Amartya Sen uses his 1999 work Development as Freedom to evaluate the processes and outcomes of economic development. Having come to the conclusion that development is best summed up as the expansion of freedom, Sen examines traditional definitions and understandings of the term. He says people tend to think of freedoms as economic (the freedom to enter into market exchanges) or political (the freedom to vote and be an active citizen), and tries to understand why the definition has been so narrow hitherto. He concludes that an evaluation of true freedom must necessarily include the freedom to access social services such as healthcare, sanitation and nutrition, just as much as it must acknowledge economic and political freedoms. Evaluating the relevance of the current thinking behind development, Sen concludes that the term 'freedom' cannot simply be about income. In many ways, measuring income does not account for various 'unfreedoms' (manmade or natural bars to wellbeing) that hinder development. Sen's evaluation is all the more powerful for its clarity: 'The freedom-centered perspective has a generic similarity to the common concern with 'quality of life.'

In Development as Freedom Amartya Sen explains how in a world of unprecedented increase in overall opulence millions of people living in the Third World are still unfree. Even if they are not technically slaves, they are denied elementary freedoms and remain imprisoned in one way or another by economic poverty, social deprivation, political tyranny or cultural authoritarianism. The main purpose of development is to spread freedom and its 'thousand charms' to the
unfree citizens.
Freedom, Sen persuasively argues, is at once the ultimate goal of social and economic arrangements and the most efficient means of realizing general welfare. Social institutions like markets, political parties, legislatures, the judiciary, and the media contribute to development by enhancing individual freedom and are in turn sustained by social values. Values, institutions, development, and freedom are all closely interrelated, and Sen links them together in an elegant analytical framework.
By asking 'What is the relation between our collective economic wealth and our individual ability to live as we would like?' and by incorporating individual freedom as a social commitment into his analysis Sen allows economics once again, as it did in the time of Adam Smith, to address the social
basis of individual well-being and freedom.
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