Thursday, December 10, 2015

MILTON FRIEDMAN'S ECONOMICS

FROM BUSINESS WORLD OF 25 NOVEMBER 2006


Milton Friedman


Milton Friedman was no doubt a formidable liberal; he campaigned actively for free markets and a minimum state. As such, he would be of interest to likeminded liberals, for few people ever read ideologies they disagree with. As a liberal, I have hardly read fellow liberals; I find ideologies I agree with even more boring than those I disagree with. But Friedman was an exception: he was a first-class empirical economist. He marshaled facts to support his hypotheses, and more often, to demolish those he disagreed with; I found his method more instructive than his madness.
Seeing his origins, it is surprising than Friedman became a liberal. He came from an poor Jewish immigrant family from Eastern Europe. He was extremely hard up as a student. He encountered anti-Semitism as a young man. Such early experience should have made him an advocate of laws to ensure fairness and state assistance for the underprivileged. But it had just the opposite effect: as he said, “The rich in Ancient Greece would have benefitted hardly at all from modern plumbing: running servants replaced running water. Television and radio? The Patricians of Rome could enjoy the leading musicians and actors in their home, could have the leading actors as domestic retainers. Ready-to-wear clothing, supermarkets - all these and many other modern developments would have added little to their life. The great achievements of Western Capitalism have redounded primarily to the benefit of the ordinary person. These achievements have made available to the masses conveniences and amenities that were previously the exclusive prerogative of the rich and powerful.”
Milton Friedman did his MA at 21 in 1933; but then he could not get an academic position. He wrote a paper on “Professor Pigou’s method for measuring elasticities of demand from budgetary data” and sent it to The Economic Journal in 1934, but John Maynard Keynes, who was its editor, rejected it because Pigou, his teacher and fellow Kingsman, disagreed with it (it was published in Quarterly Journal of Economics). When the US entered the War, Friedman joined the Treasury in 1941. It was 1946 before he finished his Ph D, on income from independent professional practice, hardly an earthshaking subject. But through those long years he had done a lot of figure work, and worked under America’s best empirical economists – Arthur Burns, Wesley Clare Mitchell, Simon Kuznets and Henry Schultz. That is what made him so solid a protagonist; it is difficult to argue with facts, especially properly analyzed statistical facts.
Friedman got tenure in Chicago University in 1946; then he could concentrate on serious economics. In the next 20 years, he took various parts of the Keynesian model and took them apart. By the end of the 1960s, the neoclassical model, which Keynes had demolished with such verve in his General Theory, was back in the saddle, at any rate in the US.
First Friedman attacked the consumption function, with data on professional incomes he had collected 20 years earlier. He showed that temporary fluctuations in people’s incomes were largely reflected in their savings; their consumption was much less sensitive. It followed that the marginal propensity to save was high, which would make the Keynesian multiplier small. If that were so, expenditure injected into an economy to take it out of depression would have a much smaller expansionary effect than Keynes posited.
Then he showed that historically, there was close correlation between the course of money supply and prices; that implied that the IS-LM construct, which asserted that a change in money supply would impact the rate of interest, and thereby the rate of investment, was wrong. That punched a hole in cheap money policy as a way out of depressions.
Finally, he attacked Keynes’s idea of money illusion: that workers might resist a reduction in wages, but would not resist a fall in their real wages as a result of a rise in prices. According to Friedman, when prices rose, employers would experience a rise in their profits and employ more people. But that effect would be temporary; increased competition among employers for workers would soon raise wages and bring down employment. In other words, a stimulus to aggregate expenditure would be only temporary; eventually, employment would soon be back to its “natural” level, prices being all that changed.

These were some of the themes of his prolific academic writings while he was in Chicago. Then in 1976, he retired and moved to San Francisco. There he bought a beautiful penthouse apartment overlooking the Bay, and thence he sallied forth every once in a while to give talks or make a TV series. That is where I met him six years ago. He was very affable; not at all the fierce intellectual fighter that his writings gave an impression of. He had been twice to India: once in the 1960s, when Professor Prasanta Mahalanobis invited so many eminent economists to Delhi and Calcutta, and then while making the PBS series in the 1970s. But he did not have much of an impression of it; India remains a waste land for liberalism.