https://www.nber.org/papers/w24701.pdf
https://www.brookings.edu/articles/the-return-of-the-enemy/
https://www.foreignaffairs.com/articles/2020-01-21/imperial-presidency-alive-and-well?utm_campaign=Brookings%20Brief&utm_source=hs_email&utm_medium=email&utm_content=82321995
http://www.europeaninstitute.org/index.php/311-european-affairs/ea-october-2017/2242-as-chinese-investment-rises-in-europe-brussels-proposes-greater-scrutiny-of-foreign-purchases-of-eu-based-companies