THE CHANGING EFFICIENCY OF AFRICAN STOCK MARKETS

Keith Jefferis and Graham Smith

South African Journal of Economics, 2005, vol. 73, issue 1, 54-67

Abstract: This paper classifies formal African stock markets into four categories and discuses the principal characteristics of the seven markets covered in this study: South Africa, Egypt, Morocco, Nigeria, Zimbabwe, Mauritius and Kenya. Using a GARCH approach with time‐varying parameters, a test of evolving efficiency (TEE) is implemented for periods starting in the early 1990s and ending in June 2001. This test detects changes in weak form efficiency through time. The TEE finds that the Johannesburg stock market is weak form efficient throughout the period, and three stock markets become weak form efficient towards the end of the period: Egypt and Morocco from 1999 and Nigeria from early 2001. These contrast with the Kenya and Zimbabwe stock markets which show no tendency towards weak form efficiency and the Mauritius market which displays a slow tendency to eliminate inefficiency. The paper relates weak form efficiency to stock market turnover, capitalisation and institutional characteristics of markets.

Date: 2005
References: View complete reference list from CitEc
Citations: View citations in EconPapers (58)

Downloads: (external link)
https://doi.org/10.1111/j.1813-6982.2005.00004.x

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:bla:sajeco:v:73:y:2005:i:1:p:54-67

Ordering information: This journal article can be ordered from
http://www.blackwell ... bs.asp?ref=0038-2280

Access Statistics for this article

South African Journal of Economics is currently edited by Philip A. Black

More articles in South African Journal of Economics from Economic Society of South Africa Contact information at EDIRC.
Bibliographic data for series maintained by Wiley Content Delivery ().