(2018), “Trade as an engine of growth: Prospects and lessons for Europe”, speech at the NBRM  High Level International Conference on Monetary Policy and Asset Management, Skopje, 16 February. 14 See also Cœuré, B.
There may be sufficient nominal rigidity around zero that the adjustment to a temporary period of unexpectedly low inflation is more awkward in the second case. If true, this is a reason not to aim at inflation of only 1 per cent to start with – but that's another story.