PLoS ONE (Jan 2023)

Information flow dynamics between geopolitical risk and major asset returns.

  • Zaghum Umar,
  • Ahmed Bossman,
  • Sun-Yong Choi,
  • Xuan Vinh Vo

DOI
https://doi.org/10.1371/journal.pone.0284811
Journal volume & issue
Vol. 18, no. 4
p. e0284811

Abstract

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We quantify information flows between geopolitical risk (GPR) and global financial assets such as equity, bonds, and commodities, with a focus on the Russian-Ukrainian conflict. We combine transfer entropy and the I-CEEMDAN framework to measure information flows at multi-term scales. Our empirical results indicate that (i) in the short term, crude oil and Russian equity show opposite responses to GPR; (ii) in the medium and long term, GPR information increases the risk in the financial market; and (iii) the efficiency of the financial asset markets can be confirmed on a long-term scale. These findings have important implications for market participants, such as investors, portfolio managers, and policymakers.