One topic of research that keeps popping up is the question of what the central bank objective function should be. In simpler terms, what is the target of the central bank? (At present, most central banks have an inflation target, possibly with secondary objectives.) This is a preoccupation of many "conventional" economists - those in the neoclassical tradition, as well as those that are somewhat out of the mainstream (e.g., Market Monetarists are pushing for a Nominal Gross Domestic Product Level Target (NGDPLT). If one sticks to the usual Modern Monetary Theory ((MMT)) story, this