In 1973 the British International Marxist Group issued a forty-pence pamphlet that tried to do something unusually ambitious: not to retell the story of permanent revolution, but to prove it — to derive Trotsky's theory from Marx's own economics of the world market.The result is one of the boldest short statements the Trotskyist tradition produced. Across five tightly argued sections, "John Robens" grounds permanent revolution in the law of uneven and combined dev...