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It is a well-known fact that the day-of-the-week effect in stock markets is one of the most prominent puzzling seasonal anomalies in finance and has been increasingly attracting attention from researchers and practitioners, as well as academics. This paper scrutinizes the day-of-theweek effect in the emerging equity market of Saudi Arabia, TADAWUL. By using a non-linear GARCH model and covering the data from January 2001 to December 2009, the findings of the study reveal that the returns on the five trading days follow different process. This confirms that mean daily returns are significantly different from each other and validates the day-of-theweek effect in TADAWUL.

Purpose -This study examines the relationship between the multi-layer corporate governance model of Islamic banking and bank performance. Methodology -The random-effects GLS method for the regression analysis and two-step generalized methods of moments for the robustness check of the findings were utilized. Findings -The results show that boards are strong and the CEO's are powerful in Islamic banks. While the return variables of Islamic banks are positively correlated with the financial disclosure index and board structure variables, they are negatively correlated with the risk closure index and CEO related variables. The corporate governance and financial disclosure indices lessen the profitability of Islamic banks as they are negatively significant with performance variables. Conclusion -The governance mechanism provides a weak explanation for the changes in shareholders' value of Islamic banks, which shows that conventional banks have better, more effective, governance system than Islamic banks in this regard.

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