“…As Greco et al state, "each approach in every single step has both its benefits and its drawbacks", and it is essential to understand the methodological framework to better design the weighting, aggregation, and robustness steps. There are several methods to build these composite indices [42,[45][46][47], even to measure the SDG [48][49][50], but all of them have strengths and weaknesses. For this reason, we focus our analysis on the SDG Index methodology, created by independent scientists and endorsed by the United Nations for its consistency, 'dynamic' distance-to-target assessment, and the possibility to be applied at national, regional, and local levels [51].…”