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Market segmentation and international diversification across country and industry portfolios

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  • Umutlu, Mehmet
  • Yargı, Seher Gören
  • Zaremba, Adam

Abstract

We conjecture that partially segmented stock indexes that are characterized by low correlation with the world market are mainly priced by local factors and should produce abnormal returns relative to a global asset-pricing model. This implies a negative relation between correlation and future index returns in the presence of segmented indexes. Empirical evidence confirms such a relationship for the sample of industry indexes, suggesting a heterogeneous segmentation. However, we do not observe a similar pattern for country indexes. In addition, the international diversification potential of industries does not vanish during volatile periods. The hypothesis that the negative relationship should be stronger for the more segmented subsamples that are characterized by small market size and emerging country origin is verified for the industry sample. Thus, cross-industry diversification is superior to mere cross-country diversification.

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  • Umutlu, Mehmet & Yargı, Seher Gören & Zaremba, Adam, 2023. "Market segmentation and international diversification across country and industry portfolios," Research in International Business and Finance, Elsevier, vol. 65(C).
    • Handle: RePEc:eee:riibaf:v:65:y:2023:i:c:s0275531923000806
    DOI: 10.1016/j.ribaf.2023.101954
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    More about this item

    Keywords

    International portfolio diversification; Industry diversification; Country diversification; Partial segmentation and integration; Index return correlations;
    All these keywords.

    JEL classification:

    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates

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