Asongu, Simplice; Odhiambo, Nicholas M. - 2018
, more efficient, and unchallenged. In contra st, several studies found that when bank size increases beyond certain … interest margins. This study examines the connection between bank size and efficiency to understand whether that relationship …-overlapping thresholds for bank size. We found two key results. First, bank size increases bank interest rate margins with an inverted U …