Share of World GDP 1969-2009

Deu dia 19/11 no blog do Prof. Mark Perry!


U.S. Share of World GDP Remarkably Constant

Somewhat surprisingly, the Economic Research Service of the U.S. Department of Agriculture has some great international historical macroeconomic datasets. According to its website:

The International Macroeconomic Data Set provides data from 1969 through 2020 for real (adjusted for inflation) gross domestic product (GDP), population, real exchange rates, and other variables for the 190 countries and 34 regions that are most important for U.S. agricultural trade.
The chart above shows the annual shares of real world GDP for four geographical regions (European Union 15, Asia/Oceania, Latin America and the combined share of Africa and the Middle East) compared to the U.S. share of world GDP between 1969 and 2009 (data here). What might be surprising is that the U.S. share of world GDP has been relatively constant for the last 40 years, and is actually slightly higher in 2009 (26.7%) that it was in 1975 (26.3%). It’s also interesting that the EU15’s share of world GDP has declined from about 36% of world output in 1969 to only 27% in 2009. Further, despite having a large share of the world’s oil reserves, the Middle East’s share of global output has increased from only 2.23% in 1969 to 3.16% in 2009 (graph shows Middle East combined with Africa).

Bottom Line: World GDP (real) doubled between 1969 and 1990, and has increased by another 60% since then, so that world output in 2009 is more than three times greater than in 1969. We might mistakenly assume that the significant economic growth over the last 40 years in China, India and Brazil has somehow come “at the expense of economic growth in the U.S.” (based on the “fixed pie fallacy”) but the data suggest otherwise. Because of advances in technology, innovation, and significant improvements in U.S. productivity, America’s share of total world output has remained remarkably constant at a little more than 25%, despite the significant increases in output around the world, especially in Asia.

Update: The chart above represents about 91% of the world economy and does not include Canada and the European countries not included in the EU-15.


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