Das Kapital

Karl Marx's magnum opus on political economy | 1867

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Theory of Surplus Value

Surplus value is the core concept of Marxian political economy. It refers to the value created by workers in the production process that exceeds the value of their labor power (wages), which is appropriated by the capitalist without compensation.

Rate of Surplus Value (m') = Surplus Value (m) / Variable Capital (v) × 100%
Surplus Labor Time = Working Day - Necessary Labor Time
Total Surplus Value = Surplus Labor Time × Number of Workers × Value Creation per Unit of Time

Absolute Surplus Value: Increasing surplus value by extending the working day.
Relative Surplus Value: Increasing surplus value by raising labor productivity and shortening necessary labor time.