Revision summary
The capability approach, pioneered by Amartya Sen and expanded by Martha Nussbaum, shifts the metric of justice from mere resource distribution or utility maximisation to what individuals are actually able to do and be. Its distinctive features include a focus on substantive freedom, distinguishing between functionings and capabilities, and accommodating human diversity through conversion factors. Unlike resource-based egalitarianism, it recognises that individuals vary greatly in turning resources into valuable lives. In practice, this theory underpins modern human development paradigms, including the UNDP Human Development Index, shifting policy focus toward universal capabilities like health, education, and political agency.
Model answer
Copper italics in this answer — like this — are the key facts. Each one is unpacked in the Facts & figures rail.
Introduction
The capability approach redefines egalitarian justice by arguing that equality should be assessed not through the metric of primary goods, income, or utility, but through people's substantive freedom to achieve valuable functionings. Originating in Amartya Sen's critique of utilitarianism and rawlsian resource fetishism, and later systematised by Martha Nussbaum through a constitutional threshold of central human capabilities, this framework fundamentally alters how political theory conceptualises human flourishing and distributive equity.
Body
Foundations of the Capability Approach
- Core premise: Focuses on human development and freedom, defining well-being in terms of the substantive freedoms (capabilities) a person has to lead the life they have reason to value.
- Shift in metric: Moves away from opulence (GDP/income) and utility (happiness/desire-fulfillment) to agency and tangible life outcomes.
Functionings and Capabilities
- Distinction: Functionings are states of 'being and doing' (e.g., being well-nourished, educated), while capabilities are the substantive freedoms or opportunities to achieve these functionings.
- Agency role: Emphasises that true equality requires not just forced outcomes, but the freedom to choose among alternative life paths.
Accounting for Human Diversity
- Conversion factors: Acknowledges that personal, social, and environmental variations (e.g., disability, gender norms, geography) mean identical resource inputs yield vastly different capabilities.
- Beyond resources: Critiques strict resource-based egalitarianism for ignoring structural and physical impediments that prevent marginalised groups from converting resources into well-being.
Nussbaum's Central Human Capabilities
- Normative threshold: Martha Nussbaum establishes a universal list of ten central capabilities (including life, bodily health, affiliation, and practical reason) required for a life worthy of human dignity.
- Constitutional mandate: Advocates for embedding these capabilities into foundational legal and constitutional frameworks as a non-negotiable floor for social justice.
Flow diagram
flowchart TD
A[Traditional Metrics] -->|Income/Utility| B[Capability Approach]
B --> C[Resources Allocated]
C --> D[Conversion Factors]
D --> E[Capabilities: Substantive Freedom]
E --> F[Functionings: States of Being/Doing]
F --> G[Human Flourishing & Justice]
Conclusion
The capability theory of equality transcends the limitations of raw resource distribution by placing human agency and conversion diversity at the centre of distributive justice. By shifting policy evaluations from what people own to what they can actually achieve, it provides a robust normative foundation for modern welfare states. Ultimately, realising this approach requires structural policy interventions that guarantee a baseline of central capabilities for every citizen, ensuring substantive rather than merely formal equality.
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From passive resistors to armed revolutionaries, the Indian Freedom Struggle has a strong imprint of women freedom fighters. Elucidate
Next question on this syllabus topic (2026 · Q6(a)). View answer →
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What is the core difference between Amartya Sen and Martha Nussbaum's capability approaches?
While Sen deliberately leaves the list of capabilities open-ended to allow for democratic deliberation and public reasoning, Nussbaum provides a definitive, universal list of ten central human capabilities necessary for constitutional governance and human dignity.
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How does the capability approach differ from Rawlsian egalitarianism?
Rawlsian egalitarianism focuses on the fair distribution of primary goods and resources. The capability approach argues that people have diverse abilities to convert these resources into well-being, meaning identical resource allocation can still result in severe inequality of freedom.
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Q6(a) · UPSC Mains 2026 · PSIR GS 1 · 20 marks · Solution
From passive resistors to armed revolutionaries, the Indian Freedom Struggle has a strong imprint of women freedom fighters. Elucidate
Equality
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Q7(a) · UPSC Mains 2024 · PSIR GS 1 · 20 marks · Solution
Discuss the contribution of the Dalit struggle to establish egalitarianism in Indian society during the freedom movement.
Equality
Egalitarianism in India had to mean equal personhood against caste as graded inequality, not only against colonial rule. Dalit movements, from Phule’s legacy to Mahad, temple entry, and the Scheduled Castes Federation, made water, roads, worship, schools, and representation into national issues. Ambedkar and Gandhi clashed over separate electorates and the Poona Pact, which is itself part of the contribution: two models of equality entered public argument. The Constituent Assembly’s abolition of untouchability and equality articles are institutional fruits of that struggle. The contribution is the establishment of equal citizenship as a founding principle; social egalitarianism remained an unfinished task at Independence.
Q2(c) · UPSC Mains 2024 · PSIR GS 1 · 15 marks · Solution
The nature of relationship between equality of democratic citizenship and liberty of citizens is influenced by economic equality. Comment.
Equality
Democratic citizenship is equal civil and political standing; liberty is freedom from arbitrary interference and the chance to use that standing. Marshall’s social rights and Rawls’s fair opportunity and difference principle treat economic conditions as part of justice, not as a private afterthought. Marx and Ambedkar warn that political equality on a base of class and caste inequality is unstable and often empty. Indian Directive Principles, reservations, and Minerva Mills show the constitutional attempt to keep rights and socio-economic justice together. Economic equality in this argument is a floor against domination, not a demand to trade away equal basic liberties.