What Is GDP?
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GDP is like a price tag on a country's output, and it measures the size of the economy. Find out what it means.
The Big Mac Index is an informal way to gauge the values of currencies around the world against the U.S. dollar.
GDP stands for gross domestic product and is the measure of the total economic output of the goods and services of a country.
Purchasing Power Parity (PPP) compares different countries' currencies through a market "basket of goods" approach. Two currencies are in PPP when a market basket of goods (taking into account the exchange rate) is priced the same in both countries.
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