Chokepoints, supply chains and economic security
A framework for identifying dependencies that matter most when networks come under pressure.
This legacy research perspective has not been independently peer-reviewed. Consult the cited sources when interpreting its conclusions.
The importance of a supply-chain node depends on what would happen if it became unavailable—not simply on the volume that passes through it.
Trace the consequences
A structured assessment begins with the function a network supports. Researchers can then trace how a disruption would propagate, identify alternative routes or suppliers, and examine the time required to switch. This reveals the difference between a highly visible connection and a genuinely difficult-to-replace dependency.
Plan for more than one scenario
A useful scenario exercise varies the duration, geography and intensity of a disruption. It also considers how participants might adapt. A static map can indicate connections; a scenario can expose assumptions about inventories, substitution and institutional coordination.
Connect analysis to choices
Policy options should be judged against the specific vulnerability they address. Redundancy, reserves, information sharing and infrastructure investment have different costs and time horizons. Comparing these choices explicitly can help prevent an attractive but poorly targeted response.
