Dynamic Connectedness Between a Corporate Bond Market With <scp>WTI</scp>, Geopolitical and Financial Volatility: Spillover From Post‐<scp>COVID</scp>‐19 and Russian‐Ukrainian Clash

ABSTRACT This study investigates the dynamic connectedness between the USA's corporate bond market (CB) and various factors, including WTI, financial uncertainty, and geopolitical risks. We employ two advanced techniques to analyse these relationships: TVP‐Vector autoregressive (TVP‐VAR) and VAR connectedness. Specifically, we focus on two significant events, the Russian‐Ukrainian conflict (RUC) and the COVID‐19 pandemic (C19P), to provide insights into the behaviour of the CB during these critical periods against the oil prices and uncertainties. The empirical analysis reveals compelling findings, particularly concerning the extreme events and the magnitude of effects observed. We find a significant increase in interconnections over the time impacts during these two events, lending support to using an asymmetric and heterogeneous product over the time‐varying. Furthermore, we observe that the influence of the GPR and the VIX factors is more robust when uncertainty rises rather than decreases, indicating temporary events. Policymakers and macroprudential authorities can benefit from these findings, as they emphasise the need to adapt to a changing monetary policy and reduce reliance on energy volatility to make informed decisions in a rapidly evolving financial landscape.

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Publication Details

Journal
International Journal of Finance & Economics
Published
2025-09-18
DOI
https://doi.org/10.1002/ijfe.70037
Primary Topic
Market Dynamics and Volatility
Type
article
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article

Dynamic Connectedness Between a Corporate Bond Market With WTI, Geopolitical and Financial Volatility: Spillover From Post‐COVID‐19 and Russian‐Ukrainian Clash

Mohammad Sharif Karimi, Kamel Si Mohammed, Umer Shahzad
International Journal of Finance & Economics
Market Dynamics and Volatility
article

Dynamic Connectedness Between a Corporate Bond Market With WTI, Geopolitical and Financial Volatility: Spillover From Post‐COVID‐19 and Russian‐Ukrainian Clash

Mohammad Sharif Karimi, Kamel Si Mohammed, Umer Shahzad
article en

Abstract

ABSTRACT This study investigates the dynamic connectedness between the USA's corporate bond market (CB) and various factors, including WTI, financial uncertainty, and geopolitical risks. We employ two advanced techniques to analyse these relationships: TVP‐Vector autoregressive (TVP‐VAR) and VAR connectedness. Specifically, we focus on two significant events, the Russian‐Ukrainian conflict (RUC) and the COVID‐19 pandemic (C19P), to provide insights into the behaviour of the CB during these critical periods against the oil prices and uncertainties. The empirical analysis reveals compelling findings, particularly concerning the extreme events and the magnitude of effects observed. We find a significant increase in interconnections over the time impacts during these two events, lending support to using an asymmetric and heterogeneous product over the time‐varying. Furthermore, we observe that the influence of the GPR and the VIX factors is more robust when uncertainty rises rather than decreases, indicating temporary events. Policymakers and macroprudential authorities can benefit from these findings, as they emphasise the need to adapt to a changing monetary policy and reduce reliance on energy volatility to make informed decisions in a rapidly evolving financial landscape.

International Journal of Finance & Economics
Guangdong University Of Finances and Economics (CN), Guangdong University of Finance (CN), Université de ain Témouchent (DZ), Centre Européen de Recherche en Economie Financière et Gestion des Entreprises, Qatar University (QA), Tarleton State University (US), Széchenyi István University (HU), Université de Lorraine (FR)
Openalex Percentile: Top 66%
Market Dynamics and Volatility
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Dynamic Connectedness Between a Corporate Bond Market With <scp>WTI</scp>, Geopolitical and Financial Volatility: Spillover From Post‐<scp>COVID</scp>‐19 and Russian‐Ukrainian Clash — Mohammad Sharif Karimi, Kamel Si Mohammed, et al. · International Journal of Finance & Economics (2025) | TGRS Research Map | TGRS