This volume of essays, written in honor of Amartya Sen, covers the range of contributions that Sen has made to knowledge. They are written by some of the world's leading economists, philosophers and social scientists, and address topics such as ethics, welfare economics, poverty, gender, human development, society, and politics. - ;Amartya Sen has made deep and lasting contributions to the academic disciplines of economics, philosophy, and the social sciences more broadly. He has engaged in policy dialogue and public debate, advancing the cause of a human development focused policy agenda, and