Sludge: How Friction Blocks People

When Richard Thaler first published Nudge, the world was just starting to believe in his brand of behavioral economics. In this 2021 episode, we ask: How has nudge theory held up in the face of a global financial meltdown, a pandemic, and other existential crises?

• SOURCES:
  • Richard Thaler, professor of economics at the University of Chicago.

• RESOURCES:
  • Nudge: The Final Edition, by Richard Thaler and Cass Sunstein (2021).
  • Sludge: What Stops Us from Getting Things Done and What to Do About It, by Cass Sunstein (2021).
  • "Sludge: Americans Spend 11.4 Billion Hours Filling Out Federal Paperwork," by Cass Sunstein (Big Think, 2021).
  • "Carbon Taxation in Sweden," by Government Offices of Sweden Ministry of Finance (2021).
  • "The Climate Club: How to Fix a Failing Global Effort," by William Nordhaus (Foreign Affairs, 2020).
  • "Organ Donation: Presumed Consent and Focusing on What Matters," by Rebecca Brown (The Journal of Medical Ethics Blog, 2017).

• EXTRAS:
  • "Sludge," series by Freakonomics Radio (2025).
  • “People Aren’t Dumb. The World Is Hard. (Ep. 340 Rebroadcast),” by Freakonomics Radio (2018).

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