Answer:
routine; great recession; narrowly; quantitative easing; housing
Explanation:
An open market operation is sale and purchase of government securities to control the money supply and interest rates and to ensure regulation of the supply of money in the economy. Such money can be provided as loan to businesses and consumers.
Most open market operations are routine and are aimed at maintaining the economic status quo. During the great recession, however, narrowly targeted open market operations were used to encourage economic growth. These actions were dubbed "quantitative easing." The first round of this practice focused primarily on the housing market.