Scale, specialization and low-cost focus

We're in Santa’s grotto – sort of - a Chinese city that some call the Christmas capital of the world.

With 75,000 traders, across 50,000 stores, Yiwu offers the world’s largest wholesale market across a labyrinth of arcades.

But at a time of growing trade tensions with the US, who’s actually buying the tinsel this year?

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Presenter: Ed Butler Producer: David Cann Additional production: Victoriya Holland

(Picture: Crowds of people walking through Yiwu wholesale market. Credit: BBC/Wang Xiqing)