Keynesian economics argues that demand drives supply and that healthy economies spend or invest more than they save. To create jobs and boost consumer buying power during a recession, Keynes held that governments should increase spending, even if it means going into debt.
Keynesian economics is a variety of macroeconomic theories and models of how aggregate demand significantly affects economic output and inflation. From a Keynesian perspective, aggregate demand does not necessarily match the economy's capacity. Instead, it is influenced by many factors that affect production, employment, and inflation.
Keynesian economists generally argue that aggregate demand is volatile and unstable, and as a result, market economies often experience inefficient macroeconomic consequences. They further argue that these economic fluctuations can be mitigated through coordinated economic policies between governments and central banks. Fiscal and monetary policy measures, in particular, help stabilize economic output, inflation, and unemployment throughout the business cycle. Keynesian economists generally advocate a regulated market economy. Although primarily the private sector, it plays an active role in government intervention during recessions.
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