Sociology vs Economics

The second neighbour. Economics is the most powerful and best-funded of the social sciences, it studies human behaviour with formidable rigour, and it explains a great deal that is true. The difference between it and sociology is not that one is right. It is a difference about where an explanation is allowed to start.

We can get to the heart of it with a birthday present.

Your friend's birthday is next week. You spend an hour choosing a gift, settle on something costing five hundred rupees, and hope she likes it.

Consider the alternative. You could hand her five hundred rupees in an envelope. She would then buy the thing she most wants — by definition something she values more than your gift, since she chose it herself and knows her own preferences better than you do. Cash is strictly more efficient. There is even a well-known economics paper on the "deadweight loss of Christmas," estimating how much value is destroyed each year by people buying each other things they would not have bought themselves.

The logic is airtight. And you are not going to do it.

Worse — and this is the interesting part — if you did hand over the envelope, something would be damaged. She would smile and something would go slightly wrong. If you handed cash to your grandmother on her birthday, it would be worse. If you handed cash to a host who cooked you dinner, it would be an insult. If your friend handed you cash immediately afterwards, in the exact same amount, you would both feel that something had been undone.

Meanwhile, in other situations, cash is not merely acceptable but required — a wage, a fine, a fee. And in some, cash is right but only in particular forms: in many societies money at a wedding must be a specific auspicious figure, in a decorated envelope, handed over publicly.

So money is not one thing. It is many things, depending on the relationship it passes through.

The idea, in plain words

Four differences that actually matter

1. Where explanation starts: homo economicus and his critics

The classical simplifying assumption is a rational actor with stable, consistent preferences, maximising utility given information and constraints. It is a model, not a portrait, and economists have always known that.

Sociology's objection is not that people are stupid. It is that preferences are social products, and treating them as given puts the most interesting question outside the analysis. Why do people want a bigger house? Why has the acceptable size of a wedding grown? Why is a particular degree suddenly essential? Why did smoking become desirable and then shameful? These are not tastes that fell from the sky. They are produced by advertising, class competition, status comparison, family expectation and historical change (Veblen on conspicuous consumption, 4.6; Bourdieu on distinction, 5.10).

2. Markets are built, not found

The other great sociological claim is that a market is not a natural condition but an institution — an achievement requiring an enormous amount of social scaffolding.

Consider what has to exist before a stranger will hand you goods for a piece of paper: a currency backed by a state; contract law and courts; property rights that are recognised and enforceable; weights and measures; information about quality; and above all trust, because most transactions are not simultaneous and someone always goes first.

Karl Polanyi (9.4) made the historical version of this argument in The Great Transformation: for most of human history, economic activity was embedded in social relations — kinship, obligation, religion, reciprocity. The modern market economy required disembedding it, and that was not a natural evolution but a political project involving enclosure, new law, and the forcible creation of a labour market. His point is easily misread: he was not romanticising the past, he was denying that markets are the default state of humanity.

Mark Granovetter (5.5) made the contemporary version with the concept of embeddedness: real economic action runs through concrete social networks, not between anonymous atoms. His famous finding — that people find jobs mainly through weak ties, acquaintances rather than close friends or formal applications — is a direct empirical challenge to the picture of a labour market as an open competition among strangers. Return to the interview in 1.3.2: eighty per cent of hires came through referrals. That is not a market failure; it is how markets actually work.

3. Money has meanings

Viviana Zelizer's work (9.4) is the definitive treatment of our birthday problem. Money, she showed, is not the perfectly fungible substance economics models. People routinely earmark it: this money is for school fees, that money is "my own," this envelope is for the temple, these notes came from a grandmother and cannot be spent on anything ordinary. Households run elaborate systems of separate monies with different moral rules attached.

Marcel Mauss's classic essay The Gift is the anthropological ancestor: a gift creates an obligation to reciprocate, and therefore a relationship over time. That is precisely what the efficient envelope destroys. The gift is not a poor substitute for cash. It is a different instrument doing a different job.

4. Power and distribution are central, not residual

Sociology treats power as constitutive of economic life rather than as a distortion of it. Who sets the terms? Who can wait, and who must accept today's price? Who is in the network and who is not? Whose work is counted as work at all — a question feminist economics and sociology have pressed hard, since unpaid domestic and care labour (5.7, 9.1) is invisible in national accounts while being the precondition of everything in them.

There is a tea stall you use every day. Two streets away, an identical glass of tea is two rupees cheaper. You know this. You keep going to the same man.

Why? He knows how you take it. He asks about your mother. Once, when you had no change, he waved you on. When his supply is short he keeps one for you. If you stopped coming, something would be slightly wrong between you.

Standard price theory says you are irrational; a more sophisticated economics can absorb this as search costs, switching costs, or preference for a bundled experience. The sociologist adds what those models cannot: this is a relationship, with obligation, memory and mild moral content, of the kind E. P. Thompson called a moral economy — an economic exchange embedded in shared norms about what is fair.

And note that the vendor is running the same logic in reverse. His informal credit to regulars is not charity; it is a rational investment in a network that is also a genuine social bond. Neither of you experiences it as calculation, and both of you would notice immediately if the other broke it.

Go deeper

The two disciplines have been converging

This is not a story of permanent opposition, and an honest account has to say so.

Behavioural economics dismantled the strict rational-actor assumption from inside economics, using experiments to show systematic, predictable departures from the model — loss aversion, framing effects, present bias, the influence of defaults, the weight of what others are doing. Sociologists sometimes greet this with a weary "we said so," which is unfair: economists produced the rigorous evidence, and made it move policy.

Economic sociology (9.4) grew into a major field from the 1980s onwards — Granovetter, Zelizer, Neil Fligstein on markets as political constructions, Bourdieu on economic fields.

