Any inflation above 3 percent, which has not been the case since 1993, would be deleterious to economic functioning.
Inflation below 3 % is called “low”; inflation below 2% is called “very low”.
A time of very low inflation, such as now, would be a good time to prime the pump; that is, spend money by the central government, expecting recirculation to promote economic growth.
You realize, from the graph, that inflation of one per cent, which is now, is really really low. A really, really good opportunity for a Green New Deal.
As the Shadow Government likes to call it.