Karl Marx wrote extensively on crisis but never presented a coherent theory of crisis. Samezo Kuruma, a Japanese Marxian economist, aimed to complete Marx's unfinished theory. Starting from Marx's observation that the crises of the world market are the 'real concentration and forcible adjustment of all the contradictions of the bourgeois economy', Kuruma seeks to grasp the inherent contradictions that drive forward and limit capitalism. His focus on the contradictory dynamics of capitalism sets him apart from Marxian thinkers who try to identify a single, primary cause of crisis. This volume brings together all of his writings related to crisis.