← Back to PeopleEYOtherEd YardeniEconomist at Yardeni ResearchLinkedInWebsiteEd Yardeni is an economist at Yardeni Research.1Mentions1Articles1OutletsCompanies CoveredAI Now1Alphabet1Amazon1Capital Economics1CBS News1Gartner1Goldman Sachs1Oracle1Pew Research1Vanguard1Yardeni Research1ArticlesMost recent firstMentioned InReferenced in coverageBig Tech is spending trillions on AI. Investors now want proof it will pay off.CBS NewscautiousAug 9, 2026“Economist conducting capex payback tests to assess whether AI companies can generate enough revenue to justify infrastructure investments.”