Trade Turmoil Spawns A.I. Used to Better Track Flows Through Ports

Chinese and U.S. exports slumped last month while the European Union’s rose, according to a new measure for global trade by developed by German researchers.

The Kiel Institute for the World Economy’s gauge is the latest in a string indexes that aim to track more closely the pandemic-induced shipping snarls and container logjams that have stymied goods trade along busy routes like Shanghai to Los Angeles.