Posts Tagged ‘Taylor rule’

ECB: One Size Fits None

March 31, 2014 18 comments

Eurostat just released its flash estimate for inflation in the Eurozone: 0.5% headline, and 0.8% core. We now await comments from ECB officials, ahead of next Thursday’s meeting, saying that everything is under control.

Just this morning, Wolfgang Münchau in the Financial Times rightly said that EU central bankers should talk less and act more. Münchau also argues that quantitative easing is the only option. A bold one, I would add in light of todays’ deflation inflation data. Just a few months ago, in September 2013, Bruegel estimated the ECB interest rate to be broadly in line with Eurozone average macroeconomic conditions (though, interestingly, they also highlighted that it was unfit to most countries taken individually).

In just a few months, things changed drastically. While unemployment remained more or less constant since last July, inflation kept decelerating until today’s very worrisome levels. I very quickly extended the Bruegel exercise to encompass the latest data (they stopped at July 2013). I computed the target rate as they do as


(if you don’t like the choice of parameters, go ask the Bruegel guys. I have no problem with these). The computation gives the following:


Using headline inflation, as the ECB often claims to be doing, would of course give even lower target rates. As official data on unemployment stop at January 2014, the two last points are computed with alternative hypotheses of unemployment: either at its January rate (12.6%) or at the average 2013 rate (12%). But these are just details…

So, in addition to being unfit for individual countries, the ECB stance is now unfit to the Eurozone as a whole. And of course, a negative target rate can only mean, as Münchau forcefully argues, that the ECB needs to get its act together and put together a credible and significant quantitative easing program.

Two more remarks:

  • A minor one (back of  the envelope) remark is that given a core inflation level of 0.8%, the current ECB rate of 0.25%, is compatible with an unemployment gap of 1.95%. Meaning that the current ECB rate would be appropriate if natural/structural unemployment was 10.65% (for the calculation above I took the value of 9.1% from the OECD), or if current unemployment was 11.5%.
  • The second, somewhat related but more important to my sense, is that it is hard to accept as “natural” an unemployment rate of 9-10%. If the target unemployment rate were at 6-7%, everything we read and discuss on the ECB excessively restrictive stance would be significantly more appropriate. And if the problem is too low potential growth, well then let’s find a way to increase it