What Is a Recession and Who Decides When One Starts?
The working definition, the committee that dates downturns, and why the official call comes months after the fact
The working definition, the committee that dates downturns, and why the official call comes months after the fact
What is a recession, and who declares it? In the United States, the National Bureau of Economic Research (NBER) defines a recession as a significant decline in economic activity that is spread across the economy and lasts more than a few months. The official call does not come from the White House, Congress, or the Federal Reserve. It comes from a committee inside a private research organization, and it usually arrives well after the downturn has begun.
What a Recession Actually Is
A Decline That Is Deep, Broad, and Lasting
The NBER definition has three ingredients packed into one sentence. The decline has to be significant, meaning large enough to matter. It has to be spread across the economy, meaning it shows up in many sectors rather than a single industry. And it has to last more than a few months, so a brief dip does not qualify. Depth, breadth, and duration are the three tests, and none of them is a precise numeric threshold.
The Two Quarters Rule of Thumb
News stories often describe a recession as two consecutive quarters of falling gross domestic product (GDP). The NBER pages reviewed for this article do not state that rule as its criterion, so it is better understood as a popular shorthand than as the official test.
Who Decides When a Recession Starts
A Private Committee, Not the Government
The dating of US business cycles is done by the Business Cycle Dating Committee of the NBER, a private research organization rather than a government agency. The committee identifies the months of the peak and the trough, and the quarter in which each turning point falls.
What the Committee Looks At
The committee does not rely on one headline statistic. According to the NBER, it examines broad measures of real activity, including real personal income excluding transfers, nonfarm payroll employment, employment from the household survey, real consumption, real sales across manufacturing and trade, and industrial production. In recent decades it has given the most weight to income and payroll employment. To date quarters, it also draws on GDP and gross domestic income (GDI).
Why the Official Call Comes Late
The Process Looks Backward
The committee works in hindsight. The NBER says it waits for months after a peak or a trough before making a determination, so that it can avoid large revisions to the underlying data. The pages reviewed do not give a fixed waiting period, so any promise of an exact delay would be a guess.
The 2020 Example
The most recent recession dated in the sources reviewed shows the lag clearly. On June 8, 2020, the NBER committee announced that economic activity peaked in February 2020. That peak ended an expansion of 128 months that had begun in June 2009, the longest since the NBER’s records begin in 1854. The previous record was 120 months, from March 1991 to March 2001. The announcement came roughly four months after the peak it was identifying.
The same episode shows why the definition is flexible. The NBER stated that the decline in employment and production was unprecedented in size and widespread across the economy, so it classified the episode as a recession even though it was shorter than earlier ones. The trough came in April 2020, which makes that contraction two months long.
Quick Self-Check
Think about the last time you heard that the economy was in a recession, or close to one. Was the claim based on a single number, such as GDP, or on a broader picture of jobs, income, and spending? If you cannot tell, ask which indicator the speaker was relying on. That one question separates a headline from an analysis.
How Long Recessions and Expansions Have Lasted
The NBER publishes a table of US business cycle expansions and contractions. Its averages show how the pattern has changed over time. For the period from 1945 to 2020, a contraction, measured from peak to trough, averaged 10.3 months, while an expansion, measured from trough to peak, averaged 64.2 months. The full cycle, from one peak to the next, averaged 75.0 months. Across the longer span from 1854 to 2020, contractions averaged 17.0 months and expansions 41.4 months.
The takeaway, according to the NBER’s own table, is that postwar recessions are shorter and expansions longer than in the full record since 1854. These are averages, though, and single episodes can sit far from them, as the two month contraction of 2020 and the 128 month expansion before it both show.
What This Means for You
A recession is not a feeling, a headline, or a government announcement. It is a significant decline in economic activity, spread across the economy and lasting more than a few months, and in the United States the official dating is done in hindsight by the NBER committee. Knowing this helps you read the news calmly: a claim that a recession has started may be an early opinion, while the committee’s call may arrive months later.
It also helps to remember that the dates in this article end with the 2020 episode in the sources reviewed, so check the NBER website for any later determination. If you are thinking about how the economy connects to work and skills, our pieces on equipping students with skills for the evolving job market and on fair wages and protection for gig economy workers are good next reads.
Frequently Asked Questions
Who officially declares a recession in the United States?
The Business Cycle Dating Committee of the NBER, a private research organization, identifies the peak and trough months. It is not a government body.
Are two quarters of falling GDP the official definition?
The NBER pages reviewed here do not name that rule as their criterion. The committee looks at a wider set of measures, including income, payroll employment, spending, and production.
How long after a recession starts does the NBER announce it?
The pages reviewed give no fixed delay, only that the committee waits months to avoid large data revisions. In 2020, the announcement came about four months after the February peak.
Can a short downturn still be a recession?
Yes. The NBER classified the two month contraction of 2020 as a recession because the fall in employment and production was unprecedented in size and widespread.
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Last reviewed: 2026-10-18
Sources consulted:
