239 · Tier 5 — High-leverage niche and emerging figures

Alex Tabarrok

Writer, Marginal Revolution

AI position

Aware of x-risk

Blog recurringly covers AI existential risk debates but rarely engages the core AI-world roster directly.

Why influential

Owns a direct subscriber relationship and can repeatedly shape a high-value niche without depending on a traditional newsroom's front page. Primary policy lanes: economics; regulation; innovation; public health.

Who pays attention

Economists, founders, policy reformers, public-health professionals and innovation advocates

Work samples

AI-world contacts

  • Sam Altman CEO, OpenAI

    • Quoted / citeddirectness unclassified · Jan 6, 2025Tabarrok's post quotes at length Altman's essay on AI agents joining the workforce and the pursuit of superintelligence.
  • Ronnie Chatterji Chief Economist, Global Affairs, OpenAI

    • Wrote aboutdirectness unclassifiedPublicly engaged with Tabarrok/Cowen's OpenAI fireside chat on AI economics.
  • Wyatt Thomson Host/moderator of OpenAI fireside chat series, OpenAI

    • Wrote aboutdirectness unclassifiedHosted the OpenAI fireside chat featuring Tyler Cowen and Alex Tabarrok on AI, jobs, and economic growth (June 2026).