The ECB decided yesterday against “going negative” by reducing its deposit rate from zero to -0.25 per cent. The Governing Council again debated the pros and cons of such a measure, which would represent the first time that any of the major four central banks would ever have reduced a key policy rate to below zero . Mr Draghi said again that the ECB was “technically ready” to take this action, and that the option remains “on the shelf”.
Many in the markets believe that this is just a bluff to prevent the euro from rising in the foreign exchange markets. There have been several unsupportive comments from leading members of the Governing Council (Asmussen, Mersch, Noyer and Nowotny) and Mr Draghi admitted that disagreements exist in the Council. Nevertheless, the President has deliberately left the option on the table, so it is important to understand the debate.
The technical aspects of negative rates have been very well covered in FT Alphaville recently, but I would like to focus on the broader policy implications. Why would a central bank want to take this action, and could it back-fire on them?