WTO maps the global cost of trade fragmentation
The WTO’s September report compares stronger international cooperation with competing paths towards fragmented trade.
Relative to its baseline, the WTO models global GDP 2.9% higher by 2050 under stronger multilateral rules, 5.1% lower under geopolitical blocs and 6.9% lower under an FTA-based fragmented system.
Why it matters
The scenarios concern the rules governing cross-border trade, supply chains and access to markets worldwide.
The important comparison is between different systems of cooperation, rather than a single tariff announcement. Businesses plan production around market access and predictable rules. More fragmented arrangements could require different sourcing and compliance choices, but their costs would vary by sector and trading partner.
A long horizon also leaves substantial room for policy to change. The report provides a way to examine choices, not a timetable for an inevitable decline. Watch actual agreements, export restrictions and implementation before translating the scenarios into a company’s prospects. A modelled difference in world GDP does not establish what will happen to any particular share price.
Original source · World Trade Organization
Read the original source · Source date: 15 Sep 2026
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