The behavioural finance paradigm and the adaptive market hypothesis

Evidence from the JSE

Authors

DOI:

https://doi.org/10.20525/ijfbs.v11i2.1761

Keywords:

Adaptive market hypothesis, EMH, Behavioural finance, Bounded rationality, quantile regression, jse

Abstract

This study tests for the applicability of the Adaptive Market Hypothesis (AMH) and Bounded rationality theories on the Johannesburg Stock Exchange (JSE). This is in order to determine the influence of behavioural risk factors on the efficiency of the stock market. Behavioural theories show a gap in the theory of Efficient Market Hypothesis. Using quantile regression, our study established the applicability of the Adaptive Market Hypothesis on the JSE. Past market returns were shown to be significant in predicting future returns and thus did not follow a random walk. The lagged return increased at higher quantiles and differed with changes in market conditions (i.e. pre-financial crisis, financial crisis and post-financial crisis).  Thus, the predictability of returns varies with a change in market conditions. This paper is focused on only on the Johannesburg stock exchange in South Africa, more specifically the movement is the all share index. The findings should be able to be applied to emerging and developed economies. Business confidence is found to have a negative relationship with returns showing a lag in time for sentiment to be incorporated in prices. In contrast, consumer confidence is found to have a positive relationship with returns. In summary, investors are shown to be influenced by fundamental and behavioural factors.

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Published

2022-05-21

How to Cite

Yousuf, Z., & Makina, D. (2022). The behavioural finance paradigm and the adaptive market hypothesis : Evidence from the JSE. International Journal of Finance & Banking Studies (2147-4486), 11(2), 34–48. https://doi.org/10.20525/ijfbs.v11i2.1761