Thirteen leading philosophers and economists discuss the Nobel Laureate Amartya Sen's trenchant critique of rational choice theory, and propose their own answers to the question of how to account for the rationality of committed action. The volume concludes with a specially-written reply by Sen. - ;Rational choice theory forms the core of the economic approach to human behaviour. It is also the most influential philosophical account of practical rationality. Yet there are persistent controversies about the scope of rational choice theory in philosophy and, increasingly, in economics as well. A