This article studies the use of different distribution channels as an instrument of price discrimination in credence goods markets. In credence goods markets, where consumers do not know which quality of the good or service they need, price discrimination proceeds along the dimension of quality...

Theory predicts that efficiency prevails on credence goods markets if customers are able to verify which quality they receive from an expert seller. In a series of experiments with endogenous prices we observe that verifiability fails to result in efficient provision behaviour and leads to very...

Authorised users (insiders) are behind the majority of security incidents with high financial impacts. Because authorisation is the process of controlling users? access to resources, improving authorisation techniques may mitigate the insider threat. Current approaches to authorisation suffer...