An economic recession
Official Recession Definition
During a recession, the economy struggles, people lose work, companies make fewer sales and the country's overall economic output declines. The point where the economy officially falls into a recession depends on a variety of factors.
In 1974, economist Julius Shiskin came up with a few rules of thumb to define a recession: The most popular was two consecutive quarters of declining GDP. A healthy economy expands over time, so two quarters in a row of contracting output suggests there are serious underlying problems, according to Shiskin. This definition of a recession became a common standard over the years.
The National Bureau of Economic Research (NBER) is generally recognized as the authority that defines the starting and ending dates of U.S. recessions. NBER has its own definition of what constitutes a recession, namely "a significant decline in economic activity spread across the economy, lasting more than a few months, normally visible in real GDP, real income, employment, industrial production, and wholesale-retail sales."
The NBER's definition is more flexible than Shiskin's rule for determining what is a recession. For example, the coronavirus could potentially create a W-shaped recession, where the economy falls one quarter, starts to grow, then drops again in the future. This would not be a recession by Shiskin's rules but could be under the NBER's definition.
What Causes Recessions?
There is more than one way for a recession to get started, from a sudden economic shock to fallout from uncontrolled inflation. These phenomena are some of the main drivers of a recession:
- A sudden economic shock: An economic shock is a surprise problem that creates serious financial damage. In the 1970s, OPEC cut off the supply of oil to the U.S. without warning, causing a recession, not to mention endless lines at gas stations. The coronavirus outbreak, which shut down economies worldwide, is a more recent example of a sudden economic shock.
- Excessive debt: When individuals or businesses take on too much debt, the cost of servicing the debt can grow to the point where they can't pay their bills. Growing debt defaults and bankruptcies then capsize the economy. The housing bubble in the mid-aughts that led to the Great Recession is a prime example of excessive debt causing a recession.
- Asset bubbles: When investing decisions are driven by emotion, bad economic outcomes aren't far behind. Investors can become too optimistic during a strong economy. Former Fed Chair Alan Greenspan famously referred to this tendency as "irrational exuberance," in describing the outsized gains in the stock market in the late 1990s. Irrational exuberance inflates stock market or real estate bubbles-and when the bubbles pop, panic selling can crash the market, causing a recession.
- Too much inflation: Inflation is the steady, upward trend in prices over time. Inflation isn't a bad thing per se, but excessive inflation is a dangerous phenomenon. Central banks control inflation by raising interest rates, and higher interest rates depress economic activity. Out-of-control inflation was an ongoing problem in the U.S. in the 1970s. To break the cycle, the Federal Reserve rapidly raised interest rates, which caused a recession.
- Too much deflation: While runaway inflation can create a recession, deflation can be even worse. Deflation is when prices decline over time, which causes wages to contract, which further depresses prices. When a deflationary feedback loop gets out of hand, people and business stop spending, which undermines the economy. Central banks and economists have few tools to fix the underlying problems that cause deflation. Japan's struggles with deflation throughout most of the 1990s caused a severe recession.
- Technological change: New inventions increase productivity and help the economy over the long term, but there can be short-term periods of adjustment to technological breakthroughs. In the 19th century, there were waves of labor-saving technological improvements. The Industrial Revolution made entire professions obsolete, sparking recessions and hard times. Today, some economists worry that AI and robots could cause recessions by eliminating whole categories of jobs.