Cutting through the superficiality of the Fabian theories, Ted Grant defends the basic Marxist position, that as long as the market dominated the economy, then there would inevitably be cycles of boom and slump. Explaining the causes for the longevity of the boom, he also points out its limitation and the inevitability, at a later stage, of new recessions and slumps. This article, although directed particularly towards the British economy, was no less relevant to the other main capitalist countries, where similar conditions prevailed and similar arguments raged.