There are numerous ways to indicate the degree of banking competition across countries. Antitrust authorities rely on the structure-conduct-performance paradigm while academics prefer price mark-ups (Lerner index) or correlations of input costs with output prices (H-statistic). These measures are not always strongly correlated within or across countries. Frontier efficiency analysis is used to devise an alternative indicator of competition and rank European countries by their dispersion from a “competition frontier”. The frontier is determined by how well payment and other costs explain variations in loan-deposit rate spread and non-interest activity revenues. Overall, differences in competition appear to be small.

In card payment systems, no-surcharge rules prohibit merchants from charging consumers extra for card payments. However, such rules are prohibited in the Netherlands. Dutch retailers are allowed to surcharge consumers for debit card use. This setting permits an empirical analysis of the impact of surcharging card payments on merchant acceptance and consumer payment choice. Based on consumer and retailer survey data, our analysis shows that surcharging steers consumers away from using debit cards towards cash. Half of the observed difference in debit card payment shares across retailers can be explained by this surcharge effect. Removing debit card surcharges may induce cost savings of more than EUR 50 million in the long run.