New Economy
Saturday, 7/4, 12:44 AM
The Big Mac Index: How a Burger Became a Test of the World's Currencies
- Since 1986, The Economist has used the price of a single hamburger — the McDonald's Big Mac — to gauge whether the world's currencies are overvalued or undervalued.
- It started as a joke, but the Big Mac Index has become a surprisingly useful, and genuinely instructive, lesson in how exchange rates work.