R?diger Bachmann; Elstner, Steffen; Sims, Eric R. - In: American Economic Journal: Macroeconomics 5 (2013) 2, pp. 217-49
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....