Amartya Kumar Sen is an Indian economist and philosopher, who since 1972 has taught and worked in the United Kingdom and the United States. Sen has made contributions to welfare economics, social choice theory, economic and social justice, economic theories of famines, decision theory, development economics, public health, and measures of well-being of countries. He is currently a Thomas W. Lamont University Professor, and Professor of Economics and Philosophy at Harvard University. He formerl ...