index

The growth of index investing has not made markets less efficient
incomerevealed.com

IN THE autumn of 1974 Paul Samuelson, a prominent economist and Nobel prizewinner, issued a challenge. Most stockpickers should go out of business, he argued. Even the best of them could not always beat the market average. But there was a snag. “If this advice to drop dead is good advice, it is obviously not […]

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Our Big Mac index shows fundamentals now matter more in currency markets
incomerevealed.com

IT IS usually considered quaint to predict foreign-exchange movements by reference to whether currencies are dear or cheap. Metrics such as The Economist’s Big Mac index, a lighthearted guide to exchange rates, hint at how far currency values are out of whack. But they are often driven further out of kilter by capital flows, by […]

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The Big Mac index
incomerevealed.com

THIRTY-ONE years ago, The Economist created the Big Mac index as a way of gauging how different currencies stacked up against the dollar. The index is based on the theory of purchasing-power parity, the idea that in the long run, exchange rates should adjust so that the price of an identical basket of tradable goods […]

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