The WEO Wartime Economic Outlook

Key Takeaways

• Reference scenario forecasts 2.9% global growth in 2026, 3.0% in 2027
• Headline inflation expected at 3.4% in 2026, 3.2% in 2027
• Adverse war scenario cuts growth by ~0.5 points, raises inflation 0.8 points
• Emerging markets face larger output gaps than advanced economies

Pulse Analysis

The International Monetary Fund’s April 2026 World Economic Outlook introduces a reference forecast that incorporates a short‑duration war, a departure from the agency’s usual baseline assumptions. Under this scenario, the global economy is expected to expand at 2.9% in 2026 and 3.0% in 2027, while headline inflation moderates to 3.4% and 3.2% respectively. These figures represent a modest downgrade from the pre‑conflict outlook, reflecting the immediate disruption to trade flows, energy markets, and investment sentiment.

The report also models adverse and severe war‑related pathways, which depress global growth by roughly half a percentage point and push inflation up by about 0.8 points. Emerging market and developing economies bear the brunt of the shock, with larger output gaps and tighter financing conditions, whereas advanced economies see a more contained impact thanks to deeper fiscal buffers. Central banks are urged to remain vigilant, balancing the need to curb inflation with the risk of tightening too quickly in a fragile growth environment.

For investors and corporate strategists, the WEO’s war scenarios underscore the importance of scenario planning and diversification. Higher inflation expectations could sustain elevated commodity prices, benefiting resource‑heavy exporters but squeezing import‑dependent consumers. Meanwhile, slower growth may pressure sovereign debt markets, especially in countries with limited fiscal space. Companies should monitor policy responses, supply‑chain resilience, and currency volatility as the IMF’s outlook informs both short‑term tactical moves and longer‑term strategic positioning.