Perfect information

Perfect information is a concept in game theory and economics that describes a situation where all players in a game or all participants in a market have knowledge of all relevant information in the system. This is different than complete information, which implies common knowledge of each agent's utility functions, payoffs, strategies and "types". A system with perfect information may or may not have complete information.

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Source: Wikipedia · Image: Wikimedia Commons · CC BY-SA 3.0

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