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English: USA annual GDP from 1910-60, in billions of constant 2005 dollars, with the years of the Great Depression (1929-1939) highlighted. Based on data from: Louis D. Johnston and Samuel H. Williamson, "What Was the U.S. GDP Then?"
The economic history of the United States spans the colonial era through the 21st century. The initial settlements depended on agriculture and hunting/trapping, later adding international trade, manufacturing, and finally, services, to the point where agriculture represented less than 2% of GDP .
The United States has a highly developed mixed economy. [40] [41] [42] It is the world's largest economy by nominal GDP and second largest by purchasing power parity (PPP). [43]As of 2024, it has the world's sixth highest nominal GDP per capita and eighth highest GDP per capita by PPP). [10]
GDP is a measure of both the economic production and income. The Economist reported in August 2014 that real (inflation-adjusted) GDP growth averaged about 1.8 percentage points faster under Democrats, from Truman through Obama's first term, which ended in January 2013. [2]
GDP deflator for year = Real GDP growth on an annual basis is the nominal GDP growth rate adjusted for inflation. It is usually expressed as a percentage. "GDP" may refer to "nominal" or "current" or "historical" GDP, to distinguish it from real GDP. Real GDP is sometimes called "constant" GDP because it is expressed in terms of constant prices.
To make it more meaningful for year-to-year comparisons, a nominal GDP may be multiplied by the ratio between the value of money in the year the GDP was measured and the value of money in a base year. For example, suppose a country's GDP in 1990 was $100 million and its GDP in 2000 was $300 million. Suppose also that inflation had halved the ...
Historically, the United States was consistently year after year the world's largest economy since the early twentieth century. However, the report from 2014 showed that for the very first time China overtook the United States as the largest economy in the world taking into account purchasing power parity (PPP). Indeed, the margin of power ...
The computation is (GDP2/ GDP1)^(4/N) -1, where: GDP2 is the GDP for the president's last full quarter in office; GDP1 is the GDP for the last full quarter of the previous president; and N is the number of quarters the president was in office.