https://www.bruegel.org/sites/default/files/2022-10/PC%2018%202022_1.pdf
https://www.ifw-kiel.de/fileadmin/Dateiverwaltung/IfW-Publications/-ifw/Kiel_Working_Paper/2022/KWP_2218_Which_countries_help_Ukraine_and_how_/KWP_2218_Trebesch_et_al_Ukraine_Support_Tracker.pdf
http://www.morganstanley.com/ideas/global-trade-protectionism
https://theconversation.com/nato-leaders-pledge-increased-defence-spending-is-this-really-the-price-for-peace-and-prosperity-255989