A Mixed Economy: The Role of the Market. The United States is said to have a mixed economy because privately owned businesses and government both play important roles. ... When economic forces are unfettered, Americans believe, supply and demand determine the prices of goods and services.
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The American Colonization Society (ACS) was formed in 1817 to send free African-Americans to Africa as an alternative to emancipation in the United States.
It wasn't so much the Civil War, but the expansion of the United States that led to the Civil War, that brought about the Second Industrial Revolution, since this expansion brought a need for massive amounts of railroad materials.