"I prefer true but imperfect knowledge, even if it leaves much indetermined and unpredictable, to a pretence of exact knowledge" - F.A. Hayek"The financial crisis invalidated a naïve notion of "efficient markets," but the most sophisticated version is still viable. Whereas the invalidated version holds that markets never err and always adjust instantaneously, the sophisticated version, associated with the ideas of Adam Smith and F. A. Hayek, holds that markets mobilize individuals to realize gains from trade and to innovate and thereby produce generalized prosperity."
"In the 1940s, Hayek warned his fellow economists of the misleading standards of perfect competition and static efficiency in assessing the market economy. As he wrote in Individualism and Economic Order, "[T]hese adjustments are probably never 'perfect' in the sense which the economist conceives them in his equilibrium analysis. But I fear that our theoretical habits of approaching the problem with the assumption of more or less perfect knowledge on the part of almost everyone has made us somewhat blind to the true function of the price mechanism and led us to apply rather misleading standards in judging its efficiency" (1948, 87)"
"The great free market economic thinkers from Adam Smith to F. A. Hayek never argued that individuals were hyper-rational actors possessed with full and complete information, operating in perfectly competitive markets.... Efficient markets are an outcome of a process of discovery, learning, and adjustment, not an assumption going into the analysis."
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