Ludwig von Mises (1881-1973) and Friedrich Hayek (1899-1992) were perhaps the foremost defenders of the free market and limited government during the mid-twentieth century ascendancy of Keynesian economics. Mises highlighted the problem of economic calculation in non-market economics. He saw the price system as the basis of economic calculation and emphasized the importance of sound money for it to work properly. Mises created an all-encompassing...