What is locational marginal cost in the context of supply chain risk?

• A. The cost impact of a disruption at a specific location on the overall supply chain, including transport delays, alternative routing, and inventory costs, often spatially modeled.
• B. The average cost of goods sold across regions.
• C. The marginal cost of labor in a given site.
• D. A theoretical construct with no practical application.

Answer: (A)

Locational marginal cost in supply chain risk is the incremental cost the whole network faces when a disruption happens at a specific location. It captures how that problem ripples through the system—adding transport delays, triggering the need for alternative routing, increasing inventory carrying or expedited shipping costs, and potentially creating bottlenecks upstream or downstream. Because these impacts depend on where the disruption occurs within the network, the cost is often modeled with a spatial perspective to reflect geography, routes, facilities, and market connections. This concept helps quantify the financial consequence of location-specific risk and informs where to focus contingency plans and resilience investments. Other options describe average regional costs, labor costs, or ideas with little practical application, and don’t reflect the network-wide ripple effects that locational marginal cost specifically measures.