McMillan, David G.; Thupayagale, Pako - In: Studies in Economics and Finance 26 (2009) 4, pp. 275-292
Purpose – In order to assess the informational efficiency of African equity markets (AEMs), the purpose of this paper is to examine long memory in both equity returns and volatility using auto‐regressive fractionally integrated moving average (ARFIMA)‐FIGARCH/hyperbolic GARCH (HYGARCH)...