Valutazione metodologica di resilienza e viability delle reti di fornitura

This dissertation investigates the challenges that supply chains have faced in recent years due to sudden external changes, and proposes conceptualization and methods to better face them, that is to increase supply chain resilience and supply chain viability. Given the topic, most of the gaps we investigate do not come merely from literature, where existing gaps often have been left unfilled for a good reason, but from the confrontation of recent news bringing new supply challenges with the existing frameworks and methods from literature. In this dissertation we first investigate disruption propagation in different types of SCs under various strategic and tactical choices. We then examine how to leverage the available Time to Survive to reconfigure product assemblies in factories (thus reducing Time to Adapt) and propose an exact optimization method. The method is set in companies that use ETO and MTO products in the nowadays relevant environment of ever-changing tariffs. The findings are then generalized to understand how super-disruptions and supply chain shocks impact price to customers, margins, and trades among countries, both in import and in export. It is worth noting that super-disruptions and shocks are characterized by longer duration, both immediate and delayed effects, that often cross different industries. The dissertation concludes by integrating the previous findings into an approach for effectively managing supply chains during periods of perturbances, and a conceptualization of the findings and measures used to plan and check supply chain resilience, and their trend.