dollars using the exchange rate at that point in time. Twice a year the Economist converts the average national price of a Big Mac into U.S. It does this by measuring each currency against a common standard – the Big Mac hamburger sold by McDonald’s restaurants all over the world. The Big Mac index, published The Economist, is a novel way of measuring whether the market exchange rates for different countries’ currencies are overvalued or undervalued. Concurrently the cost of a Big Mac was 5.65 dollars in the U.S., and 5.02 U.S. dollars, Switzerland has the most expensive Big Macs in the world, according to the July 2021 Big Mac index.