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Large Bayesian Tensor VARs with Stochastic Volatility

Joshua C. C. Chan, Yaling Qi

arXiv 24 Sep 2024 · Econometrics

arXiv:2409.16132 · PDF · DOI · OpenAlex · Extracted main text

Abstract

We consider Bayesian tensor vector autoregressions (TVARs) in which the VAR coefficients are arranged as a three-dimensional array or tensor, and this coefficient tensor is parameterized using a low-rank CP decomposition. We develop a family of TVARs using a general stochastic volatility specification, which includes a wide variety of commonly-used multivariate stochastic volatility and COVID-19 outlier-augmented models. In a forecasting exercise involving 40 US quarterly variables, we show that these TVARs outperform the standard Bayesian VAR with the Minnesota prior. The results also suggest that the parsimonious common stochastic volatility model tends to forecast better than the more flexible Cholesky stochastic volatility model.

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appendix boundary found by appendix_titled_section at “Appendix A: Proofs of Propositions” · 60% of the source is main text. Read the extracted text to check this.

Most heavily cited references

The works this paper leans on most, across its whole bibliography — not restricted to papers in our corpus. Ranked by composite intensity, which combines how often a work is mentioned, how many sections mention it, and how much of that falls in the main text rather than the appendix.

ReferenceIntensityMentionsSectionsMain text
1Cogley and Sargent (2005) Drifts and volatilities: Monetary policies and outcomes in the post WWII US0.81142100%
2Wang, Zheng, Lian, and Li (2022) High-dimensional vector autoregressive time series modeling via tensor decomposition0.73732100%
3Carriero, Chan, Clark, and Marcellino (2022) Corrigendum to “Large Bayesian vector autoregressions with stochastic volatility and non-conjugate priors"0.64422100%
4Carriero, Clark, and Marcellino (2016) Common drifting volatility in large Bayesian VARs0.64422100%
5Carriero, Clark, and Marcellino (2019) Large Bayesian vector autoregressions with stochastic volatility and non-conjugate priors0.64422100%
6Carriero, Clark, Marcellino, and Mertens (2022) Addressing COVID-19 outliers in BVARs with stochastic volatility0.64422100%
7Carriero, Kapetanios, and Marcellino (2011) Forecasting large datasets with Bayesian reduced rank multivariate models0.64422100%
8D'Agostino, Gambetti, and Giannone (2013) Macroeconomic forecasting and structural change0.64422100%
9Doan, Litterman, and Sims (1984) Forecasting and conditional projection using realistic prior distributions0.64422100%
10Giannone, Lenza, and Primiceri (2015) Prior selection for vector autoregressions0.64422100%

Showing the top 10 of 53 scored citations.