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Game Theory 8.2/10

Battle of the Sexes

A couple prefers being together but disagrees on the venue. Payoffs: both at Opera (2, 1), both at Football (1, 2), apart (0, 0). Besides the two pure equilibria, there is a mixed Nash equilibrium. With what probability does each player attend their own preferred venue in it? Express as a fraction.

Related problems & prerequisites

Worth solving first

Source: Standard coordination game of the game-theory literature, named and analysed in Luce and Raiffa, 'Games and Decisions' (1957). Statement written for AxiomIQ.