http://unctad.org/en/PublicationsLibrary/wir2017_en.pdf
https://www.brookings.edu/research/we-should-bail-out-airlines-during-the-coronavirus-pandemic-but-on-taxpayers-terms/?utm_campaign=Brookings%20Brief&utm_medium=email&utm_content=85010600&utm_source=hs_email
https://blogs.imf.org/2018/06/06/chart-of-the-week-the-rise-of-corporate-giants/?utm_medium=email&utm_source=govdelivery
https://www.fsb.org/wp-content/uploads/P111022-3.pdf