Marxist Economic Theory

Karl Marx did not just criticise capitalism politically. He built a detailed economic theory arguing that profit itself comes from underpaying workers.

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Economy0014 · Indian Economy

Karl Marx’s critique of where profit really comes from

Key text

Das KapitalVolume 1 published 1867

Core concept

Surplus ValueUnpaid labour becomes profit

Framework

Historical MaterialismEconomics drives history

Core Theory

The labour theory of value ties a good’s value to labour time.
Capitalists pay workers less than the value they produce.
That gap between value created and wage paid is surplus value.
Marx treated surplus value as the true source of profit.

Wider Framework

Historical materialism says economic conditions shape history.
Marx saw class struggle as the engine of historical change.
Friedrich Engels published Volumes 2 and 3 after Marx’s death.
Marx’s theories became the base for later socialist movements.

Labour vs. Labour Power

Marx distinguished “labour power” — a worker’s capacity to work, which is bought for a wage — from the actual value that labour later creates.

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📑 Contents

1“Das Kapital” (1867)
2The Labour Theory of Value
3Surplus Value: The Source of Profit
4Historical Materialism
5Labour Power vs. Labour
6Class Struggle as History’s Engine
7Engels Finishes “Das Kapital”
8The Shared End-Goal With Gandhism
9Foundation for Later Movements
10Mainstream Pushback on the Theory
11Marxist Economics vs. Marxism the Ideology
12CSP 2020: What Gandhism and Marxism Actually Share

Must Know

“Das Kapital” (1867)

StoryKarl Marx laid out his economic theory in “Das Kapital.” He published Volume 1 in 1867.
ResultHe is often called the founder of scientific socialism. That’s because he tried to study capitalism the way a scientist studies nature, not just criticise it as unfair.

The Labour Theory of Value

StoryThe labour theory of value says a good’s value comes from the labour needed to make it. The more work it takes, the more it is worth.
ExampleIf it takes twice as many hours to make a chair as a stool, the chair should be worth roughly twice as much. That’s the theory’s prediction.

Surplus Value: The Source of Profit

StoryMarx argued capitalists pay workers less than the value those workers actually produce.
HowHe called this gap surplus value — the difference between what a worker creates and what a worker is paid. Marx treated this gap as the true, hidden source of profit.

Historical Materialism

StoryHistorical materialism holds that economic conditions, not just ideas or great leaders, drive historical change.
InsteadIn simple terms: how a society produces and shares goods shapes its politics and beliefs — not the other way round.

Good to Know

Labour Power vs. Labour

StoryMarx drew a careful line between two things. Labour power is a worker’s raw capacity to work. This is different from the actual value that work later creates, once applied.
WhyA capitalist buys labour power for a wage. But the value the worker then creates is worth more than the wage paid. That gap is the surplus value covered above.

Class Struggle as History’s Engine

StoryMarx saw class struggle between workers and capitalists as the driving force of history.
InsteadHe did not see this conflict as accidental or fixable with better rules. He saw it as built into how capitalism itself works.

Engels Finishes “Das Kapital”

StoryMarx did not live to finish his own book. His close collaborator Friedrich Engels completed and published Volumes 2 and 3, after Marx’s death.

The Shared End-Goal With Gandhism

StoryMarxism and Gandhism reach the same final destination by very different roads: both aim for a stateless, classless society.
InsteadMarx wanted to get there through class struggle, and was open to revolution and force. Gandhi wanted the same end through non-violence and self-restraint, which he called “enlightened anarchy.”

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Great to Know

Foundation for Later Movements

ResultMarx’s economic theories became the intellectual foundation for later socialist and communist movements around the world.

Mainstream Pushback on the Theory

StoryMainstream economists have extensively challenged the labour theory of value since Marx’s own time.
WhyA common criticism: the theory struggles to explain price differences. Two goods needing the same labour time can still sell for very different prices, once demand and scarcity enter the picture.

Marxist Economics vs. Marxism the Ideology

InsteadMarxist economics differs from Marxism as a political ideology, even though the two are closely linked.
WhyThe economics is a specific claim about where profit comes from. Marxism as a political movement is the broader push to act on that claim and reorganise society.

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