Must-Read: Paul Volcker: Cardiff Garcia’s Long Chat with Paul Volcker

Must-Read: This from Paul Volcker strikes me as really substantially wrong:

Paul Volcker: Cardiff Garcia’s Long Chat with Paul Volcker: “I would never interpret it as you have to have [inflation] exactly zero…

Prices tend to go up or down a little bit depending upon whether the economy’s booming or not booming. And I can’t understand making a fetish of a particular number, frankly. What you do want to create is a situation where people don’t worry about prices going up and they don’t make judgments based upon fears of inflation instead of straightforward analysis of what the real economy is doing. And I must confess, I think it’s something of a moral issue…. You shouldn’t be kind of fooling people all the time by having inflation they didn’t expect. Now, they answer, well, if they expect it, it’s okay. But if they expect it, it’s not doing you any good anyway. Those arguments you set forward don’t hold water if you’re expecting it…

Regress in macroeconomic knowledge over the past 83 years

Today, in 2016, Raghu Rajan thinks helicopter drops are “a step too far into the dark…”

His predecessor 83 years ago at the University of Chicago, Jacob Viner, thought they were one of the obvious technocratic steps to take, along with further raising the monetary base (i.e., in his day going off of the gold standard) even with short-term safe nominal interest rates at the zero lower bound (as they also were in his day).

Here’s Raghu:

Raghuram Rajan 2016): “If you read the writings of economists…

…it is not clear what’s keeping us still so slow, seven or eight years after the crisis. Ken Rogoff would say it is still the debt overhang and the deleveraging. [Robert] Gordon and others might say it is low productivity and still others may say it is the poorly understood consequences of population aging. But what do we do? And here I think there is more of a consensus that monetary policy pretty much has run its course. There are still guys who are looking for helicopter drops of money but I think that is a step sort of too far into the dark, where I am not sure there is a political consensus to do that in the major economies, if it comes to that…

Here’s Jacob:

Jacob Viner (1933): Balanced Deflation, Inflation, or More Deflation: “If going off the gold standard were as simple a matter for us…

…as for England and Canada, I would not only advocate it, but if [it]… did not suffice to lower substantially the internal purchasing power of the dollar I would recommend its accompaniment by increased government expenditures financed by the printing press or by loans…. England and… the other countries which went off the gold standard in 1931… [made] too restrained use of the freedom which the departure from the gold standard gave them them…. The countries that went off the gold standard have nevertheless weathered the economic storm much better…

We all agree that economies today are “so slow” and inflation pressures are by and large absent. What does Raghu think he knows today that Jacob did not–what have we learned in the past 83 years–that has turned helicopter drops from an obvious technocratic step to take to “a step too far into the dark”? What did Jacob think he knew that Raghu does not–what doctrines, true, false, or uncertain–because we have forgotten them?

Anyone? Anyone? Bueller?

Yes, in some (many) ways, our macro debate has lost intellectual ground since the 1930s. Why do you ask?

Last September, the illustrious Simon Wren-Lewis wrote a nice piece about the Bank of England’s thinking about Quantitative Easing: Haldane on Alternatives to QE, and What He Missed Out.

Simon’s bottom line was that Haldane was not just thinking inside the box, but restricting his thinking to a very small corner of the box:

[neither] discussion of the possibility that targeting something other than inflation might help… [nor] any discussion of helicopter money…

And this disturbs him because:

We rule out helicopter money because its undemocratic, but we rule out a discussion of helicopter money because ordinary people might like the idea…. Governments around the world have gone for fiscal contraction because of worries about the immediate prospects for debt. It is not as if the possibility of helicopter money restricts the abilities of governments in any way…. [While] it is good that some people at the Bank are thinking about alternatives to QE, which is a lousy instrument…. It is a shame that the Bank is not even acknowledging that there is a straightforward and cost-free solution…

It disturbs me too.

One reason it disturbs me is that a version of “helicopter money” was one of the policy options that Milton Friedman and Jacob Viner endorsed as the right policies to deal with the last time we were at the zero lower bound, stock Great Depression. Back in 2009 I quoted Milton Friedman (1972), “Comments on the Critics of ‘Milton Friedman’s Monetary Framework'”, quoting Jacob Viner (1933):

The simplest and least objectionable procedure would be for the federal government to increase its expenditures or to decrease its taxes, and to finance the resultant excess of expenditures over tax revenues either by the issue of legal tender greenbacks or by borrowing from the banks..

