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Richard Kahn's fellowship dissertation: The fate of ‘The Economics of the Short Period’

Abstract In 1930, Richard Kahn became a fellow of King's College, Cambridge, on the basis of his book-length dissertation ‘The Economics of the Short Period.’ It was finally published in the 1980s. Why did he not publish his thesis in the 1930s, when it would have made a substantial impact? We present two arguments. In 1932/33, Joan Robinson published many of Kahn's main ideas, rendering subsequent publication by him derivative. And by the mid-1930s, Kahn discovered that parts of his dissertation left untouched by Robinson were no longer new or distinctive because of rapid progress in research on imperfect and monopolistic competition.