http://www.beaconforfreedom.org/liste.html?tid=415&art_id=475%20
https://docs.prosperity.com/2916/0568/0539/The_Legatum_Prosperity_Index_2020.pdf
https://irpimedia.irpi.eu/covid19-coronavirus-liberta-stampa/
https://www.brookings.edu/articles/disquiet-in-the-worlds-middle-class/