GDP is the sum of the value of all goods and services produced and sold. It is often used to judge economic strength by combining the value of what is being produced with the quantity.

Reviewed by Michael J Boyle Fact checked by Suzanne Kvilhaug The gross domestic product (GDP) of a nation is an estimate of the total value of all the goods and services it produces during a ...

Yet GDP seems an impossibly complex thing to measure in a modern economy. How do countries calculate it?

The annual growth rate of real gross domestic product (GDP) is the broadest indicator of economic activity -- and the most closely watched. Learn how it's presented in official releases and how to ...

With inflation rates rising around the globe, knowing how to calculate the rate using the GDP deflator is a useful tool. Inflation itself is the percentage change in price level f ...