Washington: We have a problem

John Cochrane makes the case in the WSJ that everything is back to normal. Hunky Dory, rosy tinted, don’t panic, keep-calm-and-carry-on normal. He points out that inflation is under control. We have not entered a deflationary death-spiral and unemployment is back in reasonable territory.

Here is what John learned from the Great Recession.
The [QE] experiment was huge, and the lessons are clear. The economy is stable, not subject to Keynesian “spirals” requiring constant Fed intervention. And when reserves pay the same rate as bonds, banks do not care which one they hold. So even massive bond purchases do not cause inflation. Quantitative easing is like trading a $20 bill for $10 and $5 bills. How would that make anyone spend more money?
John sees the world through the lens of a model where QE can’t matter. Doubling down on this view…
As then Fed Chairman Ben Bernanke said in January 2014: “The problem with QE is that it works in practice, but it doesn’t work in theory.” That’s a big problem. If we have no theory why something works, then maybe it doesn’t really work.
My emphasis.

I'm not sure we’re living on the same planet. In fact, I know we’re not living on the same planet. John is on planet Chicago. I'm on planet UCLA.

On my planet, QE has some pretty big effects. By increasing the size of the monetary base, the Fed averted an even bigger deflation than the one that occurred.

Here’s the evidence for that. Figure 1 shows how the Federal Reserve Board responded to the financial crisis. The solid line, measured in percent per year on the right-hand axis, measures the expected rate of inflation. The boundary of the shaded region, measured on the left-hand axis in millions of dollars, is the size of the Federal Reserve’s balance sheet.

Figure 1
From January of 2007, through September of 2008, expected inflation fluctuated between two percent and three and a half percent. When Lehman Brothers declared bankruptcy in September 2008, expected inflation fell by nearly eight hundred basis points in the space of two months and by October of 2008 it reached a low of negative four and half percent.

Immediately following the Federal Reserve purchase of one point three trillion dollars of new securities, expected inflation went back up into positive territory.

The Fed’s actions did not completely prevent deflation, and the CPI inflation rate fell to negative two percent in July of 2009. But the Fed’s actions did turn around inflationary expectations and it is likely that QE prevented a much larger deflation that would have had catastrophic effects on unemployment, had it been allowed to occur.

What about the composition of the balance sheet? By intervening in the MBS market, the Fed turned around a stock market crash and held the unemployment rate at 10%. Pretty bad, but not the 25% of 1933. 

Figure 2
Figure 2 contains the same information on asset purchases as Figure 1 but instead of plotting expected inflation on this chart, the solid line is the value of the stock market. I want to use this chart to make a point about the effects on markets of the type of assets that central banks buy.

Figure 2 shows that the turn around in the stock market that occurred at the beginning of 2009 coincides closely with the Fed’s intervention in the MBS market. Further, when asset buying was suspended temporarily, in the second quarter of 2010, the stock market resumed its downward spiral, picking up again only when the Federal Reserve announced at the Jackson Hole conference in the autumn of the same year, that large-scale asset purchases would resume.

Here’s a link that explains how QE works. And here is a link that presents the evidence for a causal connection from the stock market to the real economy. John is aware of my argument that financial instability is Pareto inefficient. He either disagrees or chooses to ignore it. I'm not sure which.

So, is there a case for raising interest rates and getting ‘back to normal’. John thinks not
For interest rates, the Fed has set itself a nearly impossible task. Fed officials need to know what the correct, or “natural,” real rate of interest is. Is there a “savings glut” or another recession on its way, driving the correct real interest rate down? Or are tight markets for skilled workers and large corporate profits a sign of high “natural” rates? Setting the right price of tomatoes is hard enough, let alone divining the right real interest rate for an entire economy.
John is wrong to think that we do not have a problem when rates are at zero. And he is wrong for two reasons.

First. Even if we accept that the Fed has no business trying to influence the real economy it does have a responsibility to control inflation. And the lever that controls inflation is the money interest rate. That lever did a pretty effective job for thirty-five years. Right now, it’s set at full speed ahead with no room to maneuver.

Second. The Fed does influence the real economy; not just in the short run: But in the long run. Financial markets do not allocate capital efficiently and the Fed has an important role as lender of last resort. We left markets to themselves in the nineteenth century and that didn’t turn out too well.  Lets not forget that lesson.

So what should we do? Raise rates. And raise them soon. But raising rates is not a get out of jail free card. A higher nominal rate will drive the economy back into recession by triggering a fall in the stock market.  

Financial wealth goes up. Financial wealth goes down. And with it - so goes the real economy. Movements in financial wealth do not reflect future booms or busts. They cause them. The lesson from Figure 2, is that the Fed can, and should, stabilize asset markets by actively trading the risk composition of its portfolio.  So - yes: raise rates. But; at the same time, absorb the risk that the private sector is unwilling to bear by trading equities.

