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International portfolio diversification is better than you think

Author

Listed:
  • Nicolas Coeurdacier

    (ECON - Département d'économie (Sciences Po) - Sciences Po - Sciences Po - CNRS - Centre National de la Recherche Scientifique, CEPR - Center for Economic Policy Research - CEPR)

  • Stéphane Guibaud

    (LSE - London School of Economics and Political Science)

Abstract

Using aggregate data on bilateral cross-border equity holdings, we investigate whether investors correctly hedge their over-exposure to domestic risk (the well-known equity home bias) by investing in foreign stock markets that have low correlation with their home stock market. To deal with the endogeneity of stock return correlations, we instrument current correlations with past correlations. Controlling for many determinants of international portfolios, we find that, all else equal, investors do tilt their foreign holdings towards countries, which offer better diversification opportunities. The diversification motive that we uncover is stronger for source countries exhibiting a higher level of home bias.

Suggested Citation

  • Nicolas Coeurdacier & Stéphane Guibaud, 2011. "International portfolio diversification is better than you think," SciencePo Working papers Main hal-03602483, HAL.
    • Handle: RePEc:hal:spmain:hal-03602483
    DOI: 10.1016/j.jimonfin.2010.10.003
    Note: View the original document on HAL open archive server: https://hal-sciencespo.archives-ouvertes.fr/hal-03602483
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    Cited by:

    1. Broner, Fernando & Didier, Tatiana & Schmukler, Sergio L. & von Peter, Goetz, 2023. "Bilateral international investments: The big sur?," Journal of International Economics, Elsevier, vol. 145(C).
    2. Milsom, Luke & Pažitka, Vladimír & Roland, Isabelle & Wójcik, Dariusz, 2023. "The gravity of syndication ties in international equity underwriting," Bank of England working papers 1021, Bank of England.
    3. Nadia Nadira Mohd Norsiman & Noor Azuddin Yakob & Carl B. McGowan, Jr, 2019. "The Effect of Portfolio Diversification for the Bursa Malaysia," Accounting and Finance Research, Sciedu Press, vol. 8(4), pages 1-76, November.
    4. Sarwar, Ghulam, 2023. "Market risks that change US-European equity correlations," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 83(C).
    5. Pierre Bui Quang & Jonas Heipertz & Natacha Valla, 2017. "International equity portfolio diversification: a sectoral and security-by-security analysis," Working Papers hal-04141671, HAL.

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