Does gender diversity in supervisory boards affect gender diversity in management boards in Germany? An empirical analysis

Social aspects like gender diversity in the boardroom are becoming increasingly relevant and are a popular topic of public debate in the context of gender equality in business. However, there is little clarity about the potential spill-over effects of gender diversity. Both theory and empirical results have led to ambiguous conclusions with respect to the effect of gender diversity in the supervisory board on gender diversity in the management board. In addition, it is not clear whether the German gender quota legislation positively affects this relationship. This study analyses whether gender diversity in the supervisory board supports the gender diversity of the management board, and whether this relationship is affected by the gender quota legislation, focusing on the unique case of Germany. To cope with endogeneity concerns, this study employs a cross-lagged panel model with fixed effects using maximum likelihood structural equation modelling. The results of the analysis of the impact of the number of female supervisory board members on the number of female management board members do not support the view of positive spill-over effects of gender diversity in the environment of the German two-tier corporate governance system. Furthermore, this study finds no evidence of an effect of the German gender quota on this relationship. JEL Codes G38, M12, M14, M51