Law Commons^™

Anti-Herding Regulation, Ian Ayres, Joshua Mitts

Faculty Scholarship

In some contexts, an individual’s choice to mimic the behavior of others, to join the herd, can increase systemic risk and retard the production of information. Herding can thus produce negative externalities. And in such situations, individuals by definition have insufficient incentives to separate from the herd. But the traditional regulatory response to externality problems is to impose across-the-board mandates. Command-and-control regulation tends to displace one pooling equilibrium by moving behavior to a new, mandated pool. Mortgage regulators, for example, might respond to an unregulated equilibrium where most homeowners start with 2% down by imposing a requirement that causes most …