If you like to stay on top of business and economic news, chances are you’re familiar with the Economist’s Big Mac Index: what in its own words is “a fun guide to whether currencies are at their “correct” level.” Simply put, if a Big Mac costs 44% less in China than it does in the U.S., this suggests that the yuan is 44% undervalued against the dollar. Likewise, if a Big Mac is 23% more expensive in Canada than in the U.S., that shows the Canadian dollar is 23% overvalued. The infogrpahic below illustrates the latest Big Mac Index update, released on July 28, 2011.

What The Price of a Big Mac Reveals About Purchasing Power Around the World

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Published July 28, 2011 Updated: August 7, 2014
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Dhairya•  July 29, 2011
Well isn't it obvious, the country with high interest rate regime will cause its currency to depreciate faster.
Tom•  August 6, 2011
Goes without saying, but this is monumentally dumb and displays zero understanding of currency valuation.