A Hidden Reason to Buy These 3 Stocks (The Motley Fool)

The Motley Fool - Twenty-five years ago, British newsweekly The Economist invented "the Big Mac index." It was meant to be a fun, easy way to measure purchasing-power parity by comparing the price of a McDonald's Big Mac in different countries. It turned out to be not only fun and easy, but also quite accurate in predicting long-run movements in currency exchange rates.

Source: http://us.rd.yahoo.com/dailynews/rss/personalfinance/*http://news.yahoo.com/s/fool/20110928/bs_fool_fool/rx152787

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