In 2014, the economists Owen Zidar and Eric Zwick were asked by the US Treasury to conduct a study on the tax burden of private business owners. One of their central findings is that there are about three million private business owners who have an average wealth of around $25 million. The research they conducted led to their new book, The Everywhere Millionaire: Who Is Really Rich in America and How They Got There.

On this week's Weekend Listen, Odd Lots co-hosts Joe Weisenthal and Tracy Alloway talk to Zidar and Zwick about how they measured the actual number of rich people in America, why income inequality started to rise in tandem with the growing number of pass-through businesses, and how it's possible that the collective revenue of the nation's dentists far exceeds that of the NFL.

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