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Journal of Political Economy Vol. 102 No. 6 1994

Large Shareholder Activism, Risk Sharing, and Financial Market Equilibrium

Anat R. Admati; Paul Pfleiderer; Josef Zechner

Abstract

We develop a model in which a large investor has access to a costly monitoring technology affecting securities' expected payoffs. Allocations of shares are determined through trading among risk-averse investors. Despite the free-rider problem associated with monitoring, risk-sharing considerations lead to equilibria in which monitoring takes place. Under certain conditions the equilibrium allocation is Pareto efficient and all agents hold the market portfolio of risky assets independent of the specific monitoring technology. Otherwise distortions in risk sharing may occur, and monitoring activities that reduce the expected payoff on the market portfolio may be undertaken.

Volume
102
Issue
6
Pages
1097-1130
Sources
bibtex:phds-export.bib

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