A Risk-Based Approach for Identifying Key Economic and Infrastructure Systems


Address correspondence to Kash Barker, School of Industrial Engineering, University of Oklahoma, 202 West Boyd Street, Room 124, Norman, OK 73019, USA; tel: 405-325-3721; fax: 405-325-7555; kashbarker@ou.edu.


This article introduces approaches for identifying key interdependent infrastructure sectors based on the inventory dynamic inoperability input-output model, which integrates an inventory model and a risk-based interdependency model. An identification of such key sectors narrows a policymaker's focus on sectors providing most impact and receiving most impact from inventory-caused delays in inoperability resulting from disruptive events. A case study illustrates the practical insights of the key sector approaches derived from a value of workforce-centered production inoperability from Bureau of Economic Analysis data.