Perfectly Credible

Track 5: Perfectly Credible*

Being perfectly credible, being perfectly credible[1]

I need to be, I need to be

I need to be perfectly credible, I need to be perfectly credible

I need to be, I need to be, I need to be, I need to be

Walking back along the tree, subgame perfect strategy

I just wanna, I just wanna, I just wanna

I wonderfully rational, wonderfully rational,

I wonderfully rational, wonderfully rational

I need to be perfectly credible, I need to be perfectly credible,

I need to be, I need to be, I need to be, I need to be

Walking back along the tree, subgame perfect strategy[2]

Walking back along the tree, subgame perfect strategy

I just wanna, I just wanna, I just wanna

I wonderfully rational, wonderfully rational

Be perfectly credible, be perfectly credible, be perfectly.

Voices: Marco Marini, Elisa Pezzuto. Guitars: David Pieralisi, Marco Marini, Bass: David Pieralisi. Drum: Valter Sacripanti,

Production: Valter Sacripanti. Mastering: Fabrizio De Carolis.

[1] In a game the credibility of a players’ strategy is relevant and can be defined precisely. A subgame perfect Nash equilibrium is a refinement of a Nash equilibrium used in dynamic games of perfect information. A strategy profile is a subgame perfect equilibrium if it represents a Nash equilibrium in every subgame (or part) of the original game. Roughly speaking a subgame is a part of the entire game that can be considered independently as a game in miniature of the whole game. This reinforces the equilibrium, that can be, for this, considered as a more rational and credible play.

[2] Backward induction is the process of determining a sequence of optimal choices by reasoning from the endpoint of a problem or situation back along the game-tree. Backward induction involves examining the final point in a series of decisions and identifying the optimal process or action required to arrive at that point. In game theory, backward induction is a method used to compute subgame perfect equilibria in sequential games where the information is perfect, namely players know what all other players have been playing so far.

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