During the recession of 2008-2009, and even after the recession ended, we saw the use of many monetary policy tools to stimulate the economy. Please find one article from an established source (newspapers, respected magazines, and so on), documenting monetary policy in action in action. Please explain exactly how (in the context of the aggregate expenditure model, and being as specific as possible) the policy is supposed to work to affect the economy. Please include a link to the article you are discussing.