Perhaps that sounds too radical? Intervening in the asset markets in any capacity was a radical proposal when the Fed was created in 1913. If you think the last crisis was bad: Wait and see what the next one will bring.

Not too simple: Just wrong

Simon Wren-Lewis has a nice post discussing Paul Romer’s critique of macro.

In Simon's words:

"It is hard to get academic macroeconomists trained since the 1980s to address [large scale Keynesian models] , because they have been taught that these models and techniques are fatally flawed because of the Lucas critique and identification problems."

"But DSGE models as a guide for policy are also fatally flawed because they are too simple. The unique property that DSGE models have is internal consistency."
"Take a DSGE model, and alter a few equations so that they fit the data much better, and you have what could be called a structural econometric model. It is internally inconsistent, but because it fits the data better it may be a better guide for policy."
Nope! Not too simple. Just wrong!

I disagree with Simon. NK models are not too simple. They are simply wrong. There are no ‘frictions’. There is no Calvo Fairy. There are simply persistent nominal beliefs.

Period.

The Next Great Depression

The financial markets are in turmoil. We are dangerously close to the next financial crisis.  The FTSE in the UK is down by 13% from its April peak. The Dow in the United States is off by 10%
and the Hong Kong Hang Seng index, the market that  is closest to the epicenter of the crisis, is down by a whopping 21%.

Why worry? Surely this is just a market correction. Traders in the financial markets are, after all, simply making the trades that are in all of our best interests. I don't think so!

Are the financial markets efficient? In one sense yes. In another sense no.

The financial markets are informationally efficient. It is difficult or impossible to make money trading in the markets unless you have inside information. There is no free lunch. That's what Gene Fama meant when he defined the term “efficient markets hypothesis”.

The financial markets are not Pareto efficient. They do not allocate capital across time in a socially optimal way. They are not Pareto efficient because almost all of the people who are affected by the trades we make today are not yet born. That is what explains Bob Shiller’s finding that long-run returns are predictable.

Real interest rates, and their close cousin, price earnings ratios, are incredibly persistent. They are persistent because the mistakes that our parents and our grandparents made in the past are carried into the present through the generational wealth distribution.

For the past hundred  years, we have managed the economy with a single tool; monetary policy.  Central banks raised the interest rate when inflation was high or when unemployment was low. They lowered the interest rate when inflation was low or when unemployment was high. For the past thirty-five years, there was no conflict between those objectives. Times have changed.

The stock market crash is screaming out for the Fed to lower interest rates. That option is closed as the interest rate has reached its lower bound. Some economists are calling for a huge fiscal stimulus. That is not the answer. Although I have stated publicly that I don't believe in fairies: Unlike Paul, I DO believe in the confidence fairy. Pessimistic beliefs about the value of private wealth are as destructive to the economy as a hurricane.

For monetary policy to work effectively as a lever to control inflation, the interest rate must be positive. We must raise the interest rate. And we must do it now.

If we raise interest rates now, the stock market will fall further. The U.S. market correction will turn into a full scale rout. Unemployment will soar. Unless.

Unless we use the deep pockets of the Treasury to step in on behalf of unborn generations and prevent that from happening.

For the economy to function at a high level of activity, the value of paper assets must be high. When we feel wealthy we spend. When we spend, firms create jobs. When firms create jobs, earnings and dividends increase and the high value of paper assets is validated.

What can we do? What should we do?

First: Give the Fed the power to buy a value weighted Exchange Traded Fund that contains every publicly traded stock.  Commit to support the ETF by buying stocks. Pay for the shares by  borrowing, or by trading Social Security Trust Fund.

Second: Raise the money interest rate to bring us back to normality and restore normal functioning of monetary policy.

When? Now! 

If we do not act, and act soon, we are headed for another Great Depression.





Animal Spirits and the Two Natural Rates








In my last post I pointed out that it is not enough for monetary policy to guide the economy back to the natural rate of interest. Central banks and national treasuries must use financial policy to guide us back to the natural rate of unemployment.

Imagine two economies in parallel universes. I will call them economy A and economy B. Both economies are populated by identical copies of the same people. They have the same endowments of land labor and capital. And each economy has access to identical technologies for producing goods. In economic jargon: they have the same fundamentals.

But although these economies have identical fundamentals, the people in economy A are naturally optimistic. They believe that shares in their stock market are worth PA. And PA is a large number. The people in economy B are pessimists. They believe that their stock market is worth PB. And PB is a small number. Importantly, PB < PA.

