Money symbolizes everything that people value. Paper bills were originally I.O.U. notes to other people, and these banknotes became official when people realized paper was a lot easier to carry around than a bunch of coins! Paper bills represent the money a government has. If more bills are printed than there is actual money, inflation occurs. The economy is the distribution of goods and services within a country. There are many systems that countries can use to run their economies, including capitalism, communism, and socialism. The United States is a capitalist country. Learn all this and more in All About Money: The History, Culture, and Meaning of Modern Finance.