http://blogs.lse.ac.uk/brexit/2017/05/24/from-brexit-to-european-renewal-the-fracture-of-the-social-contract-underlays-the-current-turmoil/
https://es.insightcrime.org/noticias/gamechangers-2021-nuevo-ano-plagado-criminalidad-escaso-democracia/
http://www.oecd.org/std/Hows-Life-2017-60-second-guide.pdf