The warning came in the WTO’s latest annual report, which said the global trading system was at a critical juncture. Countries face a choice between strengthening cooperation and allowing trade to become increasingly organised around competing geopolitical blocs.
A world divided into rival trading blocs could reduce global gross domestic product by 5.1% and exports by 18.6% by 2050, according to the report. The WTO also outlined a more severe scenario in which the global economy could lose nearly 7% of its output if the multilateral trading system were to break down entirely.
The 10% figure reflects the broader economic cost of failing to preserve and strengthen an open, rules-based trading system.
Reform or fragmentation
The WTO said a stronger multilateral trading framework could instead increase global GDP by an estimated 3% by mid-century, equivalent to roughly USD 3 trillion in additional economic output.
The report highlights the growing pressure on the institution, which has 166 members and operates on the principle of consensus. Members have struggled to agree on reforms as economic power shifts, governments intervene more heavily in markets and national security concerns increasingly shape trade policy.
Talks on reform failed in March 2026, underscoring the difficulty of reaching agreement among countries with competing interests.
“The multilateral trading system is at a critical juncture,” the WTO said, warning that the world could either move toward renewed cooperation or deeper fragmentation.
The report said only about 72% of global goods trade now takes place under the WTO’s non-discriminatory trading rules, down from 80%. The decline reflects the growing use of tariffs, trade restrictions and preferential arrangements that fall outside the traditional framework.
Tariffs and industrial policy
The resurgence of protectionism has become a central concern for the WTO.
Governments have increasingly introduced tariffs, subsidies and industrial policies aimed at protecting domestic industries, securing supply chains and supporting strategic sectors.
The WTO described the situation as a form of “prisoner’s dilemma”, in which governments may find it rational to protect their own economies, even when coordinated action would produce better results for everyone.
The problem is particularly acute when major economies impose tariffs on one another. Higher trade barriers can increase costs for businesses, disrupt supply chains and reduce the incentive to invest across borders.
The report said the rise of state intervention, together with changing economic power and geopolitical tensions, had made the existing trade rules increasingly difficult to apply.
Developing economies at risk
Poorer countries are likely to bear a disproportionate share of the economic damage if trade fragmentation continues.
Developing economies often depend heavily on access to international markets, foreign investment and predictable trading conditions. A more fragmented system could limit their export opportunities, raise import costs and make it harder to attract investment.
The WTO warned that the impact on the poorest economies could be several times greater than The WTO cautioned that the poorest economies could experience an impact several times greater than that of richer nations. by richer nations.
For countries in Asia and Africa, where export-led growth remains an important development strategy, the consequences could include weaker industrial activity, slower job creation and reduced income growth.
The report’s warning comes as developing countries face pressure to navigate competing trade and investment arrangements while managing higher costs and uncertain demand.
Dispute settlement and digital trade
The WTO’s dispute settlement system is another area requiring reform.
The organisation’s Appellate Body has been unable to function since 2019, leaving members without a fully operational system for resolving trade disputes. The failure to restore the mechanism has weakened confidence in the rules-based system and encouraged countries to pursue alternative approaches.
The WTO also needs to update its rules to reflect changes in the global economy.
Digital trade, artificial intelligence (AI), cross-border data flows and new technologies have created economic activity that was not adequately covered by many of the existing agreements.
Subsidies and industrial policy have also become more important as governments seek to support domestic production in sectors such as semiconductors, electric vehicles and clean energy.
The WTO said its rules must evolve to address these changes while preserving the benefits of a predictable international trading system.
A USD 3 trillion opportunity
The report’s estimate of a 3% increase in global GDP under stronger multilateral cooperation highlights the economic value of reform.
The potential gain of roughly USD 3 trillion by 2050 would come from greater trade integration, reduced barriers and improved economic efficiency.
The WTO said stronger cooperation could also increase global exports by nearly 18%, creating opportunities for businesses and workers across a wide range of sectors.
However, achieving those gains will require political agreement among members, including major economies whose trade policies increasingly reflect strategic and national security priorities.
The road ahead
The WTO has urged members to strengthen the multilateral system rather than allowing it to weaken further.
The organisation’s message is that reform is necessary not only to prevent damaging economic fragmentation but also to ensure that trade continues to support growth and development.
The challenge is whether governments can agree on changes to the institution’s rules, decision-making procedures and dispute settlement system at a time when geopolitical tensions are encouraging more unilateral action.
For the global economy, the stakes are substantial. The WTO’s projections indicate that the choice between cooperation and fragmentation could shape economic output, trade flows and development prospects for decades.
The warning comes at a time when tariffs, industrial policy, and geopolitical rivalry are already reshaping global trade.
Without reform, the institution risks losing its ability to provide a common framework for international commerce.
The WTO’s central argument is clear: preserving an open and predictable trading system is not simply a matter of trade policy. It is a requirement for protecting global economic growth through 2050.
