What drives the impact of women directors on firm performance? Evidence from intellectual capital efficiency of US listed firms

Purpose The purpose of this paper is to study whether the presence of women directors on the corporate board influences financial performance (FP). To examine the underlying causal mechanism, the authors modeled firm-level intellectual capital efficiency (ICE) in the relationshipbetween board gender diversity (BGD) and FP. Design/methodology/approach Using a sample of 5,879 US firms, a structural model of BGD, IC and FP is conceptualized by accounting for the endogeneity issues and alternative measures of the key variables in the empirical framework. In the model, the percentage of women directors is taken as BGD measures and value-added intellectual coefficient as an IC performance measure, considering governance and corporate performance measures. Findings The authors find a significant impact of BGD on FP. In particular, the results suggest: BGD is linked to IC; the influence of board gender diversity on the FP is indirect; and ICE fully mediates the relationship between BGD and FP. Originality/value To the best of the author's knowledge, no study has empirically investigated whether the firm-level IC performance explains the influence of BGD on FP. Drawing on the resource-based view and organizational learning theory of the firm, the authors empirically modeled the relationship between BGD and FP through a mediation mechanism of firm-level ICE to fill the void in the literature.