Welcome on Board? Appointment Dynamics of Women as Directors
研究了2002至2019年欧洲上市公司董事会中女性任命动态，发现董事会中女性比例越高，新任命女性的概率越低，且存在替代效应（女性离任后更可能任命女性），但无溢出效应。
Abstract Increasing the participation of women in top-level corporate boards is high on the agenda of policy-makers. Yet, we know little about director appointment dynamics and the drivers and impediments of women appointments. This study builds on organizational and group-level behavior theories and empirically investigates how ex-ante board structures and gender-specific board dynamics impact the representation of women on corporate boards. We study boards of listed firms in Europe between 2002 and 2019 and find a declining appointment probability for every additional woman, i.e., the share of women already on the board negatively predicts the likelihood of additional women appointments. Further, we find evidence of a replacement effect, i.e., the likelihood of a woman being appointed as director is significantly larger when a woman, compared to when a man, leaves the board. We do not find spillover effects from non-executive to executive boards. These results are robust to econometric model specifications that address potential endogeneity concerns using matching and instrumental variables. Our results confirm that board director appointments are gender specific and suggest that demand-side factors such as explicit and implicit norms drive women appointments up to a certain threshold.