With credence goods consumers cannot judge actual quality neither before purchase - ex ante - nor after purchase - ex post -. Trust has to replace own examination and verification. Applying Choquet-Expected Utility theory, a general model of credence goods is developed which takes the problem of...

We examine insurance markets with two types of customers: those who regret suboptimal decisions and those who don.t. In this setting, we characterize the equilibria under hidden information about the type of customers and hidden action. We show that both pooling and separating equilibria can...

Qualitätsungewißheit erfaßt das Problem asymmetrischer Information bei Vertrauenseigenschaften und geht über Qualitätsunsicherheit hinaus, die nur bei Erfahrungseigenschaften auftritt. Informationsökonomische Modelle können Qualitätsungewißheit bisher nur unzureichend analysieren. Zur...