Unobserved structural shifts and asymmetries in the random walk model for stock returns in African frontier markets

The purpose of this study is to examine the weak-form market efficiency hypothesis (EMH) for 8 African Frontier markets between 2001 and 2017. To achieve this purpose, we employ unit root testing procedures which are robust to both nonlinearities and smooth structural breaks, making this study the f...

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Bibliographic Details
Main Authors: David de Villiers, Natalya Apopo, Andrew Phiri
Format: Article
Language:English
Published: Taylor & Francis Group 2020-01-01
Series:Cogent Economics & Finance
Subjects:
Online Access:http://dx.doi.org/10.1080/23322039.2020.1769348