The European Central Bank is set to keep interest rates unchanged for a fourth meeting with new economic projections likely to point to solid growth and policymakers confident inflation won’t stray excessively from their target. Speaking on Bloomberg Television, Barclays economist Silvia Ardagna says “it’s going to be a very challenged meeting in terms of communication” for President Christine Lagarde. “We don’t expect her to take any commitment on the future. But definitely we think the tone is