Although this transformation has not taken place in philosophy in the way that it has for some of the other social sciences, game theory has made significant inroads into moral and political philosophy in the years since Braithwaite’s lecture. David Gauthier’s Morals by Agreement (1986) and Ken Binmore’s Game Theory and the Social Contract (2 volumes, 1994, 1998) are arguably the first two works to present systematic moral theories built from game-theoretic foundations. Gauthier’s theory is rooted in classical game theory, although he proposes revisions to the orthodox account of Bayesian rationality that classical theory typically assumes. Binmore’s theory, on the other hand, integrates elements of both evolutionary and classical game theory. Other significant uses of game theory in ethics include, but are not limited to: