imperfect information

The perfection of information is an important notion in game theory when considering sequential and simultaneous games. It is a key concept when analysing the possibility of punishment strategies in collusion agreements:

• imperfect information – appears when decisions have to be made simultaneously, and players need to balance all possible outcomes when making a decision. A good example of imperfect information games is a card game where each player’s card are hidden from the rest of the players. In Games with imperfect information – winning strategies don’t use all the available information