“…Our analysis departs from existing literature in a number of ways. First, whereas past studies have focused on share class unifications in a single country (Amoako‐Adu and Smith, ; Kunz, ; Hauser and Lauterbach, ; Bigelli et al ., ; Dittmann and Ulbricht, ; Smart et al ., ), we use a comprehensive sample of dual‐class firms in seven Western European countries that also covers untraded share classes. Second, unlike studies that have analyzed the relation between the institutional environment and share structure decisions (e.g., Smith and Amoako‐Adu, ; Hoffmann‐Burchardi, ; Hauser and Lauterbach, ), we consider how changes in the institutional environment have affected the attractiveness of dual‐class shares by shaping the value of control available to the controlling shareholders; that is, we investigate voluntary unification decisions.…”