TITFORTAT

Tit for tat

Tit for tat is an English saying meaning "equivalent retaliation". It is also a highly effective strategy in game theory for the iterated prisoner's dilemma. The strategy was first introduced by Anatol Rapoport in Robert Axelrod's two tournaments, held around 1980. Notably, it was both the simplest strategy and the most successful.

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tit for tat

Noun

  1. equivalent retribution, an eye for an eye, returning exactly what you get.
    If you hit me, I'll hit you back; tit for tat.
  2. hat.

Adjective

  1. Having the characteristic of returning bad for bad.
    Unfortunately, many adults retain a tit-for-tat attitude, but in a more refined way than the simple, childish shove for shove.


The above text is a snippet from Wiktionary: tit for tat
and as such is available under the Creative Commons Attribution/Share-Alike License.

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