Thompson, Jeffrey, Jesse Bricker, and Michael Parisi. “Understanding Rising Concentration at the Extremes of the U.S. Income Distribution: How Important Are Income Fluctuations Among the Very Richest Households?”. Journal of Income Distribution® 30, no. 1 (March 30, 2021). Accessed April 25, 2024. https://jid.journals.yorku.ca/index.php/jid/article/view/40475.