https://www.socialeurope.eu/the-case-for-a-european-prize-for-art
https://www.brookings.edu/essay/the-wall-the-real-costs-of-a-barrier-between-the-united-states-and-mexico/?utm_campaign=brookings-comm&utm_source=hs_email&utm_medium=email&utm_content=55521719
https://www.zora.uzh.ch/id/eprint/168933/1/From_welfare_to_warfare_Voth.pdf
https://www.global-counsel.co.uk/sites/default/files/analysis/insight/download/Hard%20and%20Soft%20Political%20Risk.pdf