Summary
David Beckworth discusses why central banks struggle with supply shocks, the fragility of inflation expectations, and the potential for AI to raise real rates. He also covers QE's ratchet effect, fiscal dominance risks, and the limited impact of stablecoins on US debt sustainability.
- Central banks have difficulty distinguishing supply vs demand shocks in real time.
- Inflation expectations are more sensitive post-COVID, shown by Google Trends and I-bond purchases.
- AI-driven productivity could raise real interest rates, not lower them.
- The Fed's QE has created a ratchet effect that makes it hard to shrink balance sheet.
- Fiscal unsustainability is the biggest medium-long term challenge for central banks.
- Stablecoins may provide marginal support for US debt but not solve fiscal problems.
- Private credit growth is not yet a major concern but warrants monitoring.
- Nominal GDP targeting is proposed as a more robust monetary framework.