Full article on economist.com
Some years ago, when Gulliver was a wide-eyed reporter on his first business trip, he sidled up to a bureau de change in London’s Heathrow Airport to buy some foreign currency. His nervous excitement quickly turned to dismay when the teller gouged 12% from the transaction, justifying the theft by tapping on a display-screen of ruinous exchange rates. Today, Gulliver knows better than to buy foreign currency at an airport. But many do not: in 2016 Heathrow raked in £50m ($68m) by renting retail space to bureaux de change. New technology and startups could soon change that...
