In this study, using a combination of propensity score matching and difference-in-difference techniques, we investigate the impact of foreign bank ownership on the performance and market power of acquired banks operating in Central and Eastern Europe. This approach allows us to control for a selection bias as larger but less profitable banks were more likely to be acquired by foreign investors. We show that during 3years after takeover, banks become more profitable owing to cost minimization and better risk management. They also gained market share due to passing their lower cost of funds to borrowers in terms of lower lending rates. Previous studies failed to note the improvements in the performance of takeover banks because they did not account for the selection bias.

Earlier studies have documented that foreign banks charge lower lending rates and interest spreads than domestic banks. We hypothesize that this may stem from the superior efficiency of foreign entrants that they decide to pass onto borrowers (“performance hypothesis”), but could also reflect a different loan allocation with respect to borrower transparency, loan maturity and currency (“portfolio composition hypothesis”). We are able to differentiate between the above hypotheses thanks to a novel dataset containing detailed bank-specific information for the Polish banking industry. Our findings demonstrate that banks differ significantly in terms of portfolio composition and we attest to the “portfolio composition hypothesis” by showing that, having controlled for portfolio composition, there are no differences in lending rates between banks.