Adam Smith, the author of the 1776 book, Wealth of Nations, is called the father of economics. He's often cited as a champion of free markets, an interpretation widely advanced by Nobel prize winning economist Milton Friedman in the 20th century.

Harvard University lecturer Glory Liu says Smith's work is more nuanced. This week, we talk about her research on Smith as detailed in her new book, "Adam Smith's America"." She argues that while the 18th-century Scottish philosopher is widely known in the U.S. for his association with free markets, he was also a social philosopher concerned with worker rights and economic inequality. 

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