And Friedman continued:

[Abba] Lerner was trained at the London School of Economics [stock 1930s], where the dominant view was that the depression was an inevitable result of the prior [speculative] boom, that it was deepened by the attempts to prevent prices and wages from falling and firms from going bankrupt, that the monetary authorities had brought on the depression by inflationary policies before the crash and had prolonged it by “easy money” policies thereafter; that the only sound policy was to let the depression run its course, bring down money costs, and eliminate weak and unsound firms…. It was [this] London School (really Austrian) view that I referred to in my “Restatement” when I spoke of “the atrophied and rigid caricature [of the quantity theory] that is so frequently described by the proponents of the new income-expenditure approach and with some justice, to judge by much of the literature on policy that was spawned by the quantity theorists” (Friedman 1969, p. 51).

The intellectual climate at Chicago had been wholly different. My teachers… blamed the monetary and fiscal authorities for permitting banks to fail and the quantity of deposits to decline. Far from preaching the need to let deflation and bankruptcy run their course, they issued repeated pronunciamentos calling for governmental action to stem the deflation-as J. Rennie Davis put it:

Frank H. Knight, Henry Simons, Jacob Viner, and their Chicago colleagues argued throughout the early 1930’s for the use of large and continuous deficit budgets to combat the mass unemployment and deflation of the times (Davis 1968, p. 476)… that the Federal Reserve banks systematically pursue open-market operations with the double aim of facilitating necessary government financing and increasing the liquidity of the banking structure (Wright 1932, p. 162)….

Keynes had nothing to offer those of us who had sat at the feet of Simons, Mints, Knight, and Viner. It was this view of the quantity theory that I referred to in my “Restatement” as “a more subtle and relevant version, one in which the quantity theory was connected and integrated with general price theory and became a flexible and sensitive tool for interpreting movements in aggregate economic activity and for developing relevant policy prescriptions” (Friedman 1969, p. 52). I do not claim that this more hopeful and “relevant” view was restricted to Chicago. The manifesto from which I have quoted the recommendation for open-market operations was issued at the Harris Foundation lectures held at the University of Chicago in January 1932 and was signed by twelve University of Chicago economists. But there were twelve other signers (including Irving Fisher of Yale, Alvin Hansen of Minnesota, and John H. Williams of Harvard) from nine other institutions’…

“Helicopter money”–increases in the money stock used not to buy back securities but instead to purchase assets that are very bad substitutes for cash like the consumption expenditures of households, roads and bridges, the human capital of 12-year-olds, and biomedical research–could be mentioned as a matter of course as a desirable policy for dealing with an economy at the zero lower bound by Jacob Viner in 1933. But, apparently, central banks do not even want to whisper about the possibility. One interpretation is that, confronted with Treasury departments backed by politicians and elected by voters that have a ferocious and senseless jones for austerity even though g > r, central banks fear that any additional public recognition by them that fiscal and monetary policy blur into each other may attract the Eye of Austerity and so limit their independence and freedom of action.

If I were on the Federal Reserve Board of Governors or in the Court of the Bank of England right now, I would be taking every step to draw the line between fiscal policy and monetary policy sharply, but I would draw it in the obvious place:

  • Contractionary fiscal policies seek to lower the government debt (but with g > r or even g near r and hysteresis actually raise the debt-to-GDP ratio and possibly the debt).
  • Expansionary fiscal policies seek to raise the government debt (but with g > r or even g near r and hysteresis actually lower the debt-to-GDP ratio and possibly the debt).
  • Policies that neither raise or lower the debt ain’t fiscal policy, they are monetary policy.
  • Contractionary monetary policies reduce the money stock (and usually but do not have to raise the stock of government debt held by the private sector).
  • Expansionary monetary policies raise the money stock (and usually but do not have to lower the stock of government debt held by the private sector).

And if helicopter money leads Treasuries to protest that the money stock is growing too rapidly? (They cannot, after all, complain that the government debt stock is growing too rapidly because it isn’t.) The response is: Who died and put you in charge of monetary inflation-control policy? That’s not your business.

History: John Maynard Keynes Getting One Very Wrong

Here it is plain to me that Keynes has simply not understood John Hicks–call this Keynes “Keynes the Pre-Hicksian”:

John Maynard Keynes (1937): The General Theory of Employment: “There are passages which suggest that Professor Viner is thinking too much…

…in the more familiar terms of the quantity of money actually hoarded,and that he overlooks the emphasis I seek to place on the rate of interest as being the inducement not to hoard. It is precisely because the facilities for hoarding are strictly limited that liquidity preference mainly operates by increasing the rate of interest. I cannot agree that “in modern monetary theory the propensity to hoard is generally dealt with, with results which in kind are substantially identical with Keynes’, as a factor operating to reduce the ‘velocity’ of money.” On the contrary, I am convinced that the monetary theorists who try to deal with it in this way are altogether on the wrong track.

