“…Extensive integration and EU legislative harmonization were expected to bring in more competitions among banks and consequently force them to improve performance. However, the effects were less clear (Grifell and Lovell 1996;Lozano-Vivas, 1998;Casu and Philip, 2003;Caus and Girardone, 2004 Recently, some researchers began to compare the efficiency among different nations or to test the consistency among different frontier methods (Allen and Rai, 1996;Pastor et al, 1997;Bos and Kolari, 2005;Berg et al, 1993;Ferrier and Lovell, 1990;Ferrier et al, 1993;Bauer et al, 1998;Weill, 2004). Berg et al (1993) earlier study of three Nordic countries, Finland, Norway and Sweden found that Sweden had the most efficient banking system while Finland had the worst.…”