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Central bank projections have gained considerable attention for monetary policy modeling. However, less is known about the nature of central bank projections. This letter explores the unbiasedness and rationality of more than 2; 000 growth and in ation projections published by 15 major central banks. The results indicate that central bank projections are in most cases rational and unbiased. Interestingly,
in ation projections are more biased than growth projections.
In this paper, we study the bias in interest rate projections for four central banks, namely for Czech Republic, New Zealand, Norway, and Sweden. We examine whether central bank projections are based on an asymmetric loss function and report evidence that central banks perceive an overprojection of their longer-term interest rate forecasts as twice as costly as an underprojection of the same size. We document that rationality is consistent with biased interest rate projections which contribute to explaining the central banks’ behavior.