Supply chains are the circulatory system of the global economy, providing access to the things we need to support commerce and sustain life. Despite their vital importance, most people have traditionally had little appreciation of the complexity of supply chains, and only noticed them when they were disrupted during the pandemic. Even prior to COVID-19, their vulnerability and environmental impact had become major sources of concern. The responsibility for much of the physical movement, handling, and storage of products has been outsourced to specialized logistics service providers, whose operations are growing ever more complex.This briefing is based on the views of a wide rang...