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A recession is a broad economic contraction that can be dated from a peak in activity to a trough. A depression is an informal term for an unusually severe and prolonged downturn; there is no agreed technical cutoff separating one from a recession. In the United States, the National Bureau of Economic Research (NBER) dates recessions, but it does not separately designate depressions.
Recession vs. depression at a glance
| Question | Recession | Depression |
|---|---|---|
| What does it mean? | A significant decline in economic activity spread across the economy. | A common descriptive term for an unusually severe, long-lasting downturn; usage varies. |
| Is there an official U.S. classification? | The NBER maintains a chronology of U.S. business-cycle peaks and troughs. | The NBER does not separately define or date depressions. |
| How is it identified? | The NBER considers the downturn’s depth, diffusion across the economy, and duration, using multiple indicators. | There is no agreed numerical or duration threshold. |
| Familiar example | Contractions dated in the NBER’s U.S. chronology. | The severe U.S. downturn of the 1930s, commonly called the Great Depression. |
What counts as a recession?
The NBER’s traditional definition is a significant decline in economic activity that is spread across the economy and lasts more than a few months. Its Business Cycle Dating Committee weighs three considerations together: depth, diffusion, and duration. These are not a mechanical checklist with fixed numerical cutoffs; a particularly deep and widespread decline can qualify even if it is brief. See the NBER’s explanation of its business-cycle dating procedure.
In the NBER chronology, a recession runs from a peak to a trough. The peak marks the end of an expansion and the beginning of the contraction; the trough marks the contraction’s end and the start of a new expansion. This is a change in direction, not a claim that every household, industry, or economic measure worsens throughout the entire period. Activity can also remain below its previous peak after the trough, even though an expansion has begun.
Do two negative GDP quarters mean there is a recession?
No. The familiar rule that a recession means two consecutive quarters of falling real gross domestic product (GDP) is shorthand, not the official U.S. designation. The Bureau of Economic Analysis (BEA) says that “the often-cited identification of a recession with two consecutive quarters of negative GDP growth is not an official designation” in its recession glossary.
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GDP still matters, but the NBER dates recessions monthly and considers several measures of activity, including employment, personal income, and industrial production, alongside quarterly GDP. As the NBER notes, the 2001 recession did not include two consecutive quarters of declining real GDP. Conversely, small GDP declines alone may not establish the significant, economy-wide contraction the NBER is looking for.
What makes a depression different?
“Depression” usually signals a downturn considered more severe and longer-lasting than a recession, sometimes with its breadth also emphasized. But there is no agreed technical boundary: no universal GDP drop, unemployment rate, or number of years turns a recession into a depression. The Federal Reserve Bank of St. Louis likewise explains that there is no agreed technical definition distinguishing the two in its educational resource on measuring the Great Depression.
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The NBER says that “the term depression is often used to refer to a particularly severe period of economic weakness,” but it does not classify depressions separately in its business-cycle chronology. The depth, diffusion, and duration framework helps explain how a downturn is evaluated as a recession; it is not a formula for declaring a depression.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Why the Great Depression is the standard example
The NBER dates the first contraction associated with the U.S. Great Depression from an August 1929 peak to a March 1933 trough. Its historical FAQ also records a second contraction, from May 1937 to June 1938. The earlier contraction is widely regarded as the worst in U.S. history.
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A 2008 NBER announcement, reporting a Bureau of Economic Analysis estimate, says real GDP fell 27 percent between 1929 and 1933. That figure describes the historical contraction; it is not a threshold that defines every depression. The dates and estimate appear in the NBER’s December 1, 2008 Business Cycle Dating Committee announcement.
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How to use the terms accurately
- Use recession for a broad contraction in economic activity, especially when referring to a dated U.S. business-cycle episode.
- Use depression as a descriptive label for an exceptionally severe and prolonged downturn, not as a classification with a universal numeric test.
- Do not treat two consecutive quarters of negative GDP growth as the NBER’s official test; it is one familiar shorthand, while the NBER considers a broader set of indicators.
- Distinguish a decline in activity from a low level of activity. A recession describes contraction from a peak; the economy may still be recovering after the trough while remaining below its former peak.
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