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A global recession is a recession that affects many countries around the world—that is, a period of global economic slowdown or declining economic output.
According to this definition, since World War II there were only four global recessions (in 1975, 1982, 1991 and 2009), all of them only lasting a year (although the 1991 recession would have lasted until 1993 if the IMF had used normal exchange rate weighted percapita real World GDP rather than the purchasing power parity weighted percapita real World GDP). The 2009 global recession, also known as the Great Recession, was by far the worst of the four postwar recessions, both in terms of the number of countries affected and the decline in real World GDP per capita.
Before April 2009, the IMF argued that a global annual real GDP growth rate of 3.0 percent or less was "equivalent to a global recession".Lall, Subir. "IMF Predicts Slower World Growth Amid Serious Market Crisis," International Monetary Fund, April 9, 2008. [1] By this measure, there were six global recessions since 1970: 1974–75,http://www.imf.org/external/pubs/ft/weo/2009/update/01/index.htm IMF Jan 2009 update 1984–85, 1990–93, 1996, 2008–09, and 2018–19.
Whereas a national recession is identified by two quarters of decline, defining a global recession is more difficult, because a Developing country is expected to have a higher GDP growth than a Developed country. According to the IMF, the real GDP growth of the emerging and developing countries is on an uptrend and that of advanced economies is on a downtrend since the late 1980s. The world growth is projected to slow from 5% in 2007 to 3.75% in 2008 and to just over 2% in 2009. Downward revisions in GDP growth vary across regions. Among the most affected are commodity exporters, and countries with acute external financing and Liquidity risk. If a global recession were to occur in its full magnitude, an estimated 100 million jobs would be lost around the world, with total lost capital hovering at US$120 trillion. Countries in East Asia (including China) have suffered smaller declines because their financial situations are more robust. They have benefited from falling commodity prices and they have initiated a shift toward macroeconomic policy easing.
The IMF estimates that global recessions occur over a cycle lasting between eight and ten years. During what the IMF terms the past three global recessions of the last three decades, global per capita output growth was zero or negative.
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