This article studies the importance of corporate boards through a learning model in which capital markets learn about incoming directors’ quality. The model’s predictions are tested across a large sample of director appointments. Estimates show that governance-related uncertainty accounts for about 10% of stock return volatility when a new director joins. The learning framework provides a theoretically grounded approach to identify when directors matter more to investors. The analysis shows that director importance varies with board composition and firm attributes: Investors perceive directors as more important on boards with greater generational diversity, in smaller firms, and firms with higher knowledge capital.

We study the effects of state-level Paid Family Leave (PFL) laws on US firms across a broad panel of private and public companies. Following PFL adoption, female employee turnover declines, labor productivity increases, and treated firms experience significant improvements in operating performance. These effects are stronger in regions with a larger supply of childbearing-age female labor, among R&D-intensive firms and firms with high intangible capital, consistent with a mechanism in which PFL reduces job separation expectations and encourages investment in firm-specific human capital. Our findings suggest that PFL can generate tangible firm-level benefits by enhancing workforce stability and productivity.