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Living on less than a dollar a day

Tim Harford examines the 'dollar-a-day' poverty line. It's a common standard against which progress in tackling extreme global poverty is measured. But how useful a benchmark is it really?

Tim Harford assesses how global poverty is measured, as the World Bank releases the latest figures on the number of people living on less than a dollar a day.

What progress has been made, and how useful a benchmark is this global poverty line?

Producer: Ruth Alexander

(Image: A beggar and her child. Credit: AFP/Getty Images)

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10 minutes

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