“…Cross-country panel data sets have been investigated by Molyneux and Thornton (1992), Demirguc-Kunt and Huizinga (1999), Abreu and Mendes (2002), Goddard et al (2004), Pasiouras and Kosmidou (2007), Albertazzi andGambacorta (2009), Goddard et al (2010), Lee and Hsieh (2013), Shehzad et al (2013), Gambacorta et al (2014), Dietrich and Wanzenried (2014). Examples of single countries' analysis are studies of Andersen et al (2008), Athanasoglou et al (2008), Apergis (2009), García-Herrero et al (2009), Coffinet and Lin (2010, Wanzenried (2011), Sufian (2011), Kanas et al (2012), Rumler and Waschiczek (2012), Trujillo-Ponce (2013), Berlemann et al (2014), Perman et al (2015), Chronopoulos et al (2015). Certainly, the empirical results of the above mentioned studies vary as time periods, data sets, examined environments and countries differ.…”