Some 85% of all global trade by volume, and 55% by value, moves by sea. How would the world adapt if any of the major shipping routes were blocked? We built a model to find out https://www.economist.com/interactive/briefing/2026/03/27/the-nightmare-scenario-for-global-trade?taid=69ca4e572c3aed000146e2dc&utm_campaign=trueanthem&utm_medium=social&utm_source=twitter