We estimate the impact of union density on wages using Portuguese matched employer-employee-contract data, extending Gelbach's (2016) omitted variable bias decomposition procedure to obtain the contribution of worker, firm, and job-title heterogeneity to the union wage premium. The principal...

Using panel data from 1985 to 2019, we provide the first comprehensive investigation of the relationship between trade union membership and job satisfaction in Germany. Cross-sectional analyses reveal a negative correlation, while fixed effects estimates indicate an insignificant relationship....