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Speculative bubbles and irrational exuberance in African stock markets

Author

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  • Almudhaf, Fahad

Abstract

We apply the sequential unit root tests of Phillips et al. (2015) for mildly explosive processes to identify and date-stamp bubbles in the emerging and frontier African stock markets. We find periods of explosive behavior in the price–dividend ratio in several markets which is indicative of irrational exuberance. We find strong evidence of multiple speculative bubbles in Botswana, Egypt, Ghana, Kenya, Nigeria and Tunisia. Results of our study are important to individual investors, emerging markets fund managers, and policy makers.

Suggested Citation

  • Almudhaf, Fahad, 2017. "Speculative bubbles and irrational exuberance in African stock markets," Journal of Behavioral and Experimental Finance, Elsevier, vol. 13(C), pages 28-32.
    • Handle: RePEc:eee:beexfi:v:13:y:2017:i:c:p:28-32
    DOI: 10.1016/j.jbef.2016.11.002
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    Cited by:

    1. Wang, Shaoping & Feng, Hao & Gao, Da, 2023. "Testing for short explosive bubbles: A case of Brent oil futures price," Finance Research Letters, Elsevier, vol. 52(C).
    2. Ayesha Liaqat & Mian Sajid Nazir & Iftikhar Ahmad & Hammad Hassan Mirza & Farooq Anwar, 2020. "Do stock price bubbles correlate between China and Pakistan? An inquiry of pre‐ and post‐Chinese investment in Pakistani capital market under China‐Pakistan Economic Corridor regime," International Journal of Finance & Economics, John Wiley & Sons, Ltd., vol. 25(3), pages 323-335, July.
    3. Adedoyin Isola Lawal & Adeniyi Olayanju & Afeez Adebare Salisu & Abiola John Asaleye & Olatunde Dahunsi & Oluwasogo Dada & Oluwasola Emmanel Omoju & Olabisi Rasheedat Popoola, 2019. "Examining Rational Bubbles in Oil Prices: Evidence From Frequency Domain Estimates," International Journal of Energy Economics and Policy, Econjournals, vol. 9(2), pages 166-173.
    4. Iliyasu, Jamilu & Rafindadi Sanusi, Aliyu & Suleiman, Dahiru, 2019. "Testing For Multiple Bubble Episodes In Nigerian Stock Exchange Market," Ilorin Journal of Economic Policy, Department of Economics, University of Ilorin, vol. 6(6), pages 13-26, June.
    5. Ayesha Liaqat & Mian Sajid Nazir & Iftikhar Ahmad, 2019. "Identification of multiple stock bubbles in an emerging market: application of GSADF approach," Economic Change and Restructuring, Springer, vol. 52(3), pages 301-326, August.
    6. Rafiq Ahmed & Syed Tehseen Jawaid & Samina Khalil, 2021. "Bubble Detection in Housing Market: Evidence From a Developing Country," SAGE Open, , vol. 11(2), pages 21582440211, April.

    More about this item

    Keywords

    African stock; Bubbles; Irrational behavior; Emerging markets; Generalized sup ADF;
    All these keywords.

    JEL classification:

    • G01 - Financial Economics - - General - - - Financial Crises
    • G02 - Financial Economics - - General - - - Behavioral Finance: Underlying Principles
    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading

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