The Value of Bad Ratings : An Experiment on the Impact of Distortions in Reputation Systems

We study the robustness of reputation management systems against distortions in rating behavior. In a laboratory trust experiment with reputation management, we mimic a positive bias by exclusively offering the option to rate positively or to give no rating. As predicted by theoretical considerations, this bias leads to significantly less trust than a system that additionally offers a negative rating option. A system relying solely on negative ratings does not have such an adverse effect. This highlights the importance of negative ratings for the effectiveness of reputation systems

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Year of publication:	2020
Authors:	Keser, Claudia ; Späth, Maximilian
Publisher:	[S.l.] : SSRN
Subject:	Reputation \| Experiment \| Bewertung \| Evaluation \| Theorie \| Theory

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