http://trade.ec.europa.eu/doclib/docs/2018/october/tradoc_157469.pdf
http://www.morganstanley.com/ideas/global-trade-protectionism
https://www.wto.org/english/res_e/reser_e/ersd201704_e.pdf
https://ecipe.org/wp-content/uploads/2020/08/ECI_20_PolicyBrief_06_2020_LY06.pdf