For the past two centuries, almost every major political and economic argument has taken place inside the same hidden framework: labour matters. Left and right have disagreed about ownership, markets, planning, wages, exploitation, freedom and redistribution, but they have shared one enormous assumption. Human beings are needed because their labour is needed.
Adam Smith, Karl Marx, John Maynard Keynes, Friedrich Hayek and Milton Friedman are normally treated as representatives of radically different traditions. In many ways, they are. Smith gives us specialisation and markets, Marx gives us labour exploitation and class struggle, Keynes gives us demand and employment, Hayek gives us dispersed knowledge and the price system, Friedman gives us monetarism and market liberalism. Yet seen from far enough away, they all belong to the same age. They are thinkers of the capitalist-industrial world, in which production depends on human labour and capital matters largely because it organises, directs, equips, disciplines or replaces parts of that labour.
