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R2 bounds for predictive models: what univariate properties tell us about multivariate predictability

Mitchell, J. and Robertson, D. and Wright, Stephen (2019) R2 bounds for predictive models: what univariate properties tell us about multivariate predictability. Journal of Business and Economic Statistics 37 (4), pp. 681-695. ISSN 0735-0015.

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Abstract

A longstanding puzzle in macroeconomic forecasting has been that a wide varietyof multivariate models have struggled to out-predict univariate models consistently. We seek an explanation for this puzzle in terms of population properties. We derive bounds for the predictive R2 of the true, but unknown, multivariate model from univariate ARMA parameters alone. These bounds can be quite tight, implying little forecasting gain even if we knew the true multivariate model. We illustrate using CPI inflation data.

Metadata

Item Type: Article
Additional Information: This is an Accepted Manuscript of an article published by Taylor & Francis, available online at the link above.
Keyword(s) / Subject(s): Forecasting, Macroeconomic Models, Autoregressive Moving Average Representations; Predictive Regressions; Nonfundamental Representations; Time-Varying ARMA; Inflation Forecasts JEL codes: C22, C32, C53, E37
School: Birkbeck Faculties and Schools > Faculty of Business and Law > Birkbeck Business School
Depositing User: Stephen Wright
Date Deposited: 17 Jan 2018 15:01
Last Modified: 02 Aug 2023 17:38
URI: https://eprints.bbk.ac.uk/id/eprint/20883

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