Last summer, sparked by the debate about a possible reduction in the US Federal Reserve’s bond purchase programme, long-term interest rates rose across the globe. Switzerland was no exception. The most recent interest rate reduction by the European Central Bank (ECB), by contrast, had little effect on Switzerland. One possible reason for this is that money market rates in the euro area were already at a very low level before the ECB’s decision and did not fall any further. Since October 2011, inflation rates in Switzerland have been predominantly negative. The introduction of the minimum exchange rate in September 2011 prevented a more severe deflationary trend, however. Lower price levels in Switzerland reflect, on the one hand, the impact of the past appreciation of the Swiss franc on import goods prices. On the other hand, price developments show clearly that domestic companies are lowering their costs so as to improve their price competitiveness. More than two years after the introduction of the  2  BIS central bankers’ speeches  minimum exchange rate, both effects have weakened considerably; this is also reflected in the current path of inflation. At the same time, inflation abroad is receding, especially in the euro area. The inflation differential between Switzerland and the euro area has thus decreased significantly. Inflation differentials play an important role in the valuation of the Swiss franc. This decreased inflation differential means that the real effective exchange rate will hardly change from now on and will remain considerably above its long-term average.
The credit cycle and monetary policy The knock on effects of defaults in the US sub prime market and the impact of big investors on asset prices are factors we need to assess not just in trying to understand the financial sector and the stresses it faces but in gauging the state of the economy more widely. The story of the sub prime market illustrates a wider point. In traditional banking markets in the past there has been an observable tendency for banks to overshoot both in offering credit at the top of the cycle and retrenching afterwards. That feeds through into asset prices and can have an impact on the wider economy. Despite the sophistication of the new capital markets, a very traditional cycle seems to have been alive and kicking in sub prime. 3  The definition of the official sector in the US Treasury survey also includes public bodies such as oil stabilisation funds. 4  See ‘International capital flows and US interest rates’, NBER working paper 12560, October 2006. 6  BIS Review 84/2007  A similar story could be told about the credit card and other unsecured lending over the last few years. The growth rate rose in the late 90s until defaults began to build up over the last 2 years and the banks and other lenders tightened up terms and conditions sharply (Chart 13). The path of commercial property prices in recent years suggests the same has been happening there (Chart 14).