How Surplus Value Becomes Capital — Das Kapital

Chapter 24 moves from simple reproduction to accumulation, defining it as reconverting surplus-value into capital. Marx first tracks accumulation in abstract exchange terms where equivalents appear to be traded and property seems to rest on one's own labour. He then shows that once labour-power itself is commodified, those legal appearances invert into capitalist appropriation of unpaid labour.

What looks like fair circulation repeatedly yields ownership claims over products created by others. Accumulation also intensifies competition between capitals, compelling reinvestment instead of pure luxury consumption. This competitive dynamic differentiates magnitudes of accumulation and deepens command over labour.

Marx rebuts abstinence narratives by insisting surplus-value comes from exploitation, not moral self-denial. Historical notes on English demography and emigration underscore that population dynamics are politically managed, not neutral background facts. The chapter closes with the legal transition from commodity property rules to capitalist appropriation rules as a structural outcome of repeated exchange.

Accumulation converts surplus into new constant and variable capital, reorganizing competition so firms must grow or die and workers face recurring pressure to accept lower shares of what they produce.