Corporate Governance in the Presence of Active and Passive Delegated Investment

Institutional ownership has grown tremendously over recent decades, rising to more than 70 percent of U.S. public firms. The composition of institutional ownership has also changed, with a remarkable growth in passive funds: The fraction of equity mutual fund assets held by passive funds has increased six-fold, from around 5 percent to 30 percent. The Big Three index fund managers alone now cast about 25 percent of votes in S&P 500 firms. How active and passive asset managers monitor and engage with their portfolio companies has thus become of utmost importance for the governance and performance of public firms.

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