In the years prior to the Great Depression, Hawley, Knight, Schumpeter et al. challenged the classical version of economics. For a period of time during the 1920s their research and learned discussion focused on the enterprise and the entrepreneur as the causal force in creating wealth. But with the shadowed decade of the Depression and the dark years of World War II, the examination of the “fourth leg” in economic theory was abandoned in favour of the American New Deal and the theories of Lord Keynes. Those who followed Keynes also put their own spin to an economic doctrine that seemed to work, and they continued to foster its direction long after the original assumptions and premises had lost their relevance.