In economics, a depression is a sustained, long-term downturn in economic activity in one or more economies. It is a more severe downturn than a recession, which is seen by economists as part of a normal business cycle.
Considered a rare and extreme form of recession, a depression is characterized by its length, and by abnormally large increases in unemployment, falls in the availability of credit— often due to some kind of banking/financial crisis, shrinking output and investment, large number of bankruptcies—including sovereign debt defaults, significantly reduced amounts of trade and commerce—especially international, as well as highly volatile relative currency value fluctuations—most often due to devaluations. Price deflation, financial crises and bank failures are also common elements of a depression.