Abstract
Financial performance as a phenomenon in the European banking sector is an issue of a wide debate. The paper is seeking to detect the variables that have an impact on performance. Ratios and stratification variables are used in panel data regressions and the time period of the study is from 2004 to 2013. The results show that performance (ROAA) is dependent on four categories of ratios (Asset quality, Capital ratios/risk and solvency ratios, Operations ratios, Liquidity ratios). Corporate governance system and the geographic location (political and macroeconomic factors) of the bank seem to effect significantly the factors that have an impact on performance.