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Nowcasting Canadian GDP with Density Combinations

Tony Chernis and Walter Engert

No 2022-12, Discussion Papers from Bank of Canada

Abstract: Assessing the state of the economy in real time is critical for policy-making, and understanding the risks to those assessments is equally important. Policy-makers are typically provided with point forecasts that contain insufficient information about risks. In contrast, predictive densities estimate the entire range of possible outcomes. This provides a method for quantifying not only the current state of the economy but also the degree of uncertainty, the tail risks and the overall balance of risks around that state. Accordingly, this paper extends the framework of Chernis and Sekkel (2018) to produce density nowcasts for Canadian real GDP growth. We compare several methods of combining predictive densities from 98 models representing four popular classes of nowcasting models. The performance of these combinations is then assessed in both real-time and pseudo real-time out-of-sample exercises, with the limited sample real-time simulations reinforcing the importance of data revisions for nowcasting. We demonstrate that the combined densities are reliable and accurate tools for assessing the state of the economy and risks to the outlook. We highlight in particular risks at the start of the COVID-19 pandemic.

Keywords: Econometric; and; statistical; methods (search for similar items in EconPapers)
JEL-codes: C C53 E E3 E7 (search for similar items in EconPapers)
Pages: 58 pages
Date: 2022-05
New Economics Papers: this item is included in nep-for and nep-mac
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