Board Expertise and Firm Profitability: The Moderating Roles of Product Market Competition and Institutional Quality

Abstract

This paper investigates the association between board expertise and firm profitability. Using an international sample of 42,623 firm-year observations from 2002 to 2021, we find that firms with greater industry and financial expertise on their boards exhibit significantly higher profitability. This finding suggests that board expertise function as an important internal governance mechanism through which firms strengthen managerial oversight, improve strategic decision-making, and ultimately create shareholder value. We further show that the effectiveness of board expertise depends on the external governance environment. Specifically, the profitability-enhancing effect of board expertise is more pronounced in competitive product markets, consistent with a complementary relationship between market discipline and board-level governance. Product market competition appears to enhance the effectiveness of skilled directors in monitoring management and making strategic decisions that create shareholder value. Conversely, the positive relationship between board expertise and firm profitability is less pronounced among firms operating in countries with stronger institutional quality, consistent with a substitution view whereby effective legal systems, regulatory frameworks, investor protection, and enforcement reduce the incremental governance benefits of skilled boards.