“…This would also have implications for econometric methodologies as trend-cycle decomposition would need to feature correlated demand and supply shocks. For an econometric review of the issue with correlated demand and supply shocks, see the work byMorley et al (2003).108 For evidence of wage rigidities in the EU and the euro area, see, for example, Marotzke, P.,Anderton, R., Bairrao, A., Berson, C. and Tóth, P. (2020); Anderton, R., Hantzsche, A., Savsek, S.; Tóth, M. (2017).…”