Bikhchandani, Sushil; Hirshleifer, David; Welch, Ivo - Charles A. Dice Center for Research in Financial … - 2005
An information cascade occurs when it is optimal for an individual, having observed the actions and possibly payoffs of those ahead of him, to take the same action regardless of his own information. When there are informational cascades, society may reap only a modest fraction of the potential...