Gross Domestic Product (GDP)

What Is Gross Domestic Product (GDP)?

GDP stands for Gross Domestic Product. It measures the total value of goods and services produced within a country over a set period, usually reported quarterly in the United States. The Bureau of Economic Analysis (BEA) officially calculates and publishes the figures. Under the expenditure approach, GDP is the sum of four components: consumption, investment, government spending, and net exports. Consumer spending (personal consumption) typically makes up the largest share of U.S. GDP. Economists distinguish real GDP, which is adjusted for inflation, from nominal GDP, which is not. Because it captures the size and direction of overall output, GDP is the single most-watched gauge of an economy's health and a coincident indicator of the business cycle.

Why It Matters

GDP matters because it is the broadest single measure of economic activity, so policymakers, investors, and analysts track its growth rate to judge whether the economy is expanding or contracting. A rising real GDP signals growth, while sustained declines can accompany a recession, though no single number defines one. During the Q2 2020 pandemic shock, U.S. GDP contracted at a roughly 30%-plus annualized rate, the sharpest on record, illustrating how dramatically output can swing. GDP is also classified as a coincident indicator, meaning it moves roughly in step with the broader economy rather than ahead of it. Because it is released only quarterly and revised over time, analysts pair it with faster monthly data such as employment and prices to read conditions in real time.