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Mutualism

Mutualism names relationships of mutual benefit. The term has two parallel nineteenth century origins — political-economic (Proudhon, 1840s) and biological (van Beneden, 1873) — and both traditions continue to develop. In biology, mutualism describes interspecific interactions where both organisms derive measurable benefit. In social and economic thought, it describes voluntary, reciprocal association based on mutual aid and shared benefit.

Nineteenth century origins

The political use comes first. Pierre-Joseph Proudhon develops mutualism as an economic and political programme through the 1840s and 50s — What is Property? (1840), System of Economic Contradictions (1846), General Idea of the Revolution in the Nineteenth Century (1851) — advocating federated, voluntary, reciprocal association, free credit, and mutual banking in place of centralised authority.

The biological term is coined three decades later. Belgian zoologist Pierre-Joseph van Beneden introduces it in 1873 and develops it in Animal Parasites and Messmates (1875), naming a class of interspecific relations distinct from parasitism and commensalism.

Between these two coinages, Charles Darwin’s On the Origin of Species (1859) reframes life as struggle for existence — a phrase Darwin draws from Thomas Malthus. Herbert Spencer extends this into the social register (“survival of the fittest”, coined 1864), and Thomas Henry Huxley’s Struggle for Existence in Human Society (1888) defends it as a description of nature and society alike.

Peter Kropotkin’s Mutual Aid: A Factor of Evolution (1902) is the most developed political-biological synthesis of the period, arguing from natural history that cooperation is as much a factor in evolution as competition — and that Hobbesian and Huxleyan readings distort what is observed.

The biology/economics traffic runs both ways through the period. Darwin reads Malthus. Karl Marx reads Darwin. Spencer reads each into the other. Kropotkin reads Huxley and Darwin against Huxley. Across very different political loyalties and methods, a shared instinct runs through these figures: that there is a pattern in nature, and the right arrangement of society can be grounded in it. Which pattern is contested. The commitment to grounding politics in nature is largely shared.

That shared instinct did not produce agreement. The socio-political tradition divided sharply over which arrangement follows: Marx’s rupture with Proudhon (1847) separated the emerging Marxist current from mutualism, and the division hardened through the International Workingmen’s Association into distinct Marxist and anarchist lineages. Within anarchism, mutualism is the founding term of a sequence running on through collectivism and communism. Its later reception is contested to the present.

In more detail

Mutualism in biology — the ecological concept, game theory and evolutionary biology, complex adaptive systems, current research.
Mutualism in social and economic thought — the European reception and the Marxist/anarchist split, the American individualist tradition and its contested reception, the cooperative movement, twentieth and twenty-first century developments, anthropological perspectives.

The appeal to nature

The biological and socio-political traditions have continued to influence each other since their shared nineteenth century origins. The appeal to nature — patterns observed in living systems used to ground claims about how human society should arrange itself — runs through both traditions. Whether the observed patterns are being described or projected, and whether the move from biological observation to social prescription is sound, remain ongoing questions in the philosophy of biology and political theory. The question is older than its current vocabulary and is not closed.

See also: Darwinism · Complex Adaptive Systems · Darwin · Kropotkin · Proudhon · Ostrom · Trivers · Kauffman