GDP-adjusted price of a Big Mac, in dollarsĪdjusted index, relative to the US dollarĪdjusted index, relative to the British poundĪdjusted index, relative to the Japanese yenĪdjusted index, relative to the Chinese yuan The exception is the variables suffixed '_raw' or '_adjusted'-these appear (with suffixes) in the 'full' file but without suffixes in the respective ('raw' or 'adjusted') files. This codebook largely applies to all three files. big-mac-adjusted-index.csv contains values for the “adjusted” indexĮach file also contains the source data used to calculate it.big-mac-raw-index.csv contains values for the “raw” index.

Big Mac prices are from McDonald’s directly and from reporting around the world exchange rates are from Thomson Reuters (until January 2022) and Refinitiv Datastream (July 2022 on) GDP and population data used to calculate the euro area averages are from Eurostat and GDP per person data are from the IMF World Economic Outlook reports. The previously published versions of both indices are available in the releases. The full history of the GDP-adjusted series will now be updated whenever the IMF’s historical GDP series are updated, which means the GDP series for a given year may change slightly over time as the IMF refines its measurements. Instead of using the IMF's calculation of purchasing-power parity, we adjust the GDP per person by the difference in each country's Big Mac prices. We also changed how we calculate the GDP-adjusted index.

In July 2022 we updated the Big Mac index to use a McDonalds-provided price for the United States (previously, we averaged the price from four major US cities). To download the data, go to the latest release, where you can download the index data in a CSV or Excel, or the code behind it. This repository contains the data behind The Economist’s Big Mac index, and code that shows how we calculate it.

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