The document discusses recession, its causes and impacts. It defines recession as a period of reduced economic activity lasting more than a few months, as measured by declines in GDP, income, employment, production and sales. Common causes are listed as currency/energy crises, underconsumption, overproduction and fiscal policy issues. The Great Recession of 2007-2009 is summarized as the largest global economic decline since WWII, caused by issues like the housing market crisis and excessive private debt levels. Impacts included credit crunches, reduced savings, unemployment and falling sales/profits. Government responses to recession through fiscal and monetary policies aim to stimulate aggregate demand and recovery.