We present a novel framework for analyzing cost minimizing production behavior in multi-output settings. Our specific focus is on dealing with joint inputs, i.e. inputs that are simultaneously used for the production of multiple outputs. Here, we distinguish between two possible approaches. The...

We introduce a novel and simple diagnostic tool to improve the performance of public services (e.g. in health, education, utilities and transportation). We propose a method to compute performance/productivity ratios, which can be applied as soon as data on production units' outcomes and...

We present a nonparametric approach for the equity and efficiency evaluation of (private and public) primary schools in Flanders. First, we use a nonparametric (Data Envelopment Analysis) model that is specially tailored to assess educational efficiency at the pupil level. The model accounts for...