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Measurement of System Resilience: Application to Chemical Supply Chains

Within the context of infrastructure and economic systems analysis, we define resilience as follows: given the occurrence of a particular disruptive event, the resilience of a system to that event is the ability to efficiently reduce both the magnitude and duration of the deviation from targeted system performance levels. We propose a new methodology, originating from optimal control applications, for measuring system resilience. The approach is demonstrated through application to a national petrochemical supply chain model.