This paper uses survey expectations data to construct empirical proxies for time-varying business-level uncertainty. Access to the micro data from the German IFO Business Climate Survey permits construction of uncertainty measures based on both ex ante disagreement and ex post forecast errors....

Are firms' expectations biased? Does it matter? We use micro data on firms' production expectations from the German IFO Business Climate Survey and compare them to realization data from the same survey. We then construct series of quantitative firm-specific expectation errors. We find that...