Maynard Keynes on How to Be a Good Economist

From Facebook, April 11, 2011

Since the name of Keynes is back to being used somewhat in vain around the world, it may be appropriate to recall Maynard Keynes’s description of his own role-model as an economist, his master Alfred Marshall.

“The study of economics does not seem to require any specialised gifts of an unusually high order.  Is it not, intellectually regarded, a very easy subject compared with the higher branches of philosophy and pure science?  Yet good, or even competent, economists are the rarest of birds.  An easy subject , at which very few excel!  The paradox finds its explanation, perhaps, in that the master-economist must possess a rare *combination* of gifts.  He must reach a high standard in several different directions and must combine talents not often found together.  He must be mathematician, historian, statesman and philosopher — in some degree. He must understand symbols and speak in words. He must contemplate the particular in terms of the general, and touch abstract and concrete in the same flight of thought. He must study the present in the light of the past for the purposes of the future. No part of man’s nature or his institutions must lie entirely outside his regard. He must be purposeful and disinterested in a simultaneous mood: as aloof and incorruptible as an artist, yet sometimes as near the earth as a politician.”

JM Keynes “Alfred Marshall, 1842-1924” in Memorials of Alfred Marshal, edited by AC Pigou, 1925, p. 12.

Keynes himself was trained as and always thought like a mathematician, though he invariably spoke in words about practical realities. Marshall was his master, and so too, to a lesser extent, was his father, Neville Keynes.

I came to quote Keynes’s statement in Chapter 9 “Mathematical Economics and Reality” of my 1989 book *Philosophy of Economics*...

 

One of many reasons John R Hicks was a great economist

Professor Sir John Hicks (1904-1989) was among the greatest of 20th Century economists.  I was much honoured by his letter to me of May 1 1984 sent to Blacksburg, where he acknowledged his departure in later life from the position he had taken in 1934 and 1939 on the foundations of demand theory.  (The context of our correspondence had to do with my criticism of the young Hicks and support for the ghost of Alfred Marshall.)

He later sent me a copy of his Wealth and Welfare: Collected Essays on Economic Theory, Vol. I (Cambridge, Mass.: MIT Press, 1981) as a gift.

In Philosophy of Economics, I said about this “It may be a sign of the times that economists, great and small, rarely if ever disclaim their past opinions; it is therefore an especially splendid example to have a great economist like Hicks doing so in this matter.”  It was remniniscent of Gottlob Frege’s response to Russell’s paradox; Philosophy of Economics described Frege’s “Letter to Russell”, 1902 (Heijenoort, From Frege to Gödel, pp. 126-128) as  “a document which must remain one of the most noble in all of modern scholarship; a fact recorded in Russell’s letter to Heijenoort.”

Milton Friedman: A Man of Reason, 1912-2006

A Man of Reason


Milton Friedman (1912-2006)

 

First published in The Statesman, Perspective Page Nov 22 2006

 

Milton Friedman, who died on 16 November 2006 in San Francisco, was without a doubt the greatest economist after John Maynard Keynes. Before Keynes, great 20th century economists included Alfred Marshall and Knut Wicksell, while Keynes’s contemporaries included Irving Fisher, AC Pigou and many others. Keynes was followed by his younger critic FA Hayek, but Hayek is remembered less for his technical economics as for his criticism of “socialist economics” and contributions to politics. Milton Friedman more than anyone else was Keynes’s successor in economics (and in applied macroeconomics in particular), in the same way David Ricardo had been the successor of Adam Smith. Ricardo disagreed with Smith and Friedman disagreed with Keynes, but the impact of each on the direction and course both of economics and of the world in which they lived was similar in size and scope.

 

Friedman’s impact on the contemporary world may have been largest through his design and advocacy as early as 1953 of the system of floating exchange-rates. In the early 1970s, when the Bretton Woods system of adjustable fixed exchange-rates collapsed and Friedman’s friend and colleague George P. Shultz was US Treasury Secretary in the Nixon Administration, the international monetary system started to become of the kind Friedman had described two decades earlier. Equally large was Friedman’s worldwide impact in re-establishing concern about the frequent cause of macroeconomic inflation being money supply growth rates well above real income growth rates. All contemporary talk of “inflation targeting” among macroeconomic policy-makers since the 1980s has its roots in Friedman’s December 1967 presidential address to the American Economic Association. His main empirical disagreement with Keynes and the Keynesians lay in his belief that people held the intrinsically worthless tokens known as “money” largely in order to expedite their transactions and not as a store of value – hence the “demand for money” was a function mostly of income and not of interest rates, contrary to what Keynes had suggested in his 1930s analysis of “Depression Economics”. It is in this sense that Friedman restored the traditional “quantity theory” as being a specific theory of the demand for money.

