Abstract

Isaiah Berlin distinguished between negative liberty, which is freedom from external coercion, and positive liberty, the freedom to master oneself. But the schema is too simple. Adam Smith thought that God had harmoniously arranged the world in such a way that the freedom provided by our negative liberty tended to redound to the public good. Mill, worried about the deleterious effects of public ignorance, accorded elites a prominent role in ensuring that negative liberty would lead to positive results. More recently, libertarian paternalists, such as Richard Thaler and Cass Sunstein, have argued that research on biases and heuristics demonstrates the need for psychologically informed elites to direct negative liberty toward positive ends by crafting better ?choice contexts.? In these thinkers one can discern a third version of liberty, where negative liberty is not an end in itself but a means, however insufficient, to positive outcomes