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| Western Economists 20th-Century Economists |
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| Full name | Frank Hyneman Knight |
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| Birth | November 7, 1885 McLean County, USA |
| Death | April 15, 1972 (aged 86) |
| Main interests | economics |
| Notable ideas | Knightian uncertainty |
Frank Hyneman Knight (November 7, 1885 - April 15, 1972) was an important economist of the twentieth century. He was born in McLean County, Illinois in a devoutly Christian family of farmers. He never completed high school but was admitted in 1905 to the American University in Tennessee. He graduated in 1911 from Milligan College. At the University of Tennessee he obtained a B.S. and an M.A. (the latter in German) in 1913. He then moved to Cornell University for doctoral studies. His initial main subject was philosophy, but he soon switched to economics. He studied with Alvin Johnson and Allyn Young, who both supervised the work on his dissertation, that was completed in 1916 under the title Cost, Value and Profit. Knight would subsequently revise it for publication under its more familiar name Risk, Uncertainty and Profit (1921).
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Jointly with Jacob Viner, Knight presided over the Department of Economics at the University of Chicago from the 1920s to the late 1940s, and played a central role in setting the character of that department that was perhaps only comparable to Schumpeter's tenure over Harvard; Robbins's at the L.S.E or Paul Samuelson's at MIT.
His famous dissertation Risk, Uncertainty and Profit (1921) remains one of the most interesting reads in economics even today. In it, Knight made his famous distinction between "risk" (randomness with knowable probabilities) and "uncertainty" (randomness with unknowable probabilities), set forth the role of the entrepreneur in a distinctive theory of profit and gave one of the earliest presentations of the now-famous law of variable proportions in the theory of production.
While irreducibly Neoclassical in a general sense, Knight's peculiar economics were a direct inheritance of his Cornell professor, Herbert J. Davenport and what was then called the "American Psychological School" which sought to ground the Marginalist high theory of Jevons, Wicksteed and the Austrians in the relativist foundations of Thorstein Veblen's methodology.
Like Davenport, the notoriously belligerent Knight criticized other schools on several accounts while also adopting some of their ideas: for instance, from the Walrasians he adopted the idea of theoretical rigor and viewing the economy in terms of multiple markets, but disparaged their mathematical propensities; from the Austrians he adopted their theory of alternative cost, but attacked their theory of capital; from the Marshallians he adopted their literary tone, but attacked their lack of rigor and their "real" theory of cost; from the Ricardians, he adopted a concern with the interaction between social structure and theory but attacked the objectivist basis of their theory; from the Marxians, he adopted many of their ideas about the ethical critique of capitalism as well as its tendency towards the concentration of capital, but he abhorred the labor theory of value; from the Institutionalists, he adopted their concern with social impact on behavior and evolution, but he opposed their empirical techniques and conclusions ("history is to be sensed, not plotted", as Knight put it).
The famously opinionated Knight used his numerous book reviews in Chicago's Journal of Political Economy as a vehicle for his thoughts on many subjects. As a result, he was embroiled in many debates with the most prominent economists of his day ranging over capital theory (versus Hayek, Mises and the Austrians, e.g. 1933, 1935, 1937), welfare theory (versus Pigou, e.g. 1924), Keynesian theory (1937) and positivist methodology (versus Hutchison (1940)).
Thus, Knight amalgamated much of what was contained all over the spectrum of economic theory - but without once losing the skeptic's dissecting eye. Perhaps because he was endowed with enough of the demeanour and knowledge of a philosopher, sociologist and historian as well as an economist, he was able to appear as a kindred spirit to all schools as well as an opponent at the same time.
As noted, Knight was one of the leaders of the inter-war "Chicago School" (although we must keep in mind that during his stay there, the Chicago School had a much different tone than it acquired later). Yet, even then, he managed to remain an outsider in his own kingdom. Knight's well-known dislike of quantitative methods and especially empirical techniques brought him into conflict with several colleagues - notably, Henry Schultz, Paul Douglas and Oskar Lange. His opposition to the Marshallian propensities of his co-giant, Jacob Viner, earned him the latter's respect but not necessarily his friendship. Even Knight's own unlikely protegé Henry Simons, differed substantially from Knight on most matters.
