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 influence of passengers’ presumed information and income on the extent of … fraud. Results reveal that taxi drivers cheat passengers in systematic ways: Passengers with inferior information about …

inefficiencies, such as under- and overtreatment or market break-down. We study in a large experiment with 936 participants the …