We investigate the day-of-the-week effect in relation to bid ask spreads determinants by employing a comprehensive dataset of international equity markets from 2000 until 2015 incorporating different market phases, such as various booms and crashes. To this end, we apply a battery of tests...

Using high-frequency intraday data, we construct, test and model seven new realized volatility estimators for six international equity indices. We detect jumps in these estimators, construct the jump components of volatility and perform various tests on their properties. Then we use the class of...