Social partners (trade unions and employers' associations) shape labour institutions and economic and social outcomes in many countries. In this paper, we argue that, when examining social partners' representativeness, it is important to consider both affiliation and dissimilarity measures. The...

While trade unions have been studied in detail, there is virtually no economics research on employer associations (EAs), trade unions' counterparts in many countries. However, besides conducting collective bargaining, EAs perform several other activities that can in uence economic outcomes,...