In a class of informed principal problems with common values often used in applications we define a particular mechanism which we call the assured allocation. It is always undominated, i.e. efficient among the different types of the principal. We show it is a perfect Bayesian equilibrium...

This paper examines the occurrence and fragility of information cascades in laboratory experiments. One group of low informed subjects make predictions in sequence. In a matched pairs design, another set of high informed subjects observe the decisions of the first group and make predictions....