We have been able to affect expectations for the following years through our communications. Other central banks that have not traditionally engaged in this type of communication have, as I mentioned earlier, experimented with different forms of rough ‘triggers’ of various kinds. The academic background to the concept is the insight that expectations of future policy rates are at least as important as their current level when it comes to affecting investment and consumption decisions. In normal cases, the central bank is assumed to be able to influence expectations satisfactorily through its systematic monetary policy. But when the policy rate reaches its lower bound, it is possible to communicate an intention to diverge from normal behaviour and keep the rate low for a longer period and thus substitute, to a certain extent, for an immediate policy rate cut. There has been, however, some discussion of how effective such communication actually is, particularly over longer horizons. 12 The Riksbank's method provides a more complete picture of how we see the situation and the development of the economy. But other ways of communicating about the future have their advantages. One variant of this is the state-contingent US approach: saying that the policy rate will not be raised until the outcome for inflation has reached 2 per cent. 13 In situations where the market does not share the Riksbank’s view of the development of inflation, the US way of communicating can provide more information than inflation and interest rate forecasts.
See Söderberg (2018) for a description of the development of means of payment. 2 [25]  rates, where a small number of central banks in practice conducted monetary policy for the entire world and thus ‘lent’ their credibility. 2 In Sweden, this system of fixed exchange rates did not function so well and this led to several major devaluations. The larger central banks also lost credibility for various reasons and the global economy underwent a period of high inflation in the 1970s and 1980s. Independent central bank with inflation target replaces gold The global developments over the past 30 years have entailed major changes to the monetary policy landscape, not least in Sweden. During the 1980s, work began in the leading countries of the world economy on rebuilding the confidence in monetary policy that had been lost in the 1970s. 3 At the beginning of the 1990s, Sweden experienced a severe financial crisis following the rapid winding up of several decades of hard regulation of the financial markets. During the crisis, there was strong pressure to devaluate and the defence of the fixed exchange rate finally became untenable. When the Riksbank abandoned the fixed exchange rate, monetary policy sought a new way to promote price stability, and Sweden joined the global trend of reinforcing the credibility of monetary policy. The answer became a more independent Riksbank with an explicit inflation target, and Sweden became one of the first countries in the world to try this new path.