E37 Forecasting and Simulation
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Institute
In this paper, we contrast more than 6,000 private sector forecasts to projections of the German council of economic experts (Sachverständigenrat). Although the forecasts are submitted simultaneously, we find that the council's real economy forecasts, i.e. their growth, unemployment and fiscal forecasts have a higher forecast accuracy compared to the private sector forecasts. We also document that private sector forecasters deliberately place their real economy forecasts away from the council's projection. This strategic forecasting behavior explains why the private sector performs worse than the council. This result is robust over time but splitting the private sector in different groups reveals that the forecasts of banks compared to research institutes deviate more from the council's forecast.
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.