
https://cyberbrics.info/wp-content/uploads/2021/10/Ian-Brown-COMPETITION-POLICY-BRIEFINGS-IN-THE-BRICS.pdf

https://www.openmarketsinstitute.org/publications/hearings-show-big-tech-underestimating-regulatory-risk-to-investors

https://www.berkshirehathaway.com/letters/2019ltr.pdf