1. European Commission, DG Joint Research Centre, Directorate I – Competences, Unit I.1 - Modelling, Indicators and Impact Evaluation, Competence Centre on Composite Indicators and Scoreboards (CC COIN) , TP 361, Via E. Fermi 2749, I-21027 , Ispra (Va), Italy
2. Department of Fundamentals of Economic Analysis, University of Vigo, Facultad de Ciencias Empresariais e Turismo , Campus Universitario As Lagoas s/n, 32004 , Ourense Galicia (Spain)