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donderdag 22 oktober 2026

AlgemeenNRC

What the Big Mac index reveals about a global currency beef

Locked in a vault near Paris, ensconced in three bell jars, sits a small cylinder of platinum alloy, forged in London in 1879. Known as Le Grand K, it long served as the definitive standard for measuring the kilogram. There is no universal standard for measuring the monetary heft or purchasing power of currencies. But The Economist has a favourite candidate. It weighs up to 240g. It is ensconced in a cardboard box. And you can find it under two Golden Arches.  Our version of Le Grand K is the McDonald’s Big Mac.

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Glass Lewis is a trusted ally to more than 1,300 investors globally who use our corporate governance research, custom policy recommendations, engagement services and tools, and industry-leading proxy vote management solution to help drive value across...