https://www.cesifo-group.de/DocDL/ifoDD_18-01_29-31_Achten.pdf
https://www.eia.gov/energyexplained/us-energy-facts/imports-and-exports.php
https://www.nber.org/system/files/working_papers/w23583/w23583.pdf
https://www.brookings.edu/articles/is-the-global-economy-deglobalizing-and-if-so-why-and-what-is-next/