Navigating international waters: the board’s role in enhancing intellectual capital efficiency

Purpose Considering the growing global significance of intellectual capital, we explore the impact of foreign directors on the effectiveness of intellectual capital. Design/methodology/approach Using 21,352 firm-year observations of Chinese-listed firms, for 2006–2020, we employ a modified value-added intellectual coefficient model to evaluate intellectual capital efficiency. The author use ordinary least squares regression as the main method, with a variety of methods for endogeneity and ensure robustness, including the fixed-effects method, propensity score matching, Two-step system GMM and Heckman’s two-step model, as well as other techniques. Findings Our findings indicate that foreign board directors significantly increase aggregate intellectual capital and its components, including capital employed efficiency, human capital efficiency, structural capital efficiency, and relational capital efficiency. Further, foreign directors have more impact on the intellectual capital efficiency of non-state-owned versus state-owned enterprises. We also observe that the impact becomes significantly greater with the presence of three or more foreign directors. Our findings hold up to various measures of board internationalization and a battery of robustness tests. Practical implications The research results show that the foreign directors on boards are related to IC efficiency, and IC efficiency is crucial to enterprises' value creation and competitive advantage in the era of the knowledge economy. Our findings are useful for companies and governments that are interested in improving the performance of IC. Originality/value This study provides novel evidence by using the MVAIC model to investigate foreign directors on boards and their relationship with IC efficiency among Chinese companies, while most previous studies have linked IC efficiency to financial performance. The findings also suggest that the influence of nationality diversity differs concerning ownership structure and their threshold.