 

Friedman’s main descriptive work lay in the monumental Monetary History of the United States he co-authored with Anna J. Schwartz, which suggested drastic contractions of the money supply had contributed to the Great Depression in America. Friedman made innumerable smaller contributions too, the most prominent and foresighted of which had to do with advocating larger parental choice in the public finance of their children’s school education via the use of “vouchers”. The modern Friedman Foundation has that as its main focus of philanthropy. The emphasis on greater individual choice in school education exemplified Friedman’s commitments both to individual freedom and the notion of investment in human capital.

 

Friedman had significant influences upon several non-Western countries too, most prominently India and China, besides a grossly misreported episode in Chile. As described in his autobiography with his wife Rose, Two Lucky People (Chicago 1998), Friedman spent six months in India in 1955 at the Government of India’s invitation during the formulation of the Second Five Year Plan. His work done for the Government of India came to be suppressed for the next 34 years. Peter Bauer had told me during my doctoral work at Cambridge in the late 1970s of the existence of a Friedman memorandum, and N. Georgescu-Roegen told me the same in America in 1980, adding that Friedman had been almost insulted publicly by VKRV Rao at the time after giving a lecture to students on his analysis of India’s problems.

 

When Friedman and I met in 1984, I asked him for the memorandum and he sent me two documents. The main one dated November 1955 I published in Hawaii on 21 May 1989 during a project on a proposed Indian “perestroika” (which contributed to the origins of the 1991 reform through Rajiv Gandhi), and was later published in Delhi in Foundations of India’s Political Economy: Towards an Agenda for the 1990s, edited by myself and WE James.

 

The other document on Mahalanobis is published in The Statesman today for the first time, though there has been an Internet copy floating around for a few years. The Friedmans’ autobiography quoted what I said in 1989 about the 1955 memorandum and may be repeated: “The aims of economic policy (in India) were to create conditions for rapid increase in levels of income and consumption for the mass of the people, and these aims were shared by everyone from PC Mahalanobis to Milton Friedman. The means recommended were different. Mahalanobis advocated a leading role for the state and an emphasis on the growth of physical capital. Friedman advocated a necessary but clearly limited role for the state, and placed on the agenda large-scale investment in the stock of human capital, encouragement of domestic competition, steady and predictable monetary growth, and a flexible exchange rate for the rupee as a convertible hard currency, which would have entailed also an open competitive position in the world economy… If such an alternative had been more thoroughly discussed at the time, the optimal role of the state in India today, as well as the optimum complementarity between human capital and physical capital, may have been more easily determined.”

 

A few months before attending my Hawaii conference on India, Friedman had been in China, and his memorandum to Communist Party General Secretary Zhao Ziyang and two-hour dialogue of 19 September 1988 with him are now classics republished in the 1998 autobiography. Also republished there are all documents relating to Friedman’s six-day academic visit to Chile in March 1975 and his correspondence with General Pinochet, which speak for themselves and make clear Friedman had nothing to do with that regime other than offer his opinion when asked about how to reduce Chile’s hyperinflation at the time.

 

My association with Milton has been the zenith of my engagement with academic economics, with e-mails exchanged as recently as September. I was a doctoral student of his bitter enemy yet for over two decades he not only treated me with unfailing courtesy and affection, he supported me in lonely righteous battles: doing for me what he said he had never done before, which was to stand as an expert witness in a United States Federal Court. I will miss him much though I know that he, as a man of reason, would not have wished me to.

Subroto Roy

Alfred Marshall (1842-1924)

Alfred Marshall (1842-1924), founder of modern economics, master of Maynard Keynes, concluding his 1885 Inaugural Lecture: “It will be my most cherished ambition, my highest endeavour, to do what with my poor ability and my limited strength I may, to increase the numbers of those, whom Cambridge, the great mother of strong men, sends out into the world with cool heads but warm hearts, willing to give some at least of their best powers to grappling with the social suffering around them; resolved not to rest content till they have done what in them lies to discover how far it is possible to open up to all the material means of a refined and noble life”.