Like Schumpeter (whom he both admired and resembled in many ways), Knight was an avid proponent of a cosmopolitan laissez-faire – but he did so on unique, "non-consequentialist" grounds. As is evident in his famous Ethics of Competition (1923) and in other works on ethics throughout his life, Knight does not regard the capitalist system as ethically defensible. Capitalism, he claims, does not produce what people want but merely creates the wants for what it produces - "the freest individual. ..is in large measure a product of the economic environment that has formed his desires and needs, given him whatever marketable productive capacities he has, and which largely controls his opportunities." (Knight, 1923). Furthermore, he argued that there was a tendency in market systems towards monopoly, that the "efficiency" of markets was misleading for there was no sense of "usefulness" of its output to society, that the marginal productivity thesis had erroneous ethical implications as "the income does not go to "factors" but to their owners. ..and ownership of personal or material productive capacity is based upon a complex mixture of inheritance, luck and effort, probably in that order of relative importance" (Knight, 1923).
Knight's peculiar ethical assault on the market system and "apologetic economics" did not diminish his penchant for laissez-faire as a policy conclusion. The economy, he argued, is a very complex and unstable thing. Programs of government intervention are too simplistic and do not take into account the complexities of a market economy - thus making interventionism even more dangerous. Laissez-faire is recommended, he argued, not because it "works" (for it patently does not) but rather because it holds individual freedom as an absolute good and the alternative may be much worse.
As a result, Knight's position is quite the reverse of the Second Chicago School economists of the 1960s, (i.e. Friedman, Stigler and company). The Second Chicago School tended to argue the positivist line that laissez-faire is desirable because it delivers the goods, and not because it is a good in itself. Indeed, throughout his life, Knight explicitly deplored and attacked many of the assumptions that the Second Chicago School held dear: e.g. the denial of the importance of monopolistic competition, the assumption of consumer sovereignty, stable preferences, efficient outcomes of markets, empirical-intuitive reasoning, interdisciplinary imperialism, etc.
All these items are precisely and directly opposed to virtually every important argument and position of Knight's. Indeed, the later Chicago School's declared "positivist" methodology was wryly characterized by Knight as "the emotional pronouncement of value judgements condemning emotion and value judgements which seems to [me] a symptom of a defective sense of humor" (Knight, 1940). However, we must grant that Knight's theories of capital (Knight viewed all factors as capital to a greater or lesser degree) and his "public choice" view of political behavior could be said to have persisted in at least some quarters of the modern Chicago School.
In this sense, then, Knight, like Schumpeter, carved a unique path in economics – being claimed by many schools of thought as one of their own, without really belonging to any. Unfortunately, also like Schumpeter, although he educated and influenced many students, Knight failed to acquire any followers and failed to build up a distinctive "school of thought" around himself. We can see some traces of his persective in the work of Kenneth E. Boulding, Martin Bronfenbrenner, James M. Buchanan and George J. Stigler, but they can hardly be called "Knightians" in any meaningful sense.
Nobel laureate Milton Friedman was one of Knight's many students at the University of Chicago.
Knight invented the notion of what has come to be called Knightian uncertainty, where he made a distinction between risk and uncertainty. He argued that situations with risk were those where decision making was made faced with unknown outcomes but known ex-ante probability distributions. He argued that these situations, where decision making rules such as maximizing expected utility can be applied, differ in a deep way from those where the probability distribution of a random outcome is unknown. While most economists today would recognize the difference between the two situations, there has been little progress in terms of writing models and doing empirical tests of problems with Knightian uncertainty. A possible exception is the "Markets from Networks" model developed by sociologist Harrison White in 2002.
He entered a famous debate with A.C. Pigou over social costs. He also made contributions to the arguments about toll roads. He said that rather than congestion justifying government tolling of roads, privately owned roads would set tolls to reduce congestion to its efficient level. In particular, he developed the argument that forms the basis of analysis of traffic equilibrium, and has since become known as Wardrop's Principle:
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| NAME | Knight, Frank Hyneman |
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| SHORT DESCRIPTION | |
| DATE OF BIRTH | November 7, 1885 |
| PLACE OF BIRTH | McLean County, Illinois |
| DATE OF DEATH | April 15, 1972 |
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