“…We found that cost efficiency (Figure ) trended down 2000–2003, increased through 2008 and has fallen again in the years since; for profit efficiency (Figure ), we observe a negative trend since 2007, reaching minimum levels in 2009 and 2013. These results are evidence for the positive effect of European integration on cost efficiency, which has been reported in previous studies (Kosak et al ; Fang et al ; Gallizo et al ,). This positive effect is explained by the reforms that these countries implemented, which supported a more solid institutional framework that protects the legal rights of banks and increased competition after accession to the EU, including via the entry of foreign banks.…”