OECD slashes global growth as Iran war enters its fourth week

The simultaneous selloff in equities and bonds is the most significant market development of the week. Normally, Treasuries rally when stocks fall as investors seek safety — but with yields rising alongside declining equity prices, markets are pricing a stagflationary scenario: slowing growth compounded by supply-driven inflation that central banks cannot easily address by cutting rates. The OECD’s inflation projection of 4% for the G20 reinforces this read.

The divergence between Asian markets (higher) and Western markets (lower) reflects the differential exposure to Middle East energy disruption. Asia’s partial insulation via alternative supply routes and regional energy contracts is increasingly visible in price action. Gold’s outperformance — rising even as oil eases slightly on US peace plan reports — signals that investors are hedging against currency debasement and prolonged uncertainty rather than just near-term energy price risk.

Saudi Arabia’s non-oil exports rose 22.1% in January according to GASTAT, a figure that underscores the kingdom’s economic diversification progress even as the Iran war creates headwinds for regional trade. Separately, Saudi Arabia boosted oil exports from its Yanbu Port toward the 5 million barrel-per-day target, while a new rail freight corridor linking Eastern ports to the Jordan border was unveiled — part of Vision 2030’s logistics infrastructure push.

On the disruption side, Arabian Drilling has halted some Gulf offshore rigs amid the regional conflict, and Iraq is planning a new pipeline to Syria as its oil exports slump. High airfares across MENA have surged by up to 560%, threatening the upcoming holiday season and putting pressure on Gulf aviation hubs whose long-haul connectivity models depended on Hormuz route stability.

The OECD’s coordinated downgrade marks a turning point: the Iran war is no longer being modelled as a temporary shock but as a structural reset for the global economy. Three simultaneous channels — energy cost inflation, supply chain disruption, and trade route rerouting — are compressing growth across geographies in ways that monetary policy cannot easily reverse. The simultaneous selloff in equities and bonds today illustrates the bind facing central banks: raising rates to fight inflation would deepen the growth slowdown, while cutting them would entrench inflationary expectations.

Saudi Arabia’s non-oil export strength and its continued infrastructure investment signal that the GCC is positioned to benefit from the reconfiguration of trade routes and energy supply relationships. For long-term investors, the divergence between structurally advantaged regions and those most exposed to energy disruption is becoming the defining allocation question of 2026.