Again, when Professor Viner points out that most people invest their savings at the best rate of interest they can get and asks for statistics to justify the importance I attach to liquidity-preference, he is over- looking the point that it is the marginal potential hoarder who has to be satisfied by the rate of interest, so as to bring the desire for actual hoards within the narrow limits of the cash available for hoarding. When, as happens in a crisis, liquidity-preferences are sharply raised, this shows itself not so much in increased hoards–for there is little, if any, more cash which is hoardable than there was before–as in a sharp rise in the rate of interest, i.e. securities fall in price until those, who would now like to get liquid if they could do so at the previous price, are persuaded to give up the idea as being no longer practicable on reasonable terms. A rise in the rate of interest is a means alternative to an increase of hoards for satisfying an increased liquidity-preference.

Nor is my argument affected by the admitted fact that different types of assets satisfy the desire for liquidity in different degrees. The mischief is done when the rate of interest corresponding to the degree of liquidity of a given asset leads to a market-capitalization of that asset which is less than its cost of production…

It seems very clear that this Keynes has not yet read–or has not understood–John Hicks (1937), “Mr. Keynes and the ‘Classics’: A Suggested Interpretation”.

Keynes thinks that money demand consists of three terms:

  • kPY, the amount of money needed to grease the amount PY of total nominal spending,
  • S, the liquidity-preference speculative demand for money, and
  • -jr, a term that depends on increases in the interest rate r curbing the speculative demand for money, and also inducing people to economize on their transactions balances.

For a given money supply, M, this gives us a money demand-money supply equation:

M = kPY + S – jr

Jacob Viner wants to take this equation and rewrite it in quantity-theory terms as an LM-curve relation:

kPY = M – S + jr

Y = [M – S + jr]/Pk

Y = (M/P)V, with V = [1-(S/M)-(jr/M)]/k

An increase in Keynes’s liquidity preference S is thus a reduction in the velocity of money V associated with any interest rate r. This is what Viner means when he writes that:

In modern monetary theory the propensity to hoard is generally dealt with, with results which in kind are substantially identical with Keynes’, as a factor operating to reduce the ‘velocity’ of money.

And he is correct.

Keynes says he disagrees. He claims that the key effect of a rise in liquidity preference is not to reduce the velocity of money–to produce “increased hoards”–but rather to raise the interest rate r. And working through the IS-curve relation:

Y = C + I
C = co + (cy)Y
I = io – (ir)r
Y = [co + io]/(1-cy) – [ir/((1-cy)]r

This rise in r reduces real spending Y.

Keynes is right when he says that an increase in liquidity preference S reduces Y working through the IS-curve relationship. But Keynes is wrong when he says that implies that Viner is wrong. Viner is right too. The LM-curve and the IS-curve relations jointly determine Y and r. You can use either. In fact, you have to use both in order to get an answer, even if you are not aware that you are using both. That is what Hicks made clear. But Keynes does not know it. And I see no signs that Viner knows it either.

Must-Read: John Maynard Keynes (1937): The General Theory of Employment: Today’s Economic History

Must-Read: Today’s Economic History: John Maynard Keynes (1937): The General Theory of Employment: “There are passages which suggest that Professor Viner is thinking too much…

…in the more familiar terms of the quantity of money actually hoarded, and that he overlooks the emphasis I seek to place on the rate of interest as being the inducement not to hoard. It is precisely because the facilities for hoarding are strictly limited that liquidity preference mainly operates by increasing the rate of interest. I cannot agree that:

in modern monetary theory the propensity to hoard is generally dealt with, with results which in kind are substantially identical with Keynes’, as a factor operating to reduce the ‘velocity’ of money.

On the contrary, I am convinced that the monetary theorists who try to deal with it in this way are altogether on the wrong track.

Again, when Professor Viner points out that most people invest their savings at the best rate of interest they can get and asks for statistics to justify the importance I attach to liquidity-preference, he is over-looking the point that it is the marginal potential hoarder who has to be satisfied by the rate of interest, so as to bring the desire for actual hoards within the narrow limits of the cash available for hoarding. When, as happens in a crisis, liquidity-preferences are sharply raised, this shows itself not so much in increased hoards–for there is little, if any, more cash which is hoardable than there was before–as in a sharp rise in the rate of interest, i.e. securities fall in price until those, who would now like to get liquid if they could do so at the previous price, are persuaded to give up the idea as being no longer practicable on reasonable terms. A rise in the rate of interest is a means alternative to an increase of hoards for satisfying an increased liquidity-preference.

Nor is my argument affected by the admitted fact that different types of assets satisfy the desire for liquidity in different degrees. The mischief is done when the rate of interest corresponding to the degree of liquidity of a given asset leads to a market-capitalization of that asset which is less than its cost of production…

John Maynard Keynes (1937), “The General Theory of Employment”, Quarterly Journal of Economics 51:2 (February), pp. 209-223 http://www.jstor.org/stable/1882087