Tyler Cowen on the GOAT of Economics

Episode Summary

Executive Summary: Russ Roberts interviews Tyler Cowen about his book GoAT, a fan-driven history of economics that asks who the greatest economist of all time is and why it matters. Cowen explains his criteria—breadth, depth, historical impact, and not being too wrong—then compares Smith, Mill, Malthus, Keynes, Hayek, and Friedman, while defending the book’s use of GPT-4 as a future-facing reading companion.

Main Topics: The purpose and method of GoAT (Priority: 5/5): Cowen says the book is a personal, fan-style history of economic thought built during the pandemic, aimed at appreciating economists as idea-shapers rather than technicians. Criteria for greatness in economics (Priority: 5/5): He defines GOAT status through breadth, depth, historical significance, balanced theory and empirics, relevance across micro and macro, and being broadly correct. Assessment of the finalists (Priority: 5/5): Smith, Mill, Malthus, Keynes, Hayek, and Friedman are evaluated for originality, correctness, influence, readability, and lasting relevance. What economics has become (Priority: 4/5): Cowen argues modern academic economics has shifted from carrying broad ideas to hypothesis testing and empirical work, with blogs/podcasts now carrying more of the public-ideas burden. Readability and enduring value of classic works (Priority: 4/5): The conversation highlights which works remain worth rereading today, especially Hayek’s articles, Smith’s Wealth of Nations, Mill’s Subjection of Women, and Friedman’s essays. AI and the future of books (Priority: 4/5): Cowen explains the embedded GPT-4 layer as a prototype for a future in which books become interactive, searchable, and conversational companions.

Key Arguments: Economics greatness should be judged by breadth, depth, historical impact, and correctness, not just citation counts or technical brilliance. Marx is excluded because he is too wrong on major issues and does not meet Cowen’s standards for breadth/correctness. Samuelson is undeniably major but fails Cowen’s test because he was wrong on Soviet growth, price controls, and some macro issues, and because personal conduct matters too. Friedman is profound but less original than some rivals; his strength was recognizing and clearly stating truths others obscured, especially about money and incentives. Keynes is brilliant, but Cowen sees him as too weak in microeconomics, too willing to overgeneralize, and too politically naive. Hayek’s essays on knowledge and coordination are among the greatest economics articles ever written, though his later system-building is less convincing. Mill deserves goat-level attention because his economics is woven into broader questions of liberty, human flourishing, and social reasoning. Smith remains the strongest overall candidate because of his foundational breadth and enduring insights into division of labor, public choice, defense, and education. Modern economics is narrower and more empirical than the older tradition, so many contemporary economists may be less able to speak to broad civilizational questions. GPT-4 embedded in the book is presented as a new mode of reading that can summarize chapters, generate anecdotes, and compare interpretations instantly.

Data Points: Tyler Cowen appearance count on EconTalk: 18th appearance - Russ Roberts notes this is Cowen’s eighteenth visit to the show. Publication date of episode: October 30, 2023 - The interview is introduced with the recording date. Tyler Cowen’s age: 61 years old - Cowen jokes that it took him 61 years to write the book. Finalists in the GOAT debate: 6 economists - Smith, Malthus, Mill, Friedman, Keynes, and Hayek are the finalists. Semifinalists: 5 economists - Marshall, Samuelson, Arrow, Becker, and Schumpeter are named as semifinalists. Book chapter count in Mill’s collected works: 33 volumes - Russ and Tyler discuss how extensive Mill’s collected works are. Friedman conference timing: 2nd time Cowen spent time with Friedman - Cowen describes a later meeting in Dallas where he asked about school vouchers. Hayek article count highlighted as elite: 5 best articles ever (or top 3) - Cowen repeatedly emphasizes Hayek’s top articles, especially Use of Knowledge in Society and Competition as a Discovery Procedure. Key Keynes reparations magnitude: a few percent of GDP - Cowen argues Germany’s reparations burden was significant but often overstated. GPT version embedded in the book: GPT-4 - The book includes an interactive GPT-4 layer at econgoat.ai. Book access: free / open access - Cowen notes the book is available online without charge.

Pivotal Quotes: "I wish to present economics as a vehicle for carrying ideas about the world." — Tyler Cowen: Cowen explains the book’s intellectual mission and what economics used to be about. "To be GOAT for economics, you have to have breadth and depth. You have to have been not too wrong. You have to have been of historical import." — Tyler Cowen: He lays out the criteria used to judge economists. "It’s the future of writing and reading." — Tyler Cowen: Cowen justifies embedding GPT-4 into the book as a new reading interface.

Implications: The episode reframes economics as a history of big ideas, not just methods. It also suggests classic economists still matter for public reasoning, while AI may transform books into interactive research tools.