In his press conference yesterday, Mario Draghi said the following:
Within the Stability and Growth Pact, one could do things that are growth-friendly and also would contribute to budget consolidation, and I gave an example of a balanced budget tax cut. Reducing taxes that are especially distortionary, where the short-term multipliers could be higher, and cutting expenditure in the most unproductive parts, so mostly, actually not mostly, entirely, current government expenditure.
There are at least three possible interpretations of this statement.
1. Draghi genuinely thinks that balanced budget multipliers are negative, which I find hard to believe. A balanced budget tax cut under current circumstances would be contractionary, not expansionary; at least, that is what we teach our students.
2. Draghi genuinely thinks that the Eurozone’s problems right now are on the supply side, and that tax cuts will help address these problems. I also find that hard to believe. The major problems facing the Eurozone right now are pretty clearly on the demand side.
3. Despite its nominal independence, the ECB is in fact the most politically constrained of the major central banks. If Draghi is going to push the ECB towards QE, and question the overall fiscal stance of the Eurozone, he has to come out with this sort of stuff from time to time, to appease the Germans.
I find the last of these three explanations entirely plausible, and it helps explain the ECB’s poor performance in the crisis to date. But why should a nominally independent central bank feel that its hand are tied in this way? Ultimately, perhaps, because the Eurozone is not a political union, and because democratic legitimacy resides at the level of the member states. This means that exit from the Eurozone is always an option, even if it is not openly acknowledged.
Another reason to think that monetary union without political union is a bad idea.