Information in Tullock contests

A. Aiche, E. Einy, O. Haimanko, D. Moreno, A. Sela, B. Shitovitz

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


In Tullock contests in which the common value of the prize is uncertain and the elasticity of the marginal cost of effort is increasing (decreasing), the effect of changes of players’ information on the equilibrium efforts and payoffs is unambiguous: if information is symmetric, then expected effort decreases (increases) as players become better informed; in two-player contests, the expected effort of a player with information advantage is less (greater) than that of his opponent. Sharper results arise when the cost of effort is linear: Under symmetric information, expected effort and payoff are invariant to changes in the players’ information. In two-player contests, both players exert the same expected effort regardless of their information, although expected effort is smaller when one player has information advantage than when both players have the same information. Interestingly, the expected payoff of a player with information advantage is larger than that of his opponent, even though he wins the prize less frequently.

Original languageEnglish
Pages (from-to)303-323
Number of pages21
JournalTheory and Decision
Issue number3-4
StatePublished - 1 May 2019


  • Asymmetric information
  • Common value
  • Tullock contests

ASJC Scopus subject areas

  • General Decision Sciences
  • Developmental and Educational Psychology
  • Arts and Humanities (miscellaneous)
  • Applied Psychology
  • General Social Sciences
  • Economics, Econometrics and Finance (all)
  • Computer Science Applications


Dive into the research topics of 'Information in Tullock contests'. Together they form a unique fingerprint.

Cite this