Testing for differences in survey-based density forecasts: A compositional data approach

Creators: Dovern, Jonas and Glas, Alexander and Kenny, Geoff
Title: Testing for differences in survey-based density forecasts: A compositional data approach
Item Type: Article or issue of a publication series
Journal or Series Title: Journal of Applied Econometrics
Page Range: pp. 1104-1122
Article: (Research Article)
Additional Information: Open Access
Date: 24 June 2024
Divisions: Wirtschaftswissenschaften
Abstract (ENG): We propose to treat survey-based density expectations as compositional data when testing either for heterogeneity in density forecasts across different groups of agents or for changes over time. Monte Carlo simulations show that the proposed test has more power relative to both a bootstrap approach based on the KLIC and an approach that involves multiple testing for differences of individual parts of the density. In addition, the test is computationally much faster than the KLIC-based one, which relies on simulations, and allows for comparisons across multiple groups. Using density expectations from the ECB Survey of Professional Forecasters and the US Survey of Consumer Expectations, we show the usefulness of the test in detecting possible changes in density expectations over time and across different types of forecasters.
Forthcoming: No
Language: English
Link eMedia: Download
Citation:

Dovern, Jonas and Glas, Alexander and Kenny, Geoff (2024) Testing for differences in survey-based density forecasts: A compositional data approach. Journal of Applied Econometrics, 39 (9), Art.: (Research Article). pp. 1104-1122. ISSN 0883-7252

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