The Ties that Bind or Those That Tear Us Apart? Co-CEO Constellations and ESG Performance in Family Firms
研究了家族企业采用联席CEO结构对ESG绩效的负面影响，发现家族成员与非家族成员或不同代际成员共同担任CEO会因认知多样性降低ESG绩效，但若其中一人兼任董事会主席则可缓解甚至逆转这一负面效应。
Abstract While the prevailing perspective on executive leadership has emphasized the effectiveness of a unified command structure, family firms frequently adopt shared leadership structures, such as dyads, triads, or larger co-CEO constellations. Given the widespread use of such structures in family firms, it becomes imperative to understand how family involvement in the firm shapes the dynamics of co-CEO constellations and their implications for firm outcomes. Drawing upon the socioemotional wealth (SEW) perspective, we propose that the salience of extended SEW concerns increases the costs associated with a shared leadership structure. These elevated costs, in turn, result in adverse environmental, social, and governance (ESG) outcomes. Our empirical analysis, based on panel data from 76 Italian firms listed on the Milan Stock Exchange during 2003–2020, suggests that family firms employing a co-CEO structure tend to exhibit lower ESG performance, while a positive relationship emerges in nonfamily firms. We theorize and find empirical support that the negative effect for family firms stems from family-induced cognitive diversity, manifested via the inclusion of both family and nonfamily members or family members from different generations in the co-CEO constellation. Importantly, we identify a key mitigating factor: when one of the co-CEOs also holds the position of the board chair, the negative impact of the co-CEO structure on ESG performance is mitigated and even turns positive. These findings advance our understanding of how family involvement in the shared leadership structure shapes a firm’s ethical orientation, having important implications for the governance of family firms.