http://www.morganstanley.com/ideas/global-trade-protectionism
https://www.elysee.fr/admin/upload/default/0001/11/8143fbb609fe8fa002cd7a36deccc1a219766cda.pdf
https://www.brookings.edu/articles/how-europe-can-avoid-a-transatlantic-trade-war/
https://www.africantraderemedies.com/opinions/the-squeeze-can-trade-law-preserve-the-juice-in-south-africas-citrus-fruits/