In the absence of closed-shops and discriminatory wage policies, union membership can be explained by the existence of social norms. We develop a theoretical frame-work which nests various social custom models. Using micro data for Germany and Great Britain, we find evidence for social custom...

In Germany, trade unions and employers associations play a role not only in wage determination but also in social affairs and labour law. While the majority of firms are organized in employers associations, less than one quarter of employees are members of a trade union. Both social partners...

In an open-shop model of trade union membership with heterogeneity in risk attitudes, a worker's relative risk aversion can affect the decision to join a trade union. Furthermore, a shift in risk attitudes can alter collective bargaining outcomes. Using German panel data (GSOEP) and three novel...

In an open-shop model of trade union membership with heterogeneity in risk attitudes, a worker's relative risk aversion can affect the decision to join a trade union. Furthermore, a shift in risk attitudes can alter collective bargaining outcomes. Using German panel data (GSOEP) and three novel...

In Germany, there is no trade union membership wage premium, while the membership fee amounts to 1% of the gross wage. Therefore, prima facie, there are strong incentives to free-ride on the benefits of trade unionism. We establish empirical evidence for a private gain from trade union...