The global outlook is becoming increasingly challenging. Substantial increases in barriers to trade, tighter financial conditions, weaker business and consumer confidence and heightened policy uncertainty will all have marked adverse effects on growth prospects if they persist. Higher trade costs, especially in countries raising tariffs, will also push up inflation, although their impact will be offset partially by weaker commodity prices. Global GDP growth is projected to slow from 3.3% in 2024 to 2.9% this year and in 2026 (Table 1.1), on the technical assumption that tariff rates as of mid-May are sustained despite ongoing legal challenges. The slowdown is concentrated in the United States, Canada and Mexico, with China and other economies expected to see smaller downward adjustments. Growth through 2025 is expected to be especially weak, with global output rising by just over 2½ per cent over the year to the fourth quarter, and by only 1.1% in the United States. Global trade growth is likely to slow substantially over the next two years, after significant front-loading ahead of expected tariff increases, and uncertainty is expected to hold back business investment. Fiscal easing will provide support in a handful of economies notably in China and Germany, where higher defence and infrastructure spending in 2026 could generate a significant upturn, but policy is likely to be mildly restrictive in many other countries. Annual headline inflation in the G20 economies is collectively expected to moderate from 6.2% to 3.6% in 2025 and 3.2% in 2026, but the United States is an important exception, with annual inflation expected to rise to just under 4% by the end of 2025 and remain above target in 2026.
There are substantial risks to these projections, with the scale and duration of the expected downturn remaining highly uncertain. Further increases or swift changes in trade barriers, including through retaliatory actions, as well as more cautious behaviour by consumers and firms, or continued risk repricing in financial markets could all intensify the growth slowdown and trigger significant disruptions in highly interlinked cross-border supply chains. Rising inflation expectations by households could prolong inflationary pressures, especially in economies facing substantially higher trade costs or with still‑tight labour markets, prompting more restrictive monetary policy and weakening growth prospects. Financial stability risks from still richly-valued and concentrated equity markets and high corporate financing needs could be triggered by additional risk repricing and amplified by forced asset sales by highly-leveraged non‑bank financial intermediaries. On the upside, a reversal of the increase in trade barriers would support growth and reduce inflation, even if it did not immediately result in lower policy uncertainty. Steps to ease regulatory burdens, and an early resolution to conflicts in Europe and the Middle East, could also improve confidence and incentives to invest.
Against this backdrop, the key policy priorities are to ensure a lasting decline in trade tensions, policy uncertainty and inflation, establish a credible fiscal path to debt sustainability while providing temporary support to those vulnerable to economic shocks, and implement ambitious reforms to strengthen growth prospects and improve competitiveness.
Countries need to find ways of working together within the global trading system and to make trade policy more predictable. Agreements to ease trade tensions or potentially lower existing trade barriers would be welcome, improve policy certainty and strengthen the prospects for investment and growth. Steps to lower tariffs, deepen trade agreements or reduce barriers to trade in services would also benefit productivity and living standards. Key areas where opportunities exist for services trade reforms include further improvements in trade facilitation, reductions in regulatory barriers that impede access to national markets, and initiatives to enhance the cross-border digital delivery of services.
Central banks should remain vigilant given heightened uncertainty and the potential for initial increases in trade costs to push up wage and price pressures more generally. The balance of risks for central banks will vary across countries, with the downside effects of higher uncertainty and weaker exports likely to be the key influences on policy decisions in most countries, but upside inflationary pressures being a more pertinent concern in countries raising tariffs. Provided inflation expectations remain well anchored, and trade tensions do not intensify further, policy rate reductions should continue in economies in which underlying inflation is projected to moderate or remain subdued.
Faced with multiple spending pressures, governments need to ensure long-term debt sustainability and maintain the ability to react to future shocks. Stronger efforts to contain and reallocate spending and enhance revenues, set within credible medium-term country-specific adjustment paths, will be essential for debt burdens to remain manageable and to conserve the resources required to address longer term spending challenges. Higher debt service costs and some pressing spending needs, such as plans to raise defence spending substantially, are already forcing hard choices in some countries about the pace and composition of fiscal adjustment and limiting room for budgetary manoeuvre. In the near term, the automatic fiscal stabilisers should be allowed to operate fully to help cushion the adverse impact of trade tensions and elevated uncertainty. Targeted and well-designed support measures may also be needed to help companies but should be only temporary, as structural policy solutions are key if the adverse effects on external competitiveness are likely to endure.
Rising protectionism, geopolitical uncertainty and weak growth prospects reinforce the need for ambitious structural policy reforms that strengthen living standards and promote economic competitiveness. A strong focus should be placed on policies to revive business investment, innovation and labour productivity, particularly ones that have a limited near-term fiscal cost. Elevated policy uncertainty, declining business dynamism and perceived difficulties in funding future investment in intangible assets are factors that need to be addressed in many OECD economies to strengthen investment growth.