In the economic or social contract tradition, society is an arrangement negotiated by rational, self-interested individuals. Society emerges when people agree to sacrifice some of their autonomy in exchange for security from the depredations of others wielding their autonomy. It is the tradition of Thrasymachus in Plato’s Republic, and of Machiavelli, Hobbes, Locke, Rousseau, Smith, and Bentham. In the twentieth century it became the basis for the rational actor or “economic man” models in economics and political science, and for cost-benefit analyses of public choices.
