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Many economists have professed to analyze information; relatively few have considered carefully the problems of knowledge. Among those who have, Hayek is pre-eminent.
--
Brian Loasby, "The Mind and Method of the Economist", London: Edward Elgar, p. 38

 

Friedrich Hayek

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Q. [McCallum] … are there other economists who have had a really major influence on your thinking? A. [Melzer] Well I mentioned Hayek. There are two ways. One is because of my interest in political economy. The other way is that Hayek was a pioneer in the use of information in economics. One of the papers that Karl and I wrote together that I continue to like was a paper called "The Uses of Money". In that paper we tried to incorporate information and the cost of information to explain why people use money. One of Hayek's most basic ideas is that institutions are a way of reducing uncertainty. Man struggles to find institutional arrangements which on average make life a bit more predictable. Our "Uses of Money" is not so much about money as we conventionally think about it, it's about the idea of a medium of exchange, the function of an institution called the medium of exchange and how the medium of exchange as an institution resolves a part of peoples uncertainty about the future.

 

Friedrich Hayek

 

The dilemma of a socialized system is that the information flow overwhelms a centralized system if it is open to new ideas and data, that closing the system and forcing the plan to work forecloses alternatives and risks unhedged mistakes, and that decentralizing without real markets poses the problems discussed by Hayek. These information problems permeate virtually all economic processes.

 

Friedrich Hayek

 

One of the most original and most important ideas advanced by Hayek is the role of the "division of knowledge" in economic society … [But if] I had to single out the area in which Hayek's contributions were the most fundamental and pathbreaking, I would cast my vote for the theory of capital. As I said before, when I reviewed Hayek's book on The Pure Theory of Capital, it is "my sincere conviction that this work contains some of the most penetrating thoughts on the subject that have ever been published." If two achievements may be named, I would add Hayek's contributions to the the theory of economic planning. Most of what has been written on systems analysis, computerized data processing, simulation of market processes, and other techniques of decision-making without the aid of competitive markets, appears shallow and superficial in the light of Hayek's analysis of the 'division of knowledge', its dispersion among masses of people. Information in the minds of millions of people is not available to any central body or any group of decision-makers who have to determine prices, employment, production, and investment but do not have the signals provided by a competitive market mechanism. Most plans for economic reform in the socialist countries seem to be coming closer to the realization that increasing decentralization of decision-making is needed to solve the problems of rational economic planning.

 

Friedrich Hayek

 

Hayek's adversaries — Oskar Lange and company — argued that a market system had to be inferior to a centrally-planned system: at the very least, a centrally-planned economy could set up internal decision-making procedures that would mimic the market, and the central planners could also adjust things to increase social welfare and account for external effects in a way that a market system could never do. Hayek, in response, argued that the functionaries of a central-planning board could never succeed, because they could never create both the incentives and the flexibility for the people-on-the-spot to exercise what Scott calls metis. Today all economists — even those who are very hostile to Hayek's other arguments … agree that Hayek and company hit this particular nail squarely on the head. Looking back at the seventy-year trajectory of Communism, it seems very clear that Hayek … [is] right: that its principal flaw is its attempt to concentrate knowledge, authority, and decision-making power at the center rather than pushing the power to act, the freedom to do so, and the incentive to act productively out to the periphery where the people-on-the-spot have the local knowledge to act effectively.

 

Friedrich Hayek

 

Since I shall be indicating my disagreement with some of the points made by Professor IsraelKirzner, let me stress that I am in complete sympathy with his point of departure, namely, the emphasis on the dispersion of information among economic decision-making units (called by him, "Hayek's knowledge problem") and the consequent problem of transmission of information among those units.
Much of my own research work since the 1950s has been focused on issued in welfare economics viewed from an informational perspective. The ideas of Hayek (whose classes at the London School of Economics I attended during the academic year 1938-39) have played a major role in influencing my thinking and have been so acknowledged.

 

Friedrich Hayek