The twentieth century's dominant myth was that of a "rational capitalism." The two economists who did the most to promote this idea were John Maynard Keynes and Joseph Schumpeter. Both were responding to the great historical crisis of capitalism manifested in the First World War, the Great Depression, and the Second World War. In the wake of the greatest set of horrors the world had ever seen, accompanied also by the rise of an alternative, contending system in the Soviet Union, it was necessary for capitalism following the Second World War to reestablish itself ideologically as well as materially. In terms of the ideological requirement, the two economists who accomplished this most effectively were Keynes and Schumpeter—not simply because they epitomized the best in bourgeois economic ideology, but also because they were the leading representatives of bourgeois economic science. What they set out in their analyses were the requirements of a rational capitalism and at least the hope that these requirements would be achieved.
This article can also be found at the Monthly Review website, where most recent articles are published in full.