While it's easy to try to throw out predictions, it will be difficult to tell exactly how much more easing will help the economy. "I think [earlier easing] was quite effective in keeping rates lower for longer," says Canally. "But what would the economy have done had they not done that, we'll never know."
Danielle Kurtzleben is a business and economics reporter for U.S. News & World Report. Connect with her on Twitter at @titonka or via E-mail at email@example.com.