European trade unions are among the most influential and powerful institutions within Western economies, in many cases cooperating with the government and employers' associations in socio-economic decision-making processes. Consequently they also play an important role in the formulation of...

We shed light on an understudied group: retirees in unions. Using representative individual-level data of 19 European countries, we find that the share of retirees in unions and the union density of retirees increased between 2008 and 2020. Econometric analyses indicate that on average retired...