This paper investigates the size-efficiency relation of European cooperative banks during the 2006-2015 period. We employ the Stochastic Frontier Analysis in order to obtain inefficiency estimates and its determinants on the set of 183 cooperative banks from 12 European countries. This work...

This paper argues that the conventional definition of the elasticity of complementarity is not well suited to deal with the case of increasing returns. It proposes a slightly different formula, that uses a distance function formulation instead of a production function. The proposed definition...