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Revisiting stock market index correlations

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  • Dalkir, Mehmet

Abstract

Comovement of stock market indices increases during volatile periods, and does not come down when the turmoil settles down. This paper explains formation of persistent comovements during high volatility periods with theories from Bayesian learning. My main conclusion is that the correlation that is formed during the high volatility period is persistent because it is learned during the turmoil. The belief that interdependence between markets are high during the volatile period turns into reality by correlated actions of traders in different markets avoiding correlation to fall to its previous level.

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  • Dalkir, Mehmet, 2009. "Revisiting stock market index correlations," Finance Research Letters, Elsevier, vol. 6(1), pages 23-33, March.
    • Handle: RePEc:eee:finlet:v:6:y:2009:i:1:p:23-33
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    3. Tiwari, Aviral Kumar & Mutascu, Mihai Ioan & Albulescu, Claudiu Tiberiu, 2016. "Continuous wavelet transform and rolling correlation of European stock markets," International Review of Economics & Finance, Elsevier, vol. 42(C), pages 237-256.
    4. Mensah, Jones Odei & Premaratne, Gamini, 2018. "Integration of ASEAN banking sector stocks," Journal of Asian Economics, Elsevier, vol. 59(C), pages 48-60.
    5. Narayan, S. & Sriananthakumar, S. & Islam, S.Z., 2014. "Stock market integration of emerging Asian economies: Patterns and causes," Economic Modelling, Elsevier, vol. 39(C), pages 19-31.
    6. Numan Ülkü, 2011. "Modeling Comovement among Emerging Stock Markets: The Case of Budapest and Istanbul," Czech Journal of Economics and Finance (Finance a uver), Charles University Prague, Faculty of Social Sciences, vol. 61(3), pages 277-304, July.
    7. Imhotep Paul Alagidede & Gideon Boako & Bo Sjo, 2021. "African equity markets’ exposure to oil and other commodities - implications for global portfolio diversification," Journal of Economics and Finance, Springer;Academy of Economics and Finance, vol. 45(2), pages 288-315, April.
    8. Guidi, Francesco & Ugur, Mehmet, 2014. "An analysis of South-Eastern European stock markets: Evidence on cointegration and portfolio diversification benefits," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 30(C), pages 119-136.
    9. Loh, Lixia, 2013. "Co-movement of Asia-Pacific with European and US stock market returns: A cross-time-frequency analysis," Research in International Business and Finance, Elsevier, vol. 29(C), pages 1-13.

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