Research

Secular outlook for global growth: The next 20 years

Slower economic growth is expected to result in less of a tailwind for equities.

By: Irina Tytell Kana Norimoto
Updated: 9/30/2026
Key Takeaways
  • The Fidelity Asset Allocation Research team’s secular gross domestic product (GDP) growth framework is a proprietary, dynamic approach, serving as a foundation for developing long-term capital market assumptions for asset class returns.
  • Global growth is expected to be 2.0% over the next 20 years, down from 2.7% for the previous 20 years, with the U.S. averaging 1.8% annually and developing economies likely to register the highest GDP growth rates.
  • Even though demographic constraints are set to dampen global growth prospects, other secular trends, including artificial intelligence (AI) technologies, may boost productivity in some countries.
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