Tutorial Home Lessons from the Prisoner's Dilemma

7: Post-match analysis (3)

Tit for Tat co-operates on its first move and from then on copies the other player's previous move. Once you discovered that, you probably realised that you gain nothing by defecting (until the last move). In this way, Tit for Tat trained you to co-operate for mutual benefit, unlike Massive Retaliatory Strike.

Once again, the highest-scoring strategy is to co-operate until the final move and then defect. If the game were going on indefinitely, then it would be in your interest to always co-operate.

We could go on considering improved strategies for playing Iterated Prisoner's Dilemma, but I want to stop now and draw a few conclusions.

Questions to think about

More depth on the Prisoner's Dilemma is available by consulting the recommended reading.

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