On Sen's Liberal Paradox and its Reception within Political Theory and Welfare Economics

In this article, Amartya Sen's seminal proof of the impossibility of a Paretian liberal is briefly reviewed. I then discuss the reception of this alleged 'liberal paradox' within the fields of political theory and welfare economics. In particular, I examine the criticisms made by Brian Barry, and their wider implications for the field of social choice theory. It is argued that the various criticisms made on Sen's characterisation of liberty are fundamental, and that Sen's subsequent defence of his position is unconvincing. Moreover, there remain some wider doubts as to the usefulness of social choice theory's SWF approach to individual rights and freedoms.