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Amartya Sen (1933–)

Sen’s central contribution is the capability approach: the idea that freedom should be understood not as the absence of interference or the possession of resources but as the real ability to live the life one has reason to value. What matters is not what people have (income, goods) but what they can do and be (capabilities and functionings). A wealthy person who is prevented from participating in public life is not free; a poor person who can participate is free in a way the wealthy one is not. This reframing — from resources to capabilities, from means to what the means make possible — has reshaped development economics, welfare economics, and political philosophy.

Life

Born in Santiniketan, Bengal, in 1933 — at the school and university founded by Rabindranath Tagore, where his grandfather taught. The Bengal famine of 1943, which killed an estimated two to three million people, occurred when he was nine. The experience shaped his lifelong work on famine, poverty, and the economics of deprivation. He studied economics at Presidency College, Calcutta, and then at Trinity College, Cambridge.

He held positions at Jadavpur University (Calcutta), the Delhi School of Economics, the London School of Economics, Oxford (Drummond Professor of Political Economy), Harvard (Lamont University Professor), and Cambridge (Master of Trinity College, 1998–2004). He was awarded the Nobel Prize in Economics (1998) for his contributions to welfare economics and social choice theory. He has been a public intellectual in India and globally, writing on democracy, secularism, identity, and the uses of history.

The capability approach

The capability approach distinguishes between functionings and capabilities. Functionings are states of being and doing — being nourished, being educated, participating in community life, having self-respect. Capabilities are the real freedoms a person has to achieve the functionings they value — not just formal rights but the actual ability to exercise them.

The approach was developed initially in Sen’s Tanner Lectures Equality of What? (1979), where he argued against both utilitarian (welfare/happiness) and Rawlsian (primary goods) metrics of equality. Utility is subjective and adaptive — people in deprived conditions adjust their expectations downward (“the battered slave, the broken unemployed, the hopeless destitute”). Primary goods are means, not ends — the same bundle of goods enables different functionings for different people (a disabled person and an able-bodied person with the same income have different capabilities).

The capability approach evaluates social arrangements by the capabilities they provide — the substantive freedoms people have to live lives they have reason to value. This makes it pluralist by design: it does not prescribe one good life but asks whether people have the freedom to pursue the lives they choose.

Development as freedom

Development as Freedom (1999) applies the capability approach to development economics. Development is not primarily about GDP growth, industrialisation, or technological advance — it is about the expansion of the freedoms people enjoy. Sen identifies five “instrumental freedoms” — political freedoms, economic facilities, social opportunities, transparency guarantees, and protective security — that are both ends in themselves and means to other ends.

The empirical work on famine is central. Sen demonstrated that famines do not occur in functioning democracies — not because democracies are wealthier, but because democratic accountability forces governments to act when food supplies fail. The Bengal famine of 1943 occurred under British colonial rule; independent India, despite remaining poor, has not had a famine. “No famine has ever taken place in the history of the world in a functioning democracy.” The claim links political freedom to material well-being through the mechanism of accountability, not through economic growth.

Sen’s earlier work in social choice theory (building on Arrow, extending beyond the impossibility theorem) provides the formal foundations. His “liberal paradox” (1970) demonstrated that no social choice function can simultaneously respect minimal liberty and Pareto optimality — a result that reveals a deep tension between individual rights and collective efficiency.

The Idea of Justice (2009) draws on social choice theory to argue against the dominant Rawlsian project of identifying perfectly just institutions. Sen argues for a comparative approach: rather than defining ideal justice, we should be able to rank alternatives as more or less just, even without agreeing on the ideal. The approach draws on the Indian tradition of nyaya (justice realised in the world) against niti (justice as correct institutional arrangement), and explicitly acknowledges the plurality of reasonable principles of justice — different principles may conflict and yet each be defensible.

Where Sen stops

Sen’s capability approach is deliberately incomplete — he provides the evaluative framework (assess by capabilities) but resists specifying a fixed list of capabilities. Martha Nussbaum has pushed for a definite list of central human capabilities (life, bodily health, practical reason, affiliation, etc.), arguing that without a list the approach lacks political content. Sen has resisted, arguing that the list should emerge from democratic deliberation, not from philosophical specification — any fixed list risks imposing one conception of the good. The debate is between Sen’s procedural openness and Nussbaum’s substantive commitment, and both positions have costs: openness risks emptiness; commitment risks paternalism.

The capability approach assesses what people can do and be, but it does not develop an account of how capabilities form and change, or how collective capability (the capability of communities, not just individuals) relates to individual capability. The framework measures states — it identifies what to evaluate — and leaves the formation and change of capabilities to other disciplines.

Key works

Collective Choice and Social Welfare (1970) — social choice theory, the liberal paradox, Arrow extended
Poverty and Famines (1981) — entitlement theory of famine, the Bengal famine, famine and democracy
Commodities and Capabilities (1985) — the capability approach stated, functionings and capabilities
Inequality Reexamined (1992) — equality of what? capabilities over resources, welfare, and primary goods
Development as Freedom (1999) — development as capability expansion, the five instrumental freedoms
The Idea of Justice (2009) — comparative justice, nyaya over niti, against ideal theory