Another topic for next week’s ECB meeting and the following press conference will be the latest surge in bond yields – and, related to this, concerns about debt sustainability in Europe (and elsewhere). At first glance, this surge is actually coming in handy for the ECB. Bond markets are doing the ECB’s job, i.e., tightening financing conditions. According to macro models, a 50bp increase in bond yields has a slightly larger impact on inflation and GDP growth than a 50bp increase in the ECB’s policy rate.
Consequently, the main challenge for the central bank will be not to add too much fuel to the fire. Remember the unwarranted tightening of financing conditions. In fact, as long as inflation is not under control, it is not so much the absolute level of long-term interest rates but rather the spread between eurozone countries that is of most concern for the ECB. Some tightening of financing conditions can ease the ECB’s job; too much tightening, and unequal tightening, would bring new problems.
This is why questions may eventually arise as to whether the ECB would be willing to restart asset purchases, now under the label of the Transmission Protection Instrument. Let’s be clear, this is not a debate for now. But if debt sustainability concerns grow, possibly ahead of next year's French presidential elections, markets might want to test the ECB. We have seen it before. In this context, a debate that has so far been confined largely to the yellow press might become more policy-relevant: the possibility of an early exit for Christine Lagarde as ECB president and the question of who would be her successor. Some of the names of possible candidates currently circulating have, at least in the past, not been strong supporters of quantitative easing.
All in all, we expect the ECB to hike interest rates by 25bp next week. Another insurance rate hike. Or for those who don’t like this term: a dovish rate hike.