Bayesian Analysis of High Dimensional Vector Error Correction Model

Parley R Yang and Alexander Y Shestopaloff

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Abstract: Vector Error Correction Model (VECM) is a classic method to analyse cointegration relationships amongst multivariate non-stationary time series. In this paper, we focus on high dimensional setting and seek for sample-size-efficient methodology to determine the level of cointegration. Our investigation centres at a Bayesian approach to analyse the cointegration matrix, henceforth determining the cointegration rank. We design two algorithms and implement them on simulated examples, yielding promising results particularly when dealing with high number of variables and relatively low number of observations. Furthermore, we extend this methodology to empirically investigate the constituents of the S&P 500 index, where low-volatility portfolios can be found during both in-sample training and out-of-sample testing periods.

Date: 2023-12, Revised 2024-03
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Persistent link: https://EconPapers.repec.org/RePEc:arx:papers:2312.17061

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