We study the informational efficiency of the Saudi stock market (SSM), while accounting for corporate governance change, based on single, multiple, and variance ratio-based WALD tests and runs test. The main findings indicate that when the whole period is considered, the random walk hypothesis...

In this paper we examine the ownership structure of 169 firms listed on the Saudi Arabian stock market from 2008 to 2014. The analysis uses the testing methodology described by Demsetz and Lehn (1985) to examine the effects of firm and market instability on Saudi ownership structure and...

We study the performance of range-based models over varying market conditions and compare their performance against a set of alterative risk measurement models, including the more widely used techniques in practice for measuring the Value-at-Risk (VaR) of seven financial market indices. In...

This paper performs unit root tests using panel data to investigate empirically stock price efficiency of the Athens stock market. Our Wald test statistics reject the random walk hypothesis for stock prices, which is a necessary condition for market efficiency

We study the performance of range-based models over varying market conditions and compare their performance against a set of alterative risk measurement models, including the more widely used techniques in practice for measuring the Value-at-Risk (VaR) of seven financial market indices. In...

In this paper we examine the ownership structure of 169 firms listed on the Saudi Arabian stock market from 2008 to 2014. The analysis uses the testing methodology described by Demsetz and Lehn (1985) to examine the effects of firm and market instability on Saudi ownership structure and...