The petrodollar economy refers to the global financial system that is based on the trade of oil in U.S. dollars. This system emerged in the early 1970s when major oil-exporting countries, particularly in the Middle East, agreed to price and sell their oil exclusively in dollars, creating a strong demand for the currency. As a result, countries that purchase oil must hold reserves in dollars, which solidifies the U.S. dollar's status as the world's primary reserve currency and gives the United States significant economic leverage.
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