His most famous work was published in another 1970 paper in which he attributed the Arrow Impossibility theorem to his most important  development.
A proponent of Marshall's economics while a student of Joan Robinson, he discarded his roots and employed social  choice theory in his most famous work. In his 1970 article The Impossibility of a Paretian Liberal, this economist argued that the Pareto optimality was not value-neutral but rather contradicted the liberalism of Mill. His most famous work was published in another 1970 paper in which he attributed the Arrow Impossibility theorem to his most important  development. FTP, identify this author of Collective Choice and Social Welfare, the Indian recipient of the 1998 Nobel  Prize in Economics.
A proponent of Marshall's economics while a student of Joan Robinson, he discarded his roots and employed social  choice theory in his most famous work.
Amartya Sen