Farukh, Razi; Kerkhof, Anna; Loebbing, Jonas - 2020
bad. In a market setting with multiple consumers per expert, a cross-consumer externality arises: one consumer's payment … raises the expert's income, which makes the non-selfish part of preferences more important and thereby induces the expert to … provides a novel rationale for the wide-spread use of price regulation and licensing in real-world markets for expert services. …