Yet the most notable thing is that, despite these difficulties, we have succeeded in keeping the Libor around the middle of the target band. This is, after all, what counts for the implementation of monetary policy. So neither the current criticisms levelled at the Libor nor the actual movements in the Libor are an immediate reason to dispense with this rate as the operational target of the SNB. Conclusion Let me briefly conclude. Despite clear signs of a return to calm, the money market has not yet gone back to “business as usual”. The Libor/TOIS differentials continue to indicate a certain degree of tension. The various waves of turbulence also show how difficult it is to predict what will happen next. Central bank actions have helped to defuse the situation. Nevertheless, they can only treat the symptoms of the malaise, or fever. An effective cure and the restoration of confidence between market participants are primarily a matter for the banks themselves. The SNB’s tools – its medicine cabinet – have so far proved their worth during the turbulence. Yet the crisis provides a reason to review and where necessary adapt them. For central banks, it is important to consider, not just the immediate effect of an instrument, but also the longer-term repercussions. Thanks to their monopoly in issuing currency, central banks can engage in almost unlimited short-term intervention when markets and market participants are threatened with collapse. However, such extreme measures carry high risks for the longer term.
This means that movements in the Libor that are not in line with the SNB’s monetary policy objectives have to be countered with a change in repo rates. Thus, over the course of the turbulence, we consistently offset changes in Libor risk premia with changes in the repo rate, as shown in chart 4. For this reason, the Libor remained in the middle of the target band during the whole episode. The Swiss franc Libor was much more stable during the turmoil than the Libor for other currencies. This simply means that we were able to protect the Swiss economy from part of the crisis-induced increase in risk premia. Libor criticised Recently, some market observers have questioned the information value of the Libor. The Libor for all major currencies is fixed daily in London by the British Bankers Association  2  BIS Review 80/2008  (BBA) on the basis of a survey of top-rated international banks. Critics argued that some banks would report unduly low Libor rates, in an effort to talk up their creditworthiness. Others claimed that the rates were too high because the panel of reporting banks was not sufficiently representative. These criticisms almost exclusively concerned the dollar Libor. The BBA has found no evidence of a systematic distortion of the Libor, and has announced that it is leaving the fixing method for the Libor unchanged. However, it will strengthen governance of the Libor fixing process, especially the monitoring of individual banks’ reports.