https://www.socialeurope.eu/the-right-macroeconomic-policies-for-a-europe-saving-too-much
https://www.rtbf.be/info/monde/detail_la-taxe-tobin-doit-faire-partie-de-reformes-economiques-plus-larges-pour-charles-michel?id=9694965
https://www.bruegel.org/wp-content/uploads/2021/09/PC-2021-18-0909.pdf
https://open.overheid.nl/documenten/ronl-48b77cf7bdf0f91d4ed394ca2a37d2041bc50647/pdf