"Is Half a Trillion Dollars of New Fed Easing Worth It?" or NO FREE LUNCH

"So, for the sake of discussion, I asked CNBC's top Fed-watcher if QE3 is presumed to be on, what might we expect the benefits to be of a half a trillion dollar package of additional quantitative easing?
According to guests and conference attendees that Liesman has spoken to, 0.2-0.3% of additional GDP growth and maybe a 0.1-0.2% reduction in the unemployment rate."

http://finance.yahoo.com/blogs/breakout/half-trillion-dollars-fed-easing-worth-183400897.html