However, consumption and investment decisions, and thus medium-term price developments, are to a large extent influenced by longer-term interest rates, which depend on private expectations regarding future central bank decisions and future inflation. It is important that these developments in longer-term rates support the objective of maintaining price stability over the medium term.
This in turn requires that the central bank is regarded as credible and predictable. A central bank which does not succeed in communicating the principles underlying its monetary policy and is perceived as acting in a non-systematic, discretionary manner will over time endanger its reputation.