Credence goods are characterized by informational asymmetries between sellers and consumers that invite fraudulent behavior by sellers. This paper presents the results of a natural field experiment on taxi rides in Athens, Greece, set up to measure different types of fraud and to examine the...

We present the results of a pre-registered natural field experiment designed to uncover a sophisticated form of discrimination against an immigrant minority in a market for credence goods. For this purpose, we introduce two markups: (i) the credence goods markup defined as the difference between...

Credence goods markets with their asymmetric information between buyers and sellers are prone to large inefficiencies. In theory, poorly informed consumers can protect themselves from maltreatment through sellers by asking for second opinions from other sellers. Yet, empirical evidence whether...