
https://www.brookings.edu/wp-content/uploads/2018/04/workingpaper114-elephantchartrevisited.pdf

https://www.socialeurope.eu/wp-content/uploads/2018/12/SD_ProgressiveSociety-SustainableEquality.pdf

https://www.ips-journal.eu/topics/democracy/how-trump-is-losing-his-base-4713/?utm_campaign=en_829_20201013&utm_medium=email&utm_source=newsletter