United States of America

The United States is a developed country and has the world’s largest national economy, with an estimated GDP in 2013 of $16.7 trillion – 23% of global nominal GDP and 19% at purchasing-power parity. The economy is fuelled by an abundance of natural resources and the world’s highest worker productivity, with per capita GDP being the world’s sixth-highest. While the U.S. economy is considered post-industrial, it continues to be one of the world’s largest manufacturers. The U.S. has the highest mean and second-highest median household income in the OECD as well as the highest average wage, though it has the fourth most unequal income distribution among OECD nations with roughly 16% of the population living in poverty. The country accounts for 39% of global military spending, being the world’s foremost economic and military power, a prominent political and cultural force, and a leader in scientific research and technological innovation.