The purpose of this paper is to provide an in-depth analysis, using both financial ratio analysis and data envelopment analysis (DEA), of a consistent sample of Islamic and conventional banks located in the GCC region over the period 2004 to 2007. Results from the financial ratio analysis...

The purpose of this paper is to provide an in-depth analysis, using both financial ratio analysis and data envelopment analysis (DEA), of a consistent sample of Islamic and conventional banks located in the GCC region over the period 2004 to 2007. Results from the financial ratio analysis...

Several recent studies advocate the use of nonparametric estimators of daily price vari-ability that exploit intraday information. This paper compares four such estimators, realisedvolatility, realised range, realised power variation and realised bipower variation, by examiningtheir in-sample...