An economic depression is a period of carried long-term economic downturn that is the result of lowered economic activity in one major or more national economies. Economic depression maybe related to one specific country were there is some economic crisis that has worsened but most often reflexes historically the American Great Depression and similar economic status that may be recognized as existing at some country, several countries or even in many countries. It is often understood in economics that economic crisis and the following recession that maybe named economic depression are part of economic cycles where slowdown of economy follows the economic growth and vice versa. It is a result of more severe economic problems or a downturn than the recession itself, which is a slowdown in economic activity over the course of the normal business cycle of growing economy.

Economic depressions maybe also characterized by their length or duration, and maybe showing increases in unemployment, larger increases in unemployment or even abnormally large levels of unemployment (as with for example some problems in Japan in incorporating digital economy, that such technological difficulties may be resulting in very large unemployment rates or lack of good social balance in employment among population, lesser revenues for businesses, or other economic difficulties, with having signs of financial crisis, that may also reflect on the work of banks, or may result in banking crisis (in various ways that may be for example unauthorized transformations of banks), and further the crisis in investment and credit; that further could reflect on innovation and new businesses investments lessening or even shrinking, or buyers dry up in recession and suppliers cut back on production and investment in technology, in financial crisis that may be more country defaults or debt problems, and further in feared businesses bankruptcies, and overall business slowdown. Other bad signs of economic depression could be significantly reduced amounts of trade and commerce (especially international trade), as well as in currency markets that maybe fluctuations or unexpected exchange rates with observed highly volatile currency value fluctuations (often due to relative currency devaluations). Other signs of depression are prices deflation, financial crises, stock market crash or even bank failures, or even specific behaviour of economic agents or population, that are also common or also non common elements of a depression that do not normally occur during a recession.