The World Trade Organization has issued a stark warning that the global trading system is standing at a critical juncture, with its latest flagship report outlining how a further retreat from multilateral cooperation could carry a heavy price tag for the world economy.
Released on September 15 in Geneva to coincide with the opening of the WTO Public Forum, the World Trade Report 2026 paints a nuanced picture of a system that remains resilient yet increasingly strained. In a press briefing ahead of the launch, WTO Chief Economist Robert Staiger highlighted a central paradox: many of the pressures confronting the multilateral trading system today are, to a significant degree, a byproduct of its own success.
The report opens with five key figures that capture the current state of global trade. First, approximately 72% of global merchandise trade still occurs under Most-Favoured-Nation (MFN) tariff treatment, although this is down from 80% two years ago. Second, trade among WTO members has grown by roughly 140%. Third, low- and middle-income economies have seen their share of global trade climb from 23% in 1995 to 45% in 2024. Fourth, digitally delivered services now account for about 55% of global services exports, a more than fivefold increase since 2005. Fifth, depending on how trade cooperation evolves, the divergence in global real GDP relative to a baseline scenario could reach as high as 10 percentage points.
The report notes that over the past eight decades, the global trading system has driven down barriers, making the world economy more open, more integrated, and more reliant on rules. Global trade volumes have expanded nearly fiftyfold, and developing economies now play a far larger role than ever before. Yet the redistribution of economic power, the deep integration of production networks, and the growing complexity of cross-border activity mean that the rulebook inherited from the past is now being tested in a world vastly different from the one in which it was written.
Why cooperation still beats going it alone
"The multilateral trading system is at a critical juncture not because cooperation has lost its meaning, but because cooperation must now function under more complex and demanding conditions," Staiger said during the briefing. The report confronts a host of challenges reshaping global trade rules, from the resurgence of industrial policy and the transformative impact of digitalisation and artificial intelligence to supply-chain reconfiguration and intensifying geopolitical tensions.
As WTO Director-General Ngozi Okonjo-Iweala emphasised, the global trade landscape has changed dramatically, yet the fundamental logic underpinning the multilateral system remains as valid as ever: the gains from cooperation exceed those from unilateral action. Despite recent trade frictions, tariff disputes, and supply-chain realignments, the core rules of the WTO still govern the vast majority of global commerce. Staiger acknowledged that the share of trade under MFN terms has slipped from about 80% two years ago, reflecting mounting pressure on the system, but he stressed that 72% is hardly a sign that multilateral rules have been abandoned.
The WTO uses these figures to underscore the system's long-term value. According to the report's estimates, WTO membership is strongly associated with increased trade among members, with trade volumes between members rising approximately 140%. Without the common rules and predictable environment the WTO provides, trade among members would likely be far lower than it is today. Meanwhile, the rising share of low- and middle-income economies in global trade, from 23% in 1995 to 45% in 2024, is seen not only as a redistribution of economic power but also as evidence of the tangible benefits of trade opening and economic integration over recent decades.
Digital trade is another trend that cannot be ignored. Digitally delivered services have grown more than fivefold since 2005 and now constitute about 55% of global services exports, a trajectory that could accelerate further with advances in artificial intelligence. In its 2025 World Trade Report, the WTO estimated that AI could add 13.2% to global GDP over the next 15 years. Staiger noted that many of the new challenges posed by digital trade extend far beyond the traditional scope of tariff negotiations.
State intervention in the economy is also evolving. Industrial policies, subsidies, and government support for strategic sectors are nothing new, but their scale, scope, and political salience have grown considerably. Governments are increasingly using such tools to drive economic development, address climate change, compete for technological leadership, and bolster supply-chain resilience and national security. This presents the WTO with an increasingly difficult question: different economies do not need to adopt the same economic model, but how can different models coexist under a single set of international trade rules?
Three possible futures for the global trading system
Against this backdrop, the WTO report models three distinct scenarios for the future of global trade. The first is a scenario of strengthened multilateral cooperation, in which WTO rules are reinforced, members expand their market-opening commitments, new multilateral rules are established for digital and services trade, and institutional design seeks to balance trade openness with national security concerns. Under this scenario, global GDP could be 2.9% higher by 2050 relative to the baseline, with global exports rising by 17.9%. The benefits would be especially pronounced for least-developed countries (LDCs), whose GDP could increase by 7.7%. With LDCs currently accounting for less than 1% of global trade, reductions in tariffs and other trade costs would have a disproportionately large impact on them.
The second scenario envisions a "geopolitically fragmented world," in which trade cooperation increasingly revolves around distinct geopolitical blocs and the global trading system is carved up along political and economic lines. The simulations show that global GDP could be 5.1% lower than the baseline by 2050, with global exports falling 18.6%.
The third scenario, an "FTA world," sees multilateral cooperation replaced by a patchwork of preferential trade agreements that lack a common multilateral framework. In this case, global GDP could decline by 6.9% and global exports by 26.9%. These projections imply that the opportunity cost between enhanced multilateral cooperation and a further weakening of the rules-based system could amount to roughly 5% to 10% of global real GDP relative to the baseline.
Staiger was careful to stress that these figures are not predictions of what will happen by 2050 but rather model-based simulations of different institutional arrangements. Their purpose is not to forecast the precise level of future GDP but to illustrate a broader point: the institutional architecture of trade rules and international cooperation has a profound impact on long-term economic performance. Moreover, that impact will not be evenly distributed. Smaller and economically weaker nations are likely to bear a disproportionate share of the burden.
In this sense, the WTO report is not a simple call to return to the past. It explicitly acknowledges that the global economy of recent decades has been fundamentally transformed. The world economy is more open and more multipolar; trade is more digital and more deeply embedded in global value chains; government intervention in industry, security, and climate policy is on the rise; and geopolitical competition has entered trade policy more directly than ever. Yet Director-General Okonjo-Iweala maintains that history itself offers reasons for optimism. Over the past 80 years, the multilateral trading system has never been static. Members of the GATT and the WTO have repeatedly found pragmatic and flexible solutions in new economic environments. That, she argues, is what makes this a critical juncture: not that cooperation has lost its value, but that it must find new ways to work.