"The group’s members depicted themselves as ‘liberals’ (in the traditional European sense) because of their fundamental commitment to ideals of personal freedom. The neoliberal label signalled their adherence to those free market principles of neoclassical economics that had emerged in the second half of the nineteenth century [...] to displace the classical theories of Adam Smith, David Ricardo, and, of course, Karl Marx. Yet they also held to Adam Smith’s view that the hidden hand of the market was the best device for mobilizing even the basest of human instincts such as gluttony, greed, and the desire for wealth and power for the benefit of all. Neoliberal doctrine was therefore deeply opposed to state interventionist theories, such as those of John Maynard Keynes, which rose to prominence in the 1930s in response to the Great Depression. Many policy-makers after the Second World War looked to Keynesian theory to guide them as they sought to keep the business cycle and recessions under control. The neoliberals were even more fiercely opposed to theories of centralized state planning, such as those advanced by Oscar Lange working close to the Marxist tradition. State decisions, they argued, were bound to be politically biased depending upon the strength of the interest groups involved [...]. State decisions on matters of investment and capital accumulation were bound to be wrong because the information available to the state could not rival that contained in market signals."