https://www.imf.org/~/media/Files/Publications/PP/2019/PPEA2019007.ashx
https://opportunityinsights.org/wp-content/uploads/2020/05/tracker_paper.pdf
https://www.occrp.org/en/investigations/hungarys-fidesz-party-paid-eu-official-during-investigation
https://www.openmarketsinstitute.org/publications/bipartisan-lawsuit-against-google-marks-beginning-of-new-era-in-anti-monopoly-enforcement-and-a-new-beginning-for-the-digital-economy