We investigate the consistency of efficiency scores derived with two competing frontier methods in the financial economics literature: stochastic Frontier and Data Envelopment Analysis. We sample 34,192 observations for all German universal banks and analyze whether efficiency measures yield...

In this paper we review the main findings on competition and efficiency for the German banking sector. Our aim is to give a bird view of the evolution during the past 15 years. Previous studies on Germany point to a banking system dominated by monopolistic competition and moderate cost...