Harvard Business School professor Willy Shih joins WIRED to answer the internet's burning questions about the global supply chain. How do tariffs work? Why have egg prices become so high? Is the world ...

Opinions expressed are those of the author. Globally, retailers move vast amounts of products through a complex web of supply chain networks and transportation systems to get them to consumers.

Unlike in 2018 when importers rerouted production through Vietnam and Mexico to avoid China tariffs, importers have few ...