Sometimes I wonder what the “experts” see in the numbers that I don’t see. An example of this is the raft of headlines today about the Fed trying to balance the “contradictory pressures of slowing growth and inflation.” For example, here are some snips from the NYT . . .
In testimony prepared for the House Financial Services Committee, the Fed chairman acknowledged that the central bank faces increasingly contradictory pressures of slowing growth and rising consumer prices.
But his bottom line appeared to be that, at least for now, policy makers are more worried about averting or at least softening a possible recession.
And this . . .
He predicted that the housing downturn will continue to slow the economy “in the coming quarters,” noting that financial markets are still in turmoil and that it has become more difficult to obtain credit. Consumer spending has “slowed significantly,” he said, partly because of rising gasoline prices, slowing job growth and the decline in household wealth as a result of falling home prices.
At the same time, Mr. Bernanke tried to make it clear that the Fed is watching inflation closely. He acknowledged that inflation may climb slightly more rapidly than the policy makers projected in January. Fed officials then estimated that consumer prices would climb to a range of 2.1 percent to 2.4 percent in 2008.
“Any tendency of inflation expectations to become unmoored or for the Federal Reserve’s inflation-fighting credibility to be eroded would greatly complicate the task of sustaining price stability and could reduce the flexibility of the F.O.M.C.,” Mr. Bernanke warned Wednesday, referring to the Federal Open Markets Committee, which sets interest rates.
Often when you read this sort of thing the writer will go on to draw the distinction between inflation and “core inflation” which is somehow meant to mean something.
To back up just a second, the Fed has been especially watchful of inflation for decades now. But what are we really talking about here?
Inflation is generally calculated using the Consumer Price Index or CPI. Core Inflation is usually the CPI minus the effect of energy and food. It’s also calculated using the “outlier” method which tends to get at the same thing by a different means.
So what goes in the CPI you might ask (and there are a couple of different CPIs it turns out)?
- Food and beverage
- Housing
- Apparel
- Transportation
- Medical Care
- Recreation
- Education and Communication
- Other goods
Hmmm. So when you take out food and energy, there’s not a lot left is there? Oh wait, there’s health care. Except those costs are completely unhinged from reality. They just go up and up at multiple rates of the CPI every year. In fact, they’ll consume 20% of the GDP in ten years, or so they say. So if we’re excluding outliers, why not that one?
Or how about education. Same thing. The price of a university education bears no relationship to any underlying economic dynamic other than inflation. Universities are virtually immune to the kinds of pressures companies face to manage costs, conserve, etc. So they just hike the price and everyone follows suit in a non-colluding sort of way they say.
How about housing. Well we all know what’s going on with that.
So what is this inflation thing that the Fed is so concerned about if it’s not anything that’s going up other than all the things that are going up for reasons that have nothing to do with monetary policy?
There are several points worth considering here that relate to decision-making.
The dynamic that most concerns the Fed is inflation. They respond by fooling around with monetary policy. But the one lever that has the biggest impact on the whole system is energy costs. And that’s not driven by US consumer or even industrial behavior. It’s driven by the actions of OPEC, the huge demands by China and India for energy (just to pick two), and the speculative behavior of financial actors. In other words, what drives the price of oil has nothing to do with anything that the Fed can influence.
Good statistical analysis requires that you normalize for outliers . . . forces that artificially impact the behavior of the model. But looking at the list that makes up the CPI, I would say they’re all outliers or none of them are. I don’t know about you, but I pay for food on a pretty regular basis. I pay for energy at least monthly.
Energy isn’t the only component of the calculation that is non-responsive to the actions of the Fed. It doesn’t matter what interest rates are, if you’re sick, you’re going to the doctor (assuming you have the means to pay for it). The same is arguably true for education.
So I guess that leaves “other.”
I’m sure there are “real” economists who would tell me I’m all wrong. I say bring it on. I can’t conceive of how anyone can make good “fact-based” decisions when the facts they’re using have no causal relationship with the decision they think they want to make. Or coming at this from the other direction, I can’t see how you can make a “fact-based” decision if you choose to ignore data about drivers you find inconvenient.
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Tags: inflation, core inflation, consumer price index, cpi, recession, Fed, decision making, decision quality