Section I: We’re All Geopolitical Supply Siders Now

The report argues that geopolitical and technological supply shocks have become major drivers of economic volatility, replacing demand fluctuations as the principal source of unexpected macroeconomic outcomes. Wars, tariffs, export controls, artificial intelligence (AI) and concentrated supply chains increasingly affect production, inflation and investment.

Kremer’s O-ring theory explains how failure at one production stage can disrupt an entire network. The authors propose incorporating geopolitical and regulatory factors into economic and investment analysis, an approach termed “contextual alpha”.
Section II: Observing The New Supply-Side Era In Market Prices And Economic Forecasts
Financial markets increasingly price long-term uncertainty. By 2026, implied interest-rate volatility over two- and ten-year horizons had converged. The US ten-year Treasury term premium increased approximately 1.6 percentage points from the end of 2020 to August 2026.

Federal Reserve projections also show widening disagreement about long-term growth. The authors interpret these developments as evidence of increased uncertainty about productive capacity.
Section III: From An Era Of Elastic Supply To One Of Accommodating Demand
Globalisation previously expanded supply flexibility through international production networks. China’s manufacturing value added increased from approximately US$0.6 trillion in 2004 to US$4.7 trillion in 2024.

Since 2008, global trade has broadly stabilised relative to GDP, while geopolitical fragmentation has redirected investment and sourcing. Meanwhile, monetary and fiscal interventions have reduced demand volatility, although growing public debt raises concerns about the sustainability of these responses.
Section IV: What’s New (We Are Not In Barro’s World Anymore)
Unlike traditional supply-side economics, which emphasised taxation and investment incentives, today’s supply disruptions originate increasingly from geopolitical decisions and interconnected production networks.

Concentrated dependencies amplify shocks. Semiconductor shortages disrupted vehicle manufacturing, with more than 9.5 million planned light vehicles lost globally in 2021. The report argues that supply flexibility, network exposure and strategic bottlenecks have become central economic considerations.

Section V: Implications

Implication 1: Inflation

Supply disruptions affect inflation through delayed deliveries, inventory shortages and changing corporate margins. The authors’ analysis attributes approximately 60% of annual inflation in late 2021 to delivery delays, rising to nearly 80% when margins and inventory pressures are included. Central banks should monitor these transmission delays and exercise caution when disregarding supply shocks.

Implication 2: Centrality Of Chokepoints And The O-Ring

Concentrated dependencies in semiconductors, critical minerals, shipping routes and energy infrastructure create systemic vulnerabilities. Disruptions can increase costs and reduce output across multiple industries. The report advocates investment in alternative suppliers and additional production capacity to improve resilience.

Implication 3: The “Abundance” Policy Movement

The authors support expanding productive capacity rather than relying primarily on demand subsidies. Housing, healthcare and energy face regulatory and infrastructure constraints. Faster planning approvals, permitting and electricity-grid development could reduce bottlenecks.

Implication 4: As Firms Continue To Navigate The New Supply Side, Firm Dispersion Will Continue To Widen

Supply shocks affect businesses unevenly. Firms with diversified suppliers and operational flexibility are better positioned than those dependent on concentrated supply chains. The report highlights widening corporate performance differences, with returns on invested capital at the 95th percentile reaching approximately 101% during 2003–2023.

Implication 5: Artificial Intelligence

AI could substantially improve productivity, but the distribution of financial returns remains uncertain. Competition, open-weight models and infrastructure costs may affect profitability. Investors should distinguish technological adoption from the ability of individual companies to capture returns.

Implication 6: The Physicality Of Supply

Digital and financial systems remain dependent on physical infrastructure. Submarine cables carry an estimated 95–99% of intercontinental data traffic. The report identifies telecommunications, semiconductor fabrication and satellite navigation as critical vulnerabilities requiring greater resilience.

Section VI: Conclusions

The authors recommend integrating geopolitics into economic forecasting, monetary policy and investment analysis. Diversifying suppliers, production locations and transport routes is preferable to pursuing complete domestic self-sufficiency. Long-term economic and corporate performance will increasingly depend on supply-network resilience and exposure to strategic chokepoints.