In economy A, as a consequence of the optimism of the population, households have a high demand for goods and services. To meet that demand, firms require a high labor force. The unemployment rate in economy A is 2%.

In economy B, as a consequence of the pessimism of the population, households have a low demand for goods and service. To meet that demand, firms require a low labor force. The unemployment rate in economy B is 10%.

In each economy, the households and firms believe, correctly, that the value of a share is equal to the discounted present value of a claim to the dividends that will be paid by the firm. And in each economy people discount the future at rate 1/R*, where R* is Wicksell’s ‘natural rate of interest’.

Dividends, in each economy, are a fraction of GDP. Because employment is higher in economy A than economy B, GDP is also higher. And so are dividends. The valuations placed on the stock market in both economies are rational. PA is equal to the present value of the dividends paid in economy A, discounted at rate 1/R*. PB is equal to the present value of the dividends paid in economy B, also discounted at rate 1/R*. Optimism or pessimism is a self-fulfilling prophecy.

How can this be? Surely the unemployment rate is determined by fundamentals. Not so. I explain in my published academic work, how there can be many unemployment rates, all of which are consistent with the conditions I described in this example. In a labor market where people must search for jobs, there are not enough price signals, to lead market participants to the optimal unemployment rate.

A Tale of Two Natural Rates

Narayana Kocherlakota makes the case for more public debt. Paul Krugman and Steve Williamson agree. (I have to keep rereading that sentence before I believe it). What is this argument all about and how does it relate to the soul of Keynesian economics?

Let's start with a key premise in the Kocherlakota speech. There is a theoretical concept called the ‘neutral real interest rate’ and one of the jobs of a central bank is to get us back to that rate of interest as quickly as possible. The ‘neutral rate’ is what Wicksell called the ‘natural rate of interest’ and I'm going to stick with Wicksell’s terminology here.

Wicksell’s natural rate of interest inspired Milton Friedman to coin the term ‘natural rate of unemployment’. In classical economics and in the brand of New Keynesian economics that inspires central bankers, there is a one-to-one correspondence between these concepts. If we could only ensure that we were at the natural rate of interest, it would simultaneously be true that we were at the natural rate of unemployment. That is, to use a technical term, poppycock.

Let's consider two possible definitions of ‘the’ gross real interest rate.

Definition 1: R1

R1 is the number of apples you could buy one year from today if you sell one apple today, invest the proceeds in one year treasury bonds, and convert the interest and principal, one year from now, back into apples.

Definition 2: R2

R2 is the number of apples you could buy, one year from today, if you sell one apple today, invest the proceeds in the stock market, and reinvest the quarterly dividends. One year from now, you sell your shares and convert the proceeds back into apples.

These two real interest rate concepts will always be different because the stock market return is far riskier. But economic theory says that they should be connected by the equation,

R2 = R1 + RP

where RP is a positive number that represents the extra return you require to compensate you for risk.

So far so good.

Now let's look at the connection between R2 and the stock market price. Imagine that we repeat the experiment of selling an apple many times and that we compute the average return. That's a bit of an artificial experiment because technically, I am thinking of the return earned in a billon parallel universes, all with the same initial conditions. That's a technicality that lets me abstract from uncertainty.

How would R2 be related to the price dividend ratio?

Here’s the answer.

R2 = 1 + D/P = 1 + (1/pd)

where pd is the price dividend ratio, P is the price of the stock and D is the dividend averaged over all of these parallel universes.

Now let's get back to original question. Let R2* represent the natural rate of interest earned in the stock market. Let U be the unemployment rate, let U* be the natural rate of unemployment and let pd* be the price dividend ratio when we are at the natural interest rate.

QUESTION

Here is my question to Narayana, Paul, Steve and anyone out there who wants to throw in their two cents. 

If: R2 = R* is it necessarily true that U = U*?

My answer is a resounding no. And that is what distinguishes my work from new Keynesian economics. The reason is that for every U there will be a P(U) and a D(U) where D(U) is the dividends you would earn on the stock market, and P(U) is the price you would pay for a share if the unemployment rate was U. In my world, there are multiple equilibrium unemployment rates. That is, after all, the essence of Keynesian economics. And that premise implies that there are multiple values of U such that

pd* = P(U)/D(U)

The answer to this question matters. And it matters a lot. During the Great Moderation, unemployment and inflation came down together. There was no apparent conflict between the goal of 2% inflation and full employment. That divine coincidencecannot be expected to continue. We need two tools for two targets. As I have argued here; we must use financial policy to target the unemployment rate and monetary policy to target inflation. 

So my question to wannabe Keynesians is: Are you a Neo-paleo Keynesian? Or are you a watered-down-Samuelsonian-MIT-Hicks-Hansen-1950s-IS-LM kind of guy?