Purpose – The purpose of this paper is to examine the change in speed of dissemination of order flow information on stock volatility of return in 79 traded companies at the Cairo and Alexandria Stock Exchange (CASE). Design/methodology/approach – The paper examines the interaction of...

Even though most previous research studies suggest that the relationship between common financial ratios and stock returns is linear, recent studies by Mramor and Mramor‐Kosta (1997), and Mramor and Pahor (1998) show that such a linear relationship might not generally exist. In this study, we...

Purpose – The purpose of this paper is to investigate the efficiency of the emerging stock markets in the Middle Eastern countries. Design/methodology/approach – The paper investigates the validity of the random walk hypothesis (RWH) and tests for calendar effects in five major Middle...