1. Buffett, Warren. “Letter to Shareholders, 2011.” Berkshire Hathaway, February 25, 2012.
https://www.berkshirehathaway.com/letters/2011ltr.pdf
2. See “Gold Reserves by Country” from the World Gold Council. https://www.gold.org/goldhub/data/gold-reserves-by-country
3. This law was effective December 31, 1974 and repealed parts of the Gold Reserve Act of 1934.
4. This is an update of the analysis in Harvey et al. (2019).