By Chris Dorrell Central bankers could be forgiven for feeling a sense of triumph at last week’s annual Jackson Hole jamboree. In most advanced economies, inflation has returned to the two per cent target without squashing economic growth. A couple of years ago, when inflation was in the double digits, this would have seemed nothing short of miraculous. Although economic conditions differ substantially on either side of the Atlantic, central banks are now about to embark on a (relatively) coordinated cutting cycle at or near full employment. There will be multiple debates over the next few mon…