This paper investigates the cost efficiency of 1974 credit institutions across 15 European countries over the five-year period following the implementation of the Second Banking Directive in 1993. The Recursive Thick Frontier Approach is employed to estimate a Augmented Cobb-Douglas cost...

We extend the paper of Hinloopen and van Marrewijk (2005), who introduce the harmonic mass index to test whether two samples come from the same distribution, in the following directions. Firstly, we derive the Harmonic Weighted Mass (HWM) index for any number of samples. Secondly, this paper...