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Determinants of South African Asset Market Co-Movement: Evidence from Investor Sentiment and Changing Market Conditions

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  • Fabian Moodley

    (School of Economic Science, North-West University, Gauteng 1174, South Africa)

  • Sune Ferreira-Schenk

    (School of Economic Science, North-West University, Gauteng 1174, South Africa)

  • Kago Matlhaku

    (School of Economic Science, North-West University, Gauteng 1174, South Africa)

Abstract

The co-movement of multi-asset markets in emerging markets has become an important determinant for investors seeking diversified portfolios and enhanced portfolio returns. Despite this, studies have failed to examine the determinants of the co-movement of multi-asset markets such as investor sentiment and changing market conditions. Accordingly, this study investigates the effect of investor sentiment on the co-movement of South African multi-asset markets by introducing alternating market conditions. The Markov regime-switching autoregressive (MS-AR) model and Markov regime-switching vector autoregressive (MS-VAR) model impulse response function are used from 2007 March to January 2024. The findings indicate that investor sentiment has a time-varying and regime-specific effect on the co-movement of South African multi-asset markets. In a bull market condition, investor sentiment positively affects the equity–bond and equity–gold co-movement. In the bear market condition, investor sentiment has a negative and significant effect on the equity–bond, equity–property, bond–gold, and bond–property co-movement. Similarly, in a bull regime, the co-movement of South African multi-asset markets positively responds to sentiment shocks, although this is only observed in the short term. However, in the bear market regime, the co-movement of South African multi-asset markets responds positively and negatively to sentiment shocks, despite this being observed in the long run. These observations provide interesting insights to policymakers, investors, and fund managers for portfolio diversification and risk management strategies. That being, the current policies are not robust enough to reduce asset market integration and reduce sentiment-induced markets. Consequently, policymakers must re-examine and amend current policies according to the findings of the study. In addition, portfolio rebalancing in line with the findings of this study is essential for portfolio diversification.

Suggested Citation

  • Fabian Moodley & Sune Ferreira-Schenk & Kago Matlhaku, 2025. "Determinants of South African Asset Market Co-Movement: Evidence from Investor Sentiment and Changing Market Conditions," Risks, MDPI, vol. 13(1), pages 1-34, January.
  • Handle: RePEc:gam:jrisks:v:13:y:2025:i:1:p:14-:d:1568619
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    References listed on IDEAS

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