World GDP grows 7% in a year

Where things stand

• Latest IMF numbers (October 2026 WEO, released 13 Oct 2026). World growth (purchasing-power weights) is 3.5% for 2025. The IMF projects 3.1% for 2026, 3.4% for 2027, 3.3% for 2028, 3.2% for 2029 and 3.1% for 2030–31. I pulled these from the DataMapper API (https://www.imf.org/external/datamapper/api/v1/NGDP_RPCH/WEOWORLD) and the IMF data service (https://api.imf.org/external/sdmx/2.1/data/IMF.RES,WEO,9.0.0/G001+USA+CHN+IND.NGDP_RPCH.A).
• Context. The 2026 slowdown reflects a Middle East war that closed the Strait of Hormuz, partly offset by AI investment. The IMF projects the US at 2.3%, China at 4.5% and India at 7.0% (CNBC, 12 Oct 2026).
• Which years can count. Only 2026–2030. 2031 does not finish in time to be reported by end-2031.
• When results get published. The first IMF estimate for a year comes in the January WEO Update that follows it. For example, the January 2026 Update reported "the estimated 3.3 percent outturn in 2025", later revised to 3.5%. Revisions then follow in April, July and October. So each eligible year has its first chance to resolve the question in Q1 of the next year.

Reference class and base rate

• IMF series, 1980–2025. I computed the maximum over 46 years: 6.675% in 2021, the rebound after COVID. That figure started at about 5.9% in January 2022 and was revised up over time.
• World Bank series, 1961–2025. Constant-dollar world growth from the World Bank API (NY.GDP.MKTP.KD.ZG, WLD). The maximum over 65 years is 6.63% (1964).
• Base rate. No year has reached 7% in either series. The only near miss was a rebound from the deepest peacetime shock in 75 years. Trend growth is about 3%, so 7% needs roughly 4 points above trend.

Paths to YES

1. Sharp rebound after a disaster. A COVID-scale or larger sudden shock in 2027–29 (pandemic, brief war or blockade) would have to be followed by a V-shaped recovery of at least 7%, possibly reached through later upward revisions. Shocks of that size have happened about once in 75 years, and I give a ≥7% rebound about 25–40% given one. That is about 0.2% per rebound year, or about 0.6% in total. Nothing like that is under way now: the Ebola outbreak is regional, and oil-shock or AI-crash recessions recover slowly.
2. AI-driven growth surge. The US is only about 15% of world GDP at purchasing-power weights. World growth of 7% therefore needs roughly 15%+ growth in both the US and China, or a broad global acceleration.
   • Economists and superforecasters surveyed by the Forecasting Research Institute (March 2026) give a 10th–90th percentile range of 0.7–4.6% for US growth in 2030. Even if AI progress is "rapid", the range is 1.2–6.4%.
   • Anthropic's scenario model (Sept 2026) reaches 15% US growth only in its "extreme" case.
   • Even the most bullish forecasters (AI Futures Project) put the default takeoff around 2030 and the explosive growth in the 2030s.
   • On the other side, AI progress in 2026 is fast (OpenAI's automated research intern; Claude leading about 26% of Anthropic's R&D work). Manifold's market on the Moll–MacAskill bet gives 29% that US per-person growth reaches 15% by 2033, though that is likely a bullish skew.
   • I blend these at about 0.1% for 2028, 0.35% for 2029 and 0.75% for 2030, about 1.2% in total.

Hazard profile

• About zero through 2027, because the 2026 and 2027 estimates sit near 3%.
• First-estimate hazards in Q1 of each following year: about 0.03% (Jan 2028), 0.28% (Jan 2029), 0.55% (Jan 2030) and 0.95% (Jan 2031).
• Smaller amounts in the later quarters of each year for upward revisions.
• Cumulative: 0.05% by end-2028, 0.4% by end-2029, 1.1% by end-2030, 2.3% by end-2031.

Strongest case against my estimate

• Higher. Forecasters have repeatedly underestimated AI progress, and AI insiders openly expect double-digit growth. A thin Manifold market gives 18% to world growth above 7% in some year 2024–29. I discount that market because the 2024–26 outcomes are already known to be about 3–3.5% and 2027 is projected at 3.4%. Any AI acceleration also has to show up in national accounts, which are slow and physically constrained by energy, chips and construction.
• Lower. It has never happened, and economists' central forecasts are near 2.5%, which would argue for under 1%. I keep a small allowance for fast AI takeoff and for disaster rebounds.

Sources

• IMF DataMapper/WEO data service, October 2026 vintage (accessed 16 Oct 2026).
• World Bank API, NY.GDP.MKTP.KD.ZG.
• CNBC, 12 Oct 2026.
• IMF January 2026 WEO Update text.
• Forecasting Research Institute, "Forecasting the Economic Effects of AI", Mar 2026: https://forecastingresearch.org/research/economic-effects-of-ai
• TNW / ZME Science on Anthropic's economic scenarios, Sept 2026.
• Imas & Moll, "Will AI soon lead to double-digit growth?", 2026.
• Manifold markets (API, 16 Oct 2026).
• AI Futures Project Q2.5 2026 timelines update (Aug 2026).

Question. By the last day of each quarter, has the IMF reported world real GDP growth of 7% or more for a completed calendar year?

Definitions.

• World real GDP growth: the IMF World Economic Outlook (WEO) annual percentage change in real GDP for the World aggregate, series NGDP_RPCH, using the WEO's purchasing-power-parity weighting. This is the headline World Output annual growth figure in the WEO's “Overview of the World Economic Outlook Projections” table (Table 1.1 in full reports and Table 1 in updates), not the separate market-exchange-rate-weighted measure.
• Completed calendar year: a January–December year that ended before the qualifying publication. Under the Observation period convention, the earliest eligible year is 2026. Preliminary estimates for a completed year count; final national accounts for every constituent country are not required.
• 7% or more: a reported value greater than or equal to 7.0%. Use the most precise value published for that observation in the same release, including its accompanying database; do not round a value below 7% upward. If only a one-decimal figure is published, 7.0% counts.

Resolves YES if an eligible IMF publication reports the defined figure at or above the threshold for an eligible completed year. An initial estimate or a subsequent revision may qualify. The figure must be the IMF's current estimate of the completed year's outcome, not a quotation of an earlier forecast. Later downward revisions do not reverse a YES, under the Resolution window convention. No attribution to AI is required.

Resolves NO for a quarter if no qualifying report has been published by its end. Forecasts for incomplete or future years, hypothetical scenarios, regional or national growth figures, nominal GDP growth, per-capita growth, quarterly annualized growth, and fourth-quarter-over-fourth-quarter growth do not count. A revision or republication concerning 2025 or an earlier year does not count.

Resolving source. IMF-authored publications only: the World Economic Outlook, WEO Updates, the WEO database and its official IMF Data portal or DataMapper presentation, or another IMF publication explicitly reporting the same WEO World annual real-GDP-growth series. Successor IMF publications or series count only if they retain this measure. Third-party reports do not independently resolve the question. Apply the Resolution window, Observation period, and Resolution date (A3) conventions; a database observation must be attributable to a dated public release.