Friedrich Hayek on Milton Friedman

“I don't know what monetarism is. If monetarism just means a good old-fashioned quantity theory, of course it has not failed. If it means the particular version of Milton Friedman, I think it has because he imagines that he can achieve — ascertain — a clear quantity relationship between a measurable quantity of money and the price level. I don't think that is possible. In fact, just about 40 years ago in the opening sentences of my book, Prices and Production, I wrote that it would be a great misfortune if people ever cease to believe in the quantity theory of money. It would be even worse ever to believe it literally. And that's exactly what Milton Friedman does.”

“I don't like criticizing Milton Friedman not only because he is an old friend but because, outside of monetary theory, we are in complete agreement. Our general views on what is desired and what is not are almost identical until we get on to money. But if I told him what I said before, that I very much doubt whether monetary policy has ever done anything good, he would disagree. He personally is convinced that a good monetary policy is a foundation for everything.”

“You see, in one respect, Milton Friedman is still a Keynesian, not on monetary theory, but on methodology. Keynes, very much against his own intentions, and it still dominates the economic theory, and Milton Friedman is one of the apostles of macroeconomics, which has the effect that while we completely agree on general economic policy, we wholly disagree on monetary policy, because his theory is based on supposed regularities between statistical magnitudes.”