[Using eight thousand public companies, we study the impact of the Sarbanes-Oxley Act (SOX) of 2002 and other contemporary reforms on directors and boards, guided by their impact on the supply and demand for directors. SOX increased directors' workload and risk (reducing the supply), and increased demand by mandating that firms have more outside directors. We find both broad-based changes and cross-sectional changes (by firm size). Board committees meet more often post-SOX and Director and Officer (D&O) insurance premiums have doubled. Directors post-SOX are more likely to be lawyers/consultants, financial experts, and retired executives, and less likely to be current executives. Post-SOX boards are larger and more independent. Finally, we find significant increases in director pay and overall director costs, particularly among smaller firms.]

This article has two related tasks. First, we review the articles published in this Special Issue on Corporate Control, Mergers, and Acquisitions. These articles provide new evidence on several aspects of corporate control and governance including the value and performance effects of various ownership groups, the impact of internal governance structures, the effects of regulatory changes on specific industries and evidence on bidding strategies in takeovers. This analysis leads us to our second task – to examine the evolution of corporate control research, broadly defined. Our analysis shows a movement in research from mergers and acquisitions to a broader analysis of corporate governance, especially internal governance features. We suggest that there is a trend toward an increase in the relative importance of internal governance compared to discipline from the market from corporate control. This trend reflects an important change over the past several decades in the means through which the market disciplines corporate behavior.

Using 8,000 public companies we study the impact of the Sarbanes-Oxley Act (SOX) and other contemporary reforms on directors and boards, guided by their impact on the supply and demand for directors. SOX increased director workload and risk (reducing the supply), and increased demand by mandating that firms have more outside directors. We find both broad-based changes and cross-sectional changes (by firm size). Board committees meet more often post SOX and Director and Officer (D&O) insurance premiums doubled. Directors post SOX are more likely to be lawyers/consultants, financial experts and retired executives, and less likely to be current executives. Post-SOX boards are larger and more independent. Finally, we find significant increases in director pay and overall director costs, particularly among smaller firms.?