Reappraising value of money in capitalism

Marx predicted that capitalism would become a global phenomenon, but he never satisfactorily resolved the theoretical (but highly political) conundrum at the heart of his analysis of capitalism: by what precise mechanism would his economic model, which predicted a falling rate of profit and growing crisis, become reality? He would have been puzzled and disoriented by the course of 20th-century history, but the philosopher and political scientist in him would have insisted on beginning a new analysis of contemporary capitalism and its contradictions.