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In the 1970s the prices of most things Americans buy more than doubled. Such a general increase in prices is called inflation. Prices of selected goods may increase for reasons unrelated to inflation: the price of fresh lettuce may rise because unseasonably heavy ....

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.... of 1 to 5 percent each year. In the 1970s inflation increased until it reached as much as 13 percent a year in the United States. Many countries have suffered from inflation more than has the United States. Israel had inflation of more than 100 percent a year in the early 1980s, meaning that the cost of living more than doubled every year. In Argentina inflation was greater than 400 percent in 1975 and averaged more than 100 percent each year from 1976 to 1982. The most remarkable inflation in modern times was the German hyperinflation of 1923, when people went to the store with wheelbarrows full of money to buy a few groceries. A similar hype ....