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Crossroads of volatility spillover: Interactions between Islamic and conventional financial systems

Author

Listed:
  • Addi, Abdelhamid
  • Foglia, Matteo
  • Wang, Gang-Jin
  • Miglietta, Federica

Abstract

This study investigates the volatility spillover in dual financial systems, namely Islamic financial systems (banking and insurance) and conventional financial systems (banking and insurance). Employing an information risk spillover network, we are able to explore information flow between conventional and Islamic banking and insurance systems. We analyze their role in transmitting spillover risk, showing that capturing spillovers of both sectors provides a more comprehensive perspective on financial risk contagion. Our results show that spillovers form as intersectoral clusters affected by their own volatility rather than by the volatility of another financial system. Moreover, we find an asymmetric spillover effect between the conventional and Islamic systems. The conventional sector tends to dominate spillover effects. Our results are important for regulators and investors, helping improve corporate and global risks assessment.

Suggested Citation

  • Addi, Abdelhamid & Foglia, Matteo & Wang, Gang-Jin & Miglietta, Federica, 2025. "Crossroads of volatility spillover: Interactions between Islamic and conventional financial systems," Research in International Business and Finance, Elsevier, vol. 74(C).
    • Handle: RePEc:eee:riibaf:v:74:y:2025:i:c:s0275531924004938
    DOI: 10.1016/j.ribaf.2024.102700
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    More about this item

    Keywords

    Islamic banking and insurance; Conventional banking and insurance; Corporate risk; Volatility; Spillover effect;
    All these keywords.

    JEL classification:

    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • G22 - Financial Economics - - Financial Institutions and Services - - - Insurance; Insurance Companies; Actuarial Studies
    • G32 - Financial Economics - - Corporate Finance and Governance - - - Financing Policy; Financial Risk and Risk Management; Capital and Ownership Structure; Value of Firms; Goodwill
    • C31 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Cross-Sectional Models; Spatial Models; Treatment Effect Models; Quantile Regressions; Social Interaction Models

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