The present research investigates the impact of trading volume on stock return volatility using data from the Greek … banking system. For our analysis, the empirical study uses daily measures of volatility constructed from intraday data for the … on stock return volatility mainly in all quantiles. The findings extrapolated are of relevance and interest to financial …

commercial banks as well as the impact of local GDP on the regional banking efficiency. The analysis is carried out in two steps …, (1) we use the Data Envelopment Analysis (DEA) for efficiency analysis, and (2) we use panel regression models for … banks must continue to operate branches and ATMs in Greece. Finally, we show that local GDP helps significantly in …