After the financial crisis of 2007-2008, some bank performance dimensions have been the subject of debate, two of which are bank efficiency and bank risk-taking behavior. The literature on bank efficiency and productivity has grown considerably over the past three decades, and has gained...

The purpose of this paper is twofold. First, in the framework of the strategic groups' literature, it analyzes changes in productivity and efficiency of Spanish private and savings banks over an eight-year period (1998-2006). Second, by adapting the decomposition of the Malmquist productivity...