
https://www.openmarketsinstitute.org/publications/sling-de-economizing-antitrust-law-starts-with-market-definition

https://ukandeu.ac.uk/is-economic-output-an-accurate-measure-of-the-covid-19-impact/

https://wiiw.ac.at/employment-effects-of-offshoring-technological-change-and-migration-in-a-group-of-western-european-economies-impact-on-different-occupations-dlp-6500.pdf