We examine the bipartite graphs of German corporate boards in 1993, 1999 and 2005, and identify cores of directors who are highly central in the entire network while being densely connected among themselves. Germany's corporate governance has experienced significant changes during this time, and...

Previous research on firm performance does not adequately account for the interrelatedness of a firm's professional connections, political ties, and family business-group affiliation. Many widely-cited findings may therefore be subject to confounding bias. To address this problem, we adopt a...

We study the effects on corporate loan rates of an unexpected change in the Italian legislation which forbade interlocking directorates between banks. Exploiting multiple firm-bank relationships to fully account for all unobserved heterogeneity, we find that prohibiting interlocks decreased the...