Fed Seen Starting QE3 While Extending Rate Pledge to 2015

``Two rounds of bond purchases totaling $2.3 trillion have failed to breathe life into the labor market, which Bernanke said last month is a "grave concern." That means policy makers will probably announce a new open-ended plan tied to a sustained improvement in the economy rather than specify an amount of purchases and an end-date, according to 32 of the 73 economists in the survey. Twenty-two expect a fixed duration and amount. ''