We study the role of reciprocity in markets for credence goods where expert-sellers have more information about the severity of a problem faced by a consumer. We employ a standard experimental credence goods market to introduce the possibility for consumers to gift expert-sellers before they...

Many important markets, such as those for health care or repair services, are characterized by pronounced informational asymmetries between buyers and sellers – because the buyer cannot identify the quality of the product that fits her needs best, while the seller can do so by performing a...