IDEAS home Printed from https://ideas.repec.org/a/cuc/eforum/v15y2025i1p38-57.html

Exchange rate volatility, stock prices and returns in BRICS: The moderating effect of inflation with wavelength analysis

Author

Listed:
  • David Umoru
  • Beauty Igbinovia
  • Benjamin Odegha

Abstract

This study aimed to evaluate the conditional effect of exchange rate volatility on stock prices and returns in the emerging markets of BRICS nations. Using daily data from 1 January 2000 to 30 December 2023, wavelet and quantile analysis were conducted. The Markov-regime model was estimated for robustness check. The wavelet scale W1 exhibited a variance of 574.7375 and a relative percentage of 20.95% in explaining stock price variability, whereas wavelet scale W3 had a variance of 288.5577 and a relative proportion of 15.54%, and wavelet scale W2 had a variance of 159.5644 and a relative proportion of 8.59%. The implication was that BRICS stock markets react significantly to cumulative economic trends over the short term and sudden movements in exchange rates. The variance contribution for returns was found to increase with short-term scales, ranging from 0.0156 for W1 to 0.0643 for W3. This increase indicated that stock returns in BRICS countries were moderately reactive to abrupt exchange rate fluctuations, immediate shifts in inflation, and money supply variations. The short-term scales capture the market’s rapid responses to economic news and updates. Such sensitivity to transient economic changes aligns with the results of earlier studies. Stock prices rose in response to an increase in the inflation rate across the quantiles, while stock returns were inversely and considerably influenced by the inflation rate. Also, highly significant negative responses of stock returns to variations in the exchange rate were found under both floating and fixed exchange rate regimes. Overall, when internal inflation exerts a strong moderating influence in an economic environment marked by severe volatility, market performance becomes highly responsive to fluctuations in currency values. The findings of this research will aid in the planning and development of policies by all governments, as well as the financial industry

Suggested Citation

  • David Umoru & Beauty Igbinovia & Benjamin Odegha, 2025. "Exchange rate volatility, stock prices and returns in BRICS: The moderating effect of inflation with wavelength analysis," E-Forum Working Papers, Economic Forum, vol. 15(1), pages 38-57, February.
    • Handle: RePEc:cuc:eforum:v:15:y:2025:i:1:p:38-57
    DOI: https://doi.org/10.62763/ef/1.2025.38
    as

    Download full text from publisher

    File URL: https://e-forum.com.ua/web/uploads/pdf/EF_15_1_2025_38-57.pdf
    Download Restriction: no
    File URL: https://libkey.io/https://doi.org/10.62763/ef/1.2025.38?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    More about this item

    Keywords

    ;
    ;
    ;
    ;
    ;

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:cuc:eforum:v:15:y:2025:i:1:p:38-57. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Economic Forum (email available below). General contact details of provider: https://e-forum.com.ua/ .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.