Institutional economics and its close relative, the study of collective action, converge from the other side. Elinor Ostrom's work on commons governance — showing that communities frequently do manage shared resources sustainably through their own institutions, contrary to the standard "tragedy of the commons" prediction — is as sociological as it is economic, and it won a Nobel Prize.

Inequality research is now genuinely shared territory. The large empirical literature on the distribution of income and wealth, and on intergenerational mobility, is produced jointly by economists and sociologists using the same datasets.

So the boundary is porous and getting more so. What remains distinct is emphasis: economics still tends to model choice within constraints; sociology still tends to explain how the constraints, the categories and the wants were produced.

Where each is stronger

Being able to say this is a sign you have understood both.

Economics is stronger at aggregation and prediction under specified conditions; at modelling trade-offs, prices and incentives precisely; at the mathematics of scarcity; and at the discipline of stating a hypothesis in a form that data can refute.

Sociology is stronger at explaining the origin of preferences and institutions; at what is happening inside a firm, a household or a market rather than treating it as a black box; at power, meaning and status; at the categories the numbers are built from; and at noticing what is not counted.

A useful pairing: economics can tell you what happens to demand if you tax something. Sociology can tell you whether the thing being taxed is a status good whose value depends on being expensive — in which case the tax may not do what the model predicts.

The word "rational" is doing too much work

A final clarification that resolves more arguments than any other.

Sociologists and economists often talk past each other over rationality because they mean different things. If "rational" means pursuing your ends effectively given your beliefs, then almost everything in this lesson is rational — the gift, the tea stall, the wedding in 1.3.6, the referral. If it means maximising material self-interest, then most of social life is not rational, and the model will keep being surprised.

Weber saw this a century ago and gave us a better vocabulary (4.3): action can be instrumentally rational (efficient means to a goal), value-rational (done because it is right, whatever the cost), traditional (done because it has always been done), or affectual (done out of feeling). Four types, all intelligible, only the first captured by the standard model. That typology remains one of the most useful things in this whole course.

"Sociologists think economics is wrong." Most think it is a powerful model with a restricted domain — which is what a model is. The objection is to treating its simplifying assumptions as a description of human nature.

"Sociology is anti-market." No. Economic sociology studies markets closely and often admiringly; the claim is that they are institutions requiring construction and maintenance, not that they are bad. Polanyi's argument is about how markets were made, not that they should be abolished.

"Economists ignore society." Increasingly untrue. Behavioural, institutional and development economics all take social context seriously, and the best work in economic history is deeply sociological.

"People are not rational." Too blunt to be useful. Use Weber's four types instead and you will be saying something precise.

"Money is money." Zelizer's whole point is that it is not: people earmark, separate and moralise money constantly, and the same sum means entirely different things in a wage, a gift, a bribe, a fine and an offering.

Why it matters

It changes what you notice about your own economic life. The tea stall, the gift, the wedding, the job you got through a cousin, the money your family keeps in a separate tin — none of these is a deviation from economic behaviour. They are what economic behaviour actually looks like when a real society is running it.

It improves policy thinking. Interventions built purely on incentives fail when the behaviour is value-rational, status-driven or embedded in obligation. Interventions built purely on norms fail when people genuinely cannot afford the thing. Knowing which you face is the whole game, and it is 1.3.6's material–ideal question in applied form.

And it explains one of the discipline's central preoccupations. If markets are institutions, they can be built differently — which is why sociologists spend so much time on the arrangements behind prices: labour law, land, credit, caste and gender in hiring, global value chains (8.8, 9.4, 11.6).

Economics typically takes preferences as given and analyses choice under scarcity. Sociology asks where preferences, markets and categories come from.

Four sociological claims: preferences are socially produced (Veblen, Bourdieu); markets are institutions requiring law, trust and enforcement (Polanyi, disembedding); real economic action runs through networks (Granovetter, embeddedness, weak ties); and money carries meanings and is routinely earmarked (Zelizer; Mauss on the gift).

Power and unpaid work are central, not residual: what counts as work is itself a sociological question.

The fields are converging — behavioural economics, economic sociology, Ostrom on the commons, joint inequality research.

Weber's four types of action (instrumentally rational, value-rational, traditional, affectual) dissolve most arguments about whether people are "rational."

Homo economicus — the modelled rational actor with stable preferences maximising utility under constraint.

Preferences — what people want; taken as given in standard economics, explained as socially produced in sociology.

Embeddedness — Granovetter's concept that economic action is situated in concrete networks of social relations.

Disembedding — Polanyi's term for the historical extraction of economic activity from social obligation to create a self-regulating market.

Moral economy — an economy governed by shared norms of fairness and obligation as well as by price.

Earmarking — Zelizer's term for the social practice of designating money for particular purposes and moralising the categories.

The gift — Mauss's analysis of giving as creating obligation and therefore an ongoing relationship.

Conspicuous consumption — Veblen's term for spending whose purpose is the display of status.

Instrumentally rational / value-rational / traditional / affectual action — Weber's four types of social action.

Economic sociology — the field studying markets, firms, money and work as social and institutional phenomena.

Unpaid care work — domestic and caring labour excluded from economic accounts but necessary to the economy.

One — the envelope test. List five people you would give a chosen gift to and five to whom cash would be acceptable or expected. What distinguishes the two lists? You have just mapped a set of relationship types.

Two — audit your own market. Name three purchases you make from someone you know rather than the cheapest available source. What are you actually buying?

Three — find the earmarks. Ask whoever manages money in your household how many separate pots or purposes it is divided into, and which rules attach to each. Compare with the idea that money is fungible.

Four — four types of action. Take one hour of your yesterday and classify each thing you did as instrumentally rational, value-rational, traditional or affectual. Most people are surprised by how little falls into the first box.