Doxastic paradox and reputation effects in iterated games

  • Authors:
  • Robert C. Koons

  • Affiliations:
  • University of Texas at Austin

  • Venue:
  • TARK '92 Proceedings of the 4th conference on Theoretical aspects of reasoning about knowledge
  • Year:
  • 1992

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Abstract

The "chain-store paradox" of Reinhard Selten is one of a number of scenarios involving the finite repetition of a certain kind of sub-game about which a paradoxical conclusion can be derived. In each of these cases, a backward-induction argument is used to prove that it is futile to try to establish a reputation for cooperative or punitive behavior through appropriate action in the early stages of the game, despite the fact that nearly all agree that it is intuitively reasonable to do so. Selten believed that this is paradoxical in the weak sense: a surprising, unexpected result of game theory. In this paper, I argue that it is paradoxical in the strong sense: a logical antinomy of rational belief or subjective probability, analogous to the paradox of the Liar.