Matt Yglesias is the co-founder of Vox, a senior correspondent who focuses on politics and economic policy, and a returning guest to the podcast. Matt once again joins Macro Musings to discuss his new book, *One Billion Americans: The Case for Thinking Bigger.* Specifically, David and Matt talk about how to reinvigorate the economy; through enacting better housing and transportation policies, dramatically increasing immigration, reviving America’s forgotten cities, and more. Finally, they also discuss the Fed’s new average inflation targeting regime, and what kind of direction the Fed will take over the new few years.   Transcript for the episode can be found here: https://www.mercatus.org/bridge/tags/macro-musings   Matt’s Twitter: @mattyglesias Matt’s Vox profile: https://www.vox.com/authors/matthew-yglesias Matt’s podcast: https://www.vox.com/the-weeds   Related Links:   *One Billion Americans: The Case For Thinking Bigger* by Matt Yglesias https://www.penguinrandomhouse.com/books/636499/one-billion-americans-by-matthew-yglesias/   David’s Twitter: @DavidBeckworth David’s blog: http://macromarketmusings.blogspot.com/