Colon polyp facts. 1  Colon polyps are growths on the inner lining of the colon and are very common. 2  Colon polyps are important because they may be, or may become malignant (cancerous).  Changes in the genetic material of cells lining the colon are the cause of polyps.
DEFINITION of 'Consumer Price Index-CPI'. A measure that examines the weighted average of prices of a basket of consumer goods and services, such as transportation, food and medical care. The CPI is calculated by taking price changes for each item in the predetermined basket of goods and averaging them; the goods are weighted according to their importance.
NEW YORK (CNNMoney.com) -- A key index of prices paid by consumers showed the largest year-over-year decline since April 1950, primarily due to sinking energy prices, the government said Wednesday. The Consumer Price Index, the Labor Department's key measure of inflation, has fallen 1.3% over the past year.