Ricardo Reis is a professor of economics at the London School of Economics and is the co-author of a new book titled, *A Crash Course on Crises: Macroeconomic Concepts for Run-ups, Collapses, and Recoveries.* Ricardo is also a previous guest of Macro Musings and he rejoins the podcast to talk about his new book as well as his overall assessment of the inflation surge of the past few years. David and Ricardo specifically discuss what constitutes a bubble, the Eurozone crisis as a story of capital inflows and misallocation, shadow banking and systemic risk during the 2008 financial crisis, Ricardo’s view of the Phillips curve, and a lot more.   Transcript for this week’s episode.   Ricardo’s Twitter: @R2Rsquared Ricardo’s LSE profile Ricardo’s website   David Beckworth’s Twitter: @DavidBeckworth Follow us on Twitter: @Macro_Musings   Join the Macro Musings mailing list! Check out our new Macro Musings merch!   *A Crash Course on Crises: Macroeconomic Concepts for Run-Ups, Collapses, and Recoveries* by Ricardo Reis and Markus Brunnermeier   *Ricardo Reis on Central Bank Swap Lines, Fiscal Sustainability, and Outlooks for Inflation* by Macro Musings