Reputation in the Long-Run
42 Pages Posted: 18 Jan 2018
Date Written: November 28, 2017
Feedback scores in an online marketplace have risen sharply over time, leading to substantial top-censoring. Some of the increase is explained by more satisfied raters, but at least 35-45% is attributable to raters applying lower standards. We show that this “reputation inflation” is the equilibrium outcome of a model in which (a) inferences made by future trading partners determine what constitutes “bad” feedback and (b) giving “bad” feedback is costly to raters. The introduction of a new feedback system confirms our model predictions: raters were candid when feedback was private, but when feedback suddenly became public, reputations began inflating.
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