Here's our summary of key economic events overnight that affect New Zealand, with news of more jobs pain. But first in the US, at the virtual Jackson Hole symposium this year the Fed boss has signaled a significant shift in its approach to managing inflation, as it tries to do more to aid the US economy's recovery. Essentially, it is a shift to lower rates for longer. They will now target an "average" of 2% inflation, rather than making 2% a fixed goal, giving it more flexibility to focus on its jobs mandate. And they do have a real problem there. Last ...