Understanding Market Efficiency

Basil Halperin is an assistant professor of economics at the University of Virginia. He joins the podcast to discuss what economic indicators reveal about AI timelines. We explore why interest rates might rise if markets expect transformative AI, the gap between strong AI benchmarks and limited economic effects, and bottlenecks to AI-driven growth. We also cover market efficiency, automated AI research, and how financial markets may signal progress.

• Basil's essay on "Transformative AI, existential risk, and real interest rates": https://basilhalperin.com/papers/agi_emh.pdf
• Read more about Basil's work here: https://basilhalperin.com/

CHAPTERS:

(00:00) Episode Preview

(00:49) Introduction and Background

(05:19) Efficient Market Hypothesis Explained

(10:34) Markets and Low Probability Events

(16:09) Information Diffusion on Wall Street

(24:34) Stock Prices vs Interest Rates

(28:47) New Goods Counter-Argument

(40:41) Why Focus on Interest Rates

(45:00) AI Secrecy and Market Efficiency

(50:52) Short Timeline Disagreements

(55:13) Wealth Concentration Effects

(01:01:55) Alternative Economic Indicators

(01:12:47) Benchmarks vs Economic Impact

(01:25:17) Open Research Questions

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