"Econ 102" with Noah Smith and Erik Torenberg

AI Business Models, Rare Earths, and China's Economic Challenges

November 11, 2025·54 min
Episode Description from the Publisher

In this episode of Econ 102, Noah Smith and Erik Torenberg explore AI's effects on productivity, how AI business models will shake out, the US and China's rare earth minerals industries, and China's economic challenges, including demographics, real estate, and involution.-Sponsors:NotionAI meeting notes lives right in Notion, everything you capture, whether that's meetings, podcasts, interviews, conversations, live exactly where you plan, build, and get things done.  Here's an exclusive offer for our listeners. Try one month for free at https://www.notion.com/lp/econ102.NetSuiteMore than 42,000 businesses have already upgraded to NetSuite by Oracle, the #1 cloud financial system bringing accounting, financial management, inventory, HR, into ONE proven platform. Download the CFO's Guide to AI and Machine learning: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠https://www.netsuite.com/102Found Found provides small business owners tools to track expenses, calculate taxes, manage cashflow, send invoices and more. Open a Found account for free at https://found.com/-Shownotes brought to you by Notion AI Meeting Notes - try one month for free at https://www.notion.com/lp/econ102AI can affect productivity in multiple ways: replacing humans, enhancing human productivity, creating new tasks, and increasing capital productivityAI may follow other essential industries with low profit margins despite creating enormous value:Like farming, solar power, and airlinesCode-related AI applications are seeing particularly strong adoptionVertical AI applications in specific industries (healthcare, legal, real estate) are gaining tractionChina controls the majority of rare earth mining and refiningThe US has sufficient rare earth deposits but faces two challenges:Regulatory barriers to miningLack of solvent extraction technology and know-howChina's fertility rate is lower than Japan and EuropeHowever, a "baby bulge" (ages 7-22) will support the workforce short-term-Timestamps:00:00 — Intro00:52 — AI’s impact on productivity02:27 — Debating whether AI will increase productivity03:11 — Historical analogy: Electricity’s impact on productivity, lessons for AI07:55 — Sponsors: Notion | Netsuite09:57 — Application layer companies, AI in coding, vertical AI applications12:49 — AI bubble vs. CapEx boom/bust, historical parallels (railroads, telecoms)16:54 — Brand loyalty, price wars, and profitability in AI models22:26 — US-China trade, rare earths, and supply chain challenges32:20 — Sponsor: Found33:33 — China’s demographic and economic challenges, over-competition, and deflation54:06 — Recommendations for China’s economic policy, rationalizing the economy-FOLLOW on X:https://x.com/eriktorenberghttps://x.com/Noahpinion-Please note that the content here is for informational purposes only; should NOT be taken as legal, business, tax, or investment advice or be used to evaluate any investment or security; and is not directed at any investors or potential investors in any a16z fund. a16z and its affiliates may maintain investments in the companies discussed. For more details, please see https://a16z.com/disclosures. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

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