Interactive currency-comparison tool : The Big Mac index | The Economist
▻http://www.economist.com/content/big-mac-index?fsrc=nlw|newe|1-27-2014|7650068|140529796|E
J’ai toujours trouvé cet indicateur zarbi. Je le référence pour le regarder de plus près un peu plus tard
THE Big Mac index was invented by The Economist in 1986 as a lighthearted guide to whether currencies are at their “correct” level. It is based on the theory of purchasing-power parity (PPP), the notion that in the long run exchange rates should move towards the rate that would equalise the prices of an identical basket of goods and services (in this case, a burger) in any two countries.
https://dl.dropbox.com/s/jn2p7zgop011smx/bigmacindex2014.png
For example, the average price of a Big Mac in America in January 2014 was $4.62; in China it was only $2.74 at market exchange rates. So the “raw” Big Mac index says that the yuan was undervalued by 41% at that time.