The aim of this paper is to study the empirical phenomenon of rating bubbles, i.e. clustering on extremely positive values in e-commerce platforms and rating web sites. By means of a field experiment that exogenously manipulates prior ratings for a hotel in an important Italian tourism...

In der Londoner U-Bahn warnen die Worte "Mind the gap!" vor der Lücke zwischen Bahn und Bahnsteigkante. Auch die Diskrepanz zwischen Sozialstruktur und Semantik kann zum Stolperstein werden. Wenn Semantiken ihre Passgenauigkeit verlieren und den gesellschaftlichen Diskurs mit Kategorien...

Most real world situations that are susceptible to herding are also characterized by direct payoff externalities. Yet, the bulk of the theoretical and experimental literature on herding has focused on pure informational externalities. In this paper we experi- mentally investigate the effects of...