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Interconnectedness in the Global Financial Market

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  • Matthias Raddant
  • Dror Y. Kenett

Abstract

The global financial system is highly complex, with cross-border interconnections and interdependencies. In this highly interconnected environment, local financial shocks and events can be easily amplified and turned into global events. This paper analyzes the dependencies among nearly 4,000 stocks from 15 countries. The returns are normalized by the estimated volatility using a GARCH model and a robust regression process estimates pairwise statistical relationships between stocks from different markets. The estimation results are used as a measure of statistical interconnectedness, and to derive network representations, both by country and by sector. The results show that countries like the United States and Germany are in the core of the global stock market. The energy, materials, and financial sectors play an important role in connecting markets, and this role has increased over time for the energy and materials sectors. Our results confirm the role of global sectoral factors in stock market dependence. Moreover, our results show that the dependencies are rather volatile and that heterogeneity among stocks is a non-negligible aspect of this volatility.

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  • Matthias Raddant & Dror Y. Kenett, 2017. "Interconnectedness in the Global Financial Market," Papers 1704.01028, arXiv.org, revised Jun 2020.
  • Handle: RePEc:arx:papers:1704.01028
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    16. Pineda, Julián & Cortés, Lina M. & Perote, Javier, 2022. "Financial contagion drivers during recent global crises," Economic Modelling, Elsevier, vol. 117(C).
    17. Wahyu Jatmiko & M. Shahid Ebrahim & Abdullah Iqbal & Rafal M. Wojakowski, 2023. "Can trade credit rejuvenate Islamic banking?," Review of Quantitative Finance and Accounting, Springer, vol. 60(1), pages 111-146, January.
    18. Ekaterina E. Emm & Gerald D. Gay & Han Ma & Honglin Ren, 2022. "Effects of the Covid‐19 pandemic on derivatives markets: Evidence from global futures and options exchanges," Journal of Futures Markets, John Wiley & Sons, Ltd., vol. 42(5), pages 823-851, May.
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    20. Su, Zhi & Liu, Peng & Fang, Tong, 2022. "Uncertainty matters in US financial information spillovers: Evidence from a directed acyclic graph approach," The Quarterly Review of Economics and Finance, Elsevier, vol. 84(C), pages 229-242.
    21. Financial Stability Committee, Task Force on cross-border Spillover Effects of macroprudential measures & Kok, Christoffer & Reinhardt, Dennis, 2020. "Cross-border spillover effects of macroprudential policies: a conceptual framework," Occasional Paper Series 242, European Central Bank.

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    JEL classification:

    • G15 - Financial Economics - - General Financial Markets - - - International Financial Markets
    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • C58 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Financial Econometrics
    • F36 - International Economics - - International Finance - - - Financial Aspects of Economic Integration

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