Fed officials say no exact formula for new monetary policy strategy

A day after rolling out a new strategy for U.S. monetary policy, Federal Reserve officials on Friday diverged over what it might mean in practice, saying there is no exact science to how they will apply their updated "framework."While the aim is to allow higher inflation and, as a side-effect, additional job growth over time, Fed policymakers differed over just how much more inflation they will tolerate or what metrics they'll be looking at - a complication for investors or households setting ex