Censored Density Forecasts: Production and Evaluation

James Mitchell and Martin Weale

No 21-12R, Working Papers from Federal Reserve Bank of Cleveland

Abstract: This paper develops methods for the production and evaluation of censored density forecasts. The focus is on censored density forecasts that quantify forecast risks in a middle region of the density covering a specified probability, and ignore the magnitude but not the frequency of outlying observations. We propose a fixed-point algorithm that fits a potentially skewed and fat-tailed density to the inner observations, acknowledging that the outlying observations may be drawn from a different but unknown distribution. We also introduce a new test for calibration of censored density forecasts. An application using historical forecast errors from the Federal Reserve Board and the Monetary Policy Committee (MPC) at the Bank of England suggests that the use of censored density functions to represent the pattern of forecast errors results in much greater parameter stability than do uncensored densities. We illustrate the utility of censored density forecasts when quantifying forecast risks after shocks such as the global financial crisis and the COVID-19 pandemic and find that these outperform the official forecasts produced by the MPC.

Keywords: Forecast uncertainty; Outliers; Fan charts; Skewed densities; Best critical region; Density forecasting; Censoring; Forecast evaluation (search for similar items in EconPapers)
JEL-codes: C24 C46 C53 E58 (search for similar items in EconPapers)
Pages: 66
Date: 2021-05-27, Revised 2022-08-16
New Economics Papers: this item is included in nep-ecm, nep-for and nep-mac
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Journal Article: Censored density forecasts: Production and evaluation (2023)
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Persistent link: https://EconPapers.repec.org/RePEc:fip:fedcwq:92109

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DOI: 10.26509/frbc-wp-202112r

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