America's “Main Street Millionaires” comprise about three million private business owners who have amassed one of the country's most concentrated pools of wealth. That's according to a study conducted by Owen Zidar and Eric Zwick. On this episode of the Odd Lots podcast, economists and authors of The Everywhere Millionaire: Who Is Really Rich in America and How They Got There, tell Tracy Alloway and Joe Weisenthal how "little guys" like beverage distributors, dentists and car wash owners have be