science

Methodological individualism

Methodological individualism is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Methodological individualism rather than just read about it. In short: In the social sciences, methodological individualism is a method for explaining social phenomena strictly in terms of the decisions of individuals, each being moved by their own personal motivations. In contrast, explanations of social phenomena which assume that cause and effect acts upon whole classes or groups are deemed illusory, and thus rejected according to this approach.

Key takeaways

Methodological individualism belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Methodological individualism to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Methodological individualism from memory before moving on to harder problems.

Reference excerpt

In the social sciences, methodological individualism is a method for explaining social phenomena strictly in terms of the decisions of individuals, each being moved by their own personal motivations. In contrast, explanations of social phenomena which assume that cause and effect acts upon whole classes or groups are deemed illusory, and thus rejected according to this approach. Or to put it another way, only group dynamics which can be explained in terms of individual subjective motivations are considered valid. With its bottom-up micro-level approach, methodological individualism is often contrasted with methodological holism, a top-down macro-level approach, and methodological pluralism.

History within the social sciences This framework was introduced as a foundational assumption within the social sciences by Max Weber, and discussed in his book Economy and Society. Within later schools of economic thought, such as the Austrian School, strict adherence to methodological individualism is considered a necessary starting principle. It draws heavily upon assumptions of neoclassical economics, where social behavior is explained in terms of rational actors whose choices are constrained by prices and incomes, and where individuals' subjective preferences are treated as a given.

Criticisms Economist Mark Blaug has criticized over-reliance on methodological individualism in economics, saying that "it is helpful to note what methodological individualism strictly interpreted [...] would imply for economics. In effect, it would rule out all macroeconomic propositions that cannot be reduced to microeconomic ones [...] this amounts to saying goodbye to almost the whole of received macroeconomics. There must be something wrong with a methodological principle that has such devastating implications". Similarly, the economist Alan Kirman has critiqued general equilibrium theory and modern economics for its "fundamentally individualistic approach to constructing economic models", and showed that an individualist competitive equilibrium is not necessarily stable or unique. However, stability and uniqueness can be achieved if aggregate variables are added, and as a result he argued "the idea that we should start at the level of the isolated individual is one which we may well have to abandon".

See also Methodological holism Methodological pluralism Austrian School Praxeology Analytical Marxism – School of Marxist theory

References

Further reading Agassi, Joseph (1960). "Methodological individualism". The British Journal of Sociology. 11 (3): 244–70. doi:10.2307/586749. JSTOR 586749. Arrow, Kenneth J. (1994). "Methodological Individualism and Social Knowledge". American Economic Review. 84 (2): 1–9. JSTOR 2117792. Kaushik Basu (2008), "Methodological Individualism", The New Palgrave Dictionary of Economics, 2nd ed., New York : Palgrave Macmillan ISBN 978-0-333-78676-5 Abstract. Brian Epstein (2009), "Ontological Individualism Reconsidered", Synthese 166(1), pp. 187–213. Hayek, F. A. (1948). Individualism and Economic Order. University of Chicago Press – via Internet Archive.. ISBN 0-226-32093-6 Geoffrey Hodgson, (2007) "Meanings of Methodological Individualism", Journal of Economic Methodology 14(2), June, pp. 211–26. Harold Kincaid (2008), "Individualism versus Holism," The New Palgrave Dictionary of Economics, 2nd ed., New York: Palgrave Macmillan ISBN 978-0-333-78676-5 Abstract. Lukes, Steven (1968). "Methodological Individualism Reconsidered". British Journal of Sociology. 19 (2): 119–29. doi:10.2307/588689. JSTOR 588689. Menger, Carl (1963). Schneider, Louis (ed.). Problems of Economics and Sociology [Investigations into the Method of the Social Sciences with Special Reference to Economics]. Translated by Nock, Francis J. Urbana: University of Illinois Press. p. 93 – via Internet Archive. Mises, Ludwig (1998). "The Principle of Methodological Individualism". Human Action: A Treatise on Economics – The Scholar's Edition. Ludwig von Mises Institute. pp. 41-43. ISBN 9780865976313. Popper, Karl R. (1960). The Poverty of Historicism (2nd ed.). London: Routledge & Kegan Paul – via Internet Archive. Schumpeter, Joseph (February 1909). "On the Concept of Social Value". Quarterly Journal of Economics. 23 (2): 213–32. doi:10.2307/1882798. JSTOR 1882798. Lars Udéhn (2002), "The Changing Face of Methodological Individualism", Annual Review of Sociology, 28, pp. 479–507.

External links

Worked examples

Example 1 — a first encounter with Methodological individualism

Start with the simplest possible case. Write down what Methodological individualism claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Methodological individualism before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Methodological individualism ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Methodological individualism

In research: Methodological individualism appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Methodological individualism in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Methodological individualism is common in secondary-school and first-year university syllabi. It links to neighbouring topics Criticisms of economics, Individualism, Philosophy of social science, so understanding it makes those chapters shorter.
In everyday life: Look for Methodological individualism outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Methodological individualism in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Methodological individualism means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Methodological individualism out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Methodological individualism in simple terms?

Why does Methodological individualism matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Methodological individualism?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Methodological individualism.