When is reputation bad?

Jeffrey Ely, Drew Fudenberg*, David Levine

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapter


In traditional reputation models, the ability to build a reputation is good for the long-run player. In [Ely, 1., Valimaki, 1., 2003. Bad reputation. NAJ Econ. 4, 2; http://www.najecon.org/v4.htm. Quart. J. Econ. 118 (2003) 785-814], Ely and Valimaki give an example in which reputation is unambiguously bad. This paper characterizes a class of games in which that insight holds. The key to bad reputation is that participation is optional for the short-run players, and that every action of the long-run player that makes the short-run players want to participate has a chance of being interpreted as a signal that the long-run player is “bad.” We allow a broad set of commitment types, allowing many types, including the “Stackelberg type” used to prove positive results on reputation. Although reputation need not be bad if the probability of the Stackelberg type is too high, the relative probability of the Stackelberg type can be high when all commitment types are unlikely.

Original languageEnglish (US)
Title of host publicationA Long-Run Collaboration on Long-Run Games
PublisherWorld Scientific Publishing Co.
Number of pages30
ISBN (Electronic)9789812818478
ISBN (Print)9812818464, 9789812818461
StatePublished - Jan 1 2008


  • Commitment
  • Game theory
  • Reputation
  • Stackelberg

ASJC Scopus subject areas

  • Mathematics(all)


Dive into the research topics of 'When is reputation bad?'. Together they form a unique fingerprint.

Cite this