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Experts and quacks
Author(s) -
Sandford Jeremy A.
Publication year - 2010
Publication title -
the rand journal of economics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.687
H-Index - 108
eISSN - 1756-2171
pISSN - 0741-6261
DOI - 10.1111/j.1756-2171.2009.00096.x
Subject(s) - incentive , value (mathematics) , business , quackery , marketing , microeconomics , economics , opportunity cost , industrial organization , computer science , medicine , alternative medicine , pathology , machine learning
What happens when “type” is endogenous in a reputational setting? Here, customers cannot tell “experts” from imitative “quacks,” but gain information through repeated interaction. Firm incentives to invest in expertise vary nonmonotonically in how tolerant customers are of bad outcomes; more tolerant customers are both more forgiving, making expertise less necessary, and longer tenured, increasing the value of retaining them. In equilibrium, the proportion of expert firms is bounded away from one; some quacks are necessary to keep incentives of experts in line. The fraction of experts is decreasing in customers' switching costs and the relative cost of expertise over quackery.