Diversity of Board Interlocks and the Impact on Technological Exploration: A Longitudinal Study

Scholars have given increased attention to organizational networks as an important component of technological innovation. Although a significant body of research has examined the implications of organizational networks on knowledge diffusion, researchers know little about the impacts that diverse network interlocks have on corporate innovation outputs. To address this gap in the literature, this article draws upon insights from organizational learning and social network theory and argues that interlocked networks affect corporate innovation. Further, interlocks differ in terms of both the heterogeneity of tied‐to firms—ties created through shared board directors—and the directors who create these ties. Accordingly, this study proposes that more diverse interlocks will have a greater impact on corporate technological exploration. To test this proposal, data from multiple sources were analyzed, including historical records of board appointments and data on technological innovations from U.S. public companies. Empirical results from generalized estimating equations suggest that the industrial diversity of interlocked firms increases the likelihood of technological exploration. Moreover, interlocks with R&D‐intensive firms are more important for technological exploration than those created by firms that do not invest heavily in R&D. There is no empirical evidence demonstrating that the ratio of interlocks created by directors with output‐oriented experience enhances technological exploration. Overall, this research reveals that diversity of leader‐created board interlocks can be an important mechanism for fostering corporate entrepreneurial activities such as technological exploration.