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Hollis Johnson

The Big Mac Index: A delicious indicator

Posted on
Big Mac or Big Bang
The Big Mac Index compares McDonald’s Big Mac price among countries.

 

The Big Mac Index was written by Pam Woodall in The Economist in 1986. The index, also known as Burgernomics, is published every spring by The Economist. According to the magazine, it serves as a lighthearted guide to whether currencies are at their correct level while seeking to make exchange-rate theory a bit more digestible. The index is based on the theory of purchasing power parity (PPP).

To calculate PPP, the price of a basket of goods or services is compared between two countries; however, to calculate The Big Mac Index, our basket consists of only one item: The McDonalds Big Mac, sold almost all over the world. The price of a Big Mac in terms of a nation’s currency is divided by the price of the same burger in another country’s currency. The result is then compared according to the actual exchange rate:

If the resulting number is lower than the actual exchange rate, then the first currency is undervalued, and vice versa; if it is higher, then the first currency is overvalued.

 

Hollis Johnson
Hollis Johnson

 

Nevertheless, The Big Mac Index has some flaws as well. For instance, the size and ingredients of a Big Mac may vary from one country to another. Moreover, the price of the Big Mac is determined by the McDonalds, and this can affect the index to a great extent. Although such loopholes are associated with this approach, the PPP estimates by this index are very similar to the results calculated by more scientific tools.

Other similar indices have been introduced as well. For example, the iPod Index, compares the price of a certain model of iPod between two countries.

The Big Mac itself was first introduced in the United States in 1969.

 


Also Watch

https://www.youtube.com/watch?v=DXEv5T4O0Ak

 

https://www.youtube.com/watch?v=cc5CdU6CYvQ

 

https://www.youtube.com/watch?v=H7h5ZCWI9r0

 


Further Reading

The Big Mac Index: Interactive currency-comparison tool

What is the Big Mac Index? McDonald’s as a Purchasing Power Parity Index

Big Mac index – global prices for a Big Mac in January 2018, by country (in U.S. dollars)

 

 

Related posts:

Friedrich August Von Hayek
Kenneth Arrow
Inequality
Interest rates
Keynesian School of Economic Thought

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