The Problem is not the Specter of Deflation, the Problem is the Inflation Rate Is Too Low

March 10, 2015

Okay, this is no longer amusing. Can we stop the nonsense about deflation? It doesn’t make a f***ing bit of difference whether prices are rising at a small positive rate or whether they are falling at a slow rate, except for the fact that the inflation rate is lower.

This really should not be hard to understand. The inflation rate is a composite of millions of price changes. When the inflation rate is very low, as it is now in the euro zone, a large portion of these price changes are already negative. Since the overall inflation rate is positive, it means that the increases are either somewhat more numerous or larger in absolute size than the decreases. 

However, suppose the ratio shifts, from say 55 percent increases against 45 percent decreases, to the reverse. How can this shake the economy? Many businesses were already looking at falling prices, now a few more are looking falling prices, so what?

The point should be simple, the problem in the euro zone is an inflation rate that is too low, which means the real interest is higher than would be desirable given the weakness of the economy. Having the inflation fall further makes matters worse, but crossing zero does not matter. Crossing zero does not matter. Someone please tell the NYT’s editors and reporters. It should not be hard to get this one straight. (Here‘s the I.M.F. on the topic for those who care more about authority than evidence and logic.)

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