https://www.gmfus.org/sites/default/files/2021-09/Cristiani%20et%20al%20-%20report%20%281%29.pdf
http://library.fes.de/pdf-files/iez/13375.pdf
https://www.wto.org/english/res_e/booksp_e/anrep_e/anrep17_e.pdf
https://www.elibrary.imf.org/downloadpdf/book/9798400224119/CH004.xml