Economic changes bring prosperity, but not without cost. The globalization of how we produce and consume has left many American workers in dead end jobs without prospects for advancement. Some critics of this change have argued for the necessity of walls to protect American industries from global competition and labor exploitation. In his new book The Wall and The Bridge: Fear and Opportunity in Disruption’s Wake, Glenn Hubbard argues for bridges to economic opportunity. We discuss themes from his book in today’s episode.