Observed Signal · Oct 6, 2026 · Analysis · Source: Paul Krugman · Impact: 4/5 · Sentiment: Negative
AI Boom Crowds Out Other Investment
Economist Paul Krugman argues that the current AI boom is causing significant 'crowding out' of other investments in the US economy. Massive spending on data centers and related equipment is driving up interest rates, which in turn reduces investment in housing, office buildings, factories, and other non-AI sectors. Unlike the 1990s tech boom, this time there is no foreign investment inflow to offset the effect. Krugman notes that the AI boom is subsidized by tax changes and questions whether private sector investment decisions are economically sound for the country. He cites rising financial stress in commercial real estate and other areas as a growing concern. The article includes charts showing that tech investment has risen sharply while all other investment has fallen, and contrasts this with the 1990s when both rose together.
The article provides high-quality economic analysis of a major macro trend (AI investment crowding out other sectors) directly relevant to the AdTech industry, as it affects capital allocation, interest rates, and the broader tech investment climate.
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Key Takeaways & Evidence Grounding
- AI-related spending is driving up long-term interest rates, crowding out investment in non-AI sectors.
- Data center construction is diverting resources from housing, office buildings, and factories.
- The 1990s tech boom did not cause crowding out due to large foreign investment inflows.
- Tax code changes under the 'One Big Beautiful Bill' subsidize the data center boom.
- Meta spent $80 billion on the metaverse, which was largely abandoned.
Connected Companies & Entities
1 Entity mapped“Meta, formerly known as Facebook, spent $80 billion on the 'metaverse,' only to basically abandon the concept....”
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