Revision summary
The behavioural approach studies observable political behaviour, attitudes, and systems, aiming at empirical, often quantitative, theory. Easton, Dahl, Almond, and Verba made this the mid-century revolution against purely legal description of the state. The institutional approach studies constitutions, organisations, and rules; new institutionalism adds routines, path dependence, and strategic constraint. March and Olsen, North, and historical institutionalists restored the state and durable rules after behaviouralism had thinned them. The two differ in unit and method; political theory needs both, because authority is lived as behaviour inside institutions.
Model answer
Copper italics in this answer — like this — are the key facts. Each one is unpacked in the Facts & figures rail.
Introduction
Behavioural and institutional approaches ask different first questions. One asks how actors actually behave, prefer, and respond. The other asks how rules, offices, and organisations shape and outlast those actors. Political theory and political science have swung between them since the mid-twentieth century. A comparison must hold both in one frame.
Body
Behavioural approach
The behavioural revolution, associated with David Easton, Robert Dahl, Gabriel Almond, and Sidney Verba, wanted political studies to be empirical, theory-oriented, and, where possible, quantitative. The unit is observable behaviour: voting, attitude, socialisation, demand and support in Easton’s political system. Easton defined politics as the authoritative allocation of values. Almond and Verba’s civic culture linked stable democracy to attitudes, not only to constitutions.
The philosophical mood was suspicion of armchair state-theory. Concepts should be operationalised. Charles Merriam and the Chicago school had prepared this turn. Behaviouralism promised cumulation and comparison across countries. Its critics, including Christian Bay and later post-behaviouralists whom Easton himself partly joined after 1969, said it evacuated justice, power, and the state, and that it smuggled a conservative status quo into “value-free” science.
Institutional approach
Classical institutionalism described constitutions, parliaments, federal bargains, and legal powers — the world of Dicey, Bagehot, and comparative government textbooks. It could be formal and legalistic. New institutionalism, from the 1980s, answered behaviouralism without returning to mere legal description. James March and Johan Olsen argued that institutions are collections of rules and routines that define appropriate action. Douglass North treated institutions as the rules of the economic game. Historical institutionalists study path dependence and critical junctures. Rational-choice institutionalists study how rules structure strategic interaction.
- Here the unit is the durable constraint: an electoral system, a Supreme Court, a Planning Commission, a party law. Individuals still act, but not on a blank field. Theda Skocpol’s “bringing the state back in” belongs to this recovery.
Comparison
Behaviouralism is actor-centred, often survey-centred, and strong on micro-foundations of consent and cleavage. It is weaker on why two countries with similar attitudes produce different rights, and on how a written constitution channels conflict. Institutionalism is structure-centred, strong on path dependence, courts, and federal design, and weaker if it forgets that rules are staffed by socialised human beings.
For political theory the stakes are clear. A purely behavioural science can lose the normative meaning of authority. A purely formal institutionalism can miss the living culture that makes a parliament work or fail. Easton’s later post-behavioural plea for relevance, and the new institutionalist turn, are both admissions that the study of political theory needs behaviour inside institutions. Indian politics illustrates the pair: voting surveys explain coalitions; Articles 370 and 356, the Finance Commission, and the Election Commission explain why some games are even playable.
Flow diagram
Conclusion
Behaviouralism studies what actors do and believe. Institutionalism studies the rules and organisations that frame those acts. The first rescued political science from empty legalism; the second rescued it from a politics without a state. A comparative political theory now treats them as complementary levels, not as rival churches.
Quick related
Students also ask
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"State ………. does the greatest harm to mankind by destroying individuality, which lies at the root of all progress." - Mahatma Gandhi. Elucidate
Next question on this syllabus topic (2025 · Q3(b)). View answer →
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Is behaviouralism the same as behaviourism in psychology?
It is related in its demand for observables, but political behaviouralism studies attitudes and meanings as well as overt acts, and it is not Watson’s psychology.
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Why did institutions return?
Because similar voter attitudes produced different outcomes under different electoral and federal rules, which a survey of individuals could not explain by itself.
Same topic · past papers
UPSC has asked this before
These previous-year questions sit on the same topic. Open one to practise the earlier ask.
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2025 · Q1(a) · PSIR GS 1 · 10 marks
Explain the Philosophical approach to the study of Political theory -
2021 · Q2(b) · PSIR GS 1 · 15 marks
Examine the importance of behavioural approach in political theory. What led to its decline? -
2026 · Q1(a) · PSIR GS 1 · 10 marks
Resurgence of political theory. -
2023 · Q1(e) · PSIR GS 1 · 10 marks
Decline of political theory. -
2024 · Q2(b) · PSIR GS 1 · 15 marks
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