What has caused wages and unit labour costs to accelerate in the euro zone?

W ages and unit labour costs in the euro zone accelerated in 2018 . This did not bring about an increase in inflation, probably because of the competitiveness constraints faced by companies. What caused wages and unit labour costs to accelerate in the euro zone in 2018? Declining unemployment and hiring difficulties? Yes, they contributed 0.25 percentage point (at an annual rate); The trend in labour productivity? Yes, a slowdown in productivity contributed 0.7 percentage point at an annual rate; The price indexation of wages? Yes, it contributed 0.25 percentage point (at an annual rate).