We Asked Vanguard’s Chief Economist Why AI Has Two Huge Tails — And Which One Wins

AI could become the next general purpose technology, reshaping economic growth, inflation, interest rates and portfolio construction. Vanguard Global Chief Economist Joe Davis joins Excess Returns to explain why AI, demographics, fiscal deficits and globalization may define the next decade for investors, and why the biggest market winners may eventually come from outside the technology sector.Coming into View: How AI and Other Megatrends Will Shape Your Investmentshttps://amzn.to/4v8L7OfVanguard Megatrends Research Hubhttps://explore.vanguard.com/megatrends.htmlTopics Covered:AI as a potential general purpose technologyWhy long-term megatrends can affect short-term market returnsThe four forces shaping the next decade: technology, demographics, deficits and globalizationWhy Vanguard believes AI could lift U.S. growth above consensusHow AI could offset aging demographics and rising debtWhy great technology cycles often include major stock market drawdownsThe difference between AI automation, augmentation and new industry creationWhy the next AI winners may be in healthcare, financial services and other service industriesThe risk that AI disappoints and fiscal deficits dominate the outlookHow tariffs, oil prices and AI investment interact in the macro outlookWhat AI could mean for 60/40 portfolios, value stocks, fixed income and international marketsJoe Davis’ lesson for average investors: the power of compoundingTimestamps:00:00 Why every great technology eventually faces a market drawdown04:28 The four megatrends shaping the economy08:56 How megatrends explain short-term S&P 500 moves13:22 Why AI may be in the 1996 or 1997 stage18:29 Where the next AI winners could emerge21:44 AI, fiscal deficits and the danger of kicking the can26:17 Why 2% growth and 2% inflation may be unlikely30:31 How to tell if AI augmentation is really working33:19 AI, globalization and which countries could benefit38:14 Why investors need a multi-factor macro scorecard41:23 What AI means for the 60/40 portfolio44:12 Joe Davis on investing, compounding and Vanguard’s megatrends research