The Value of a Zero Sum Game
A\B | \[B_1\] | \[B_2\] | \[B_3\] | \[B_4\] |
\[A_1\] | 2 | 3 | -3 | 2 |
\[A_2\] | 1 | 3 | 5 | 2 |
\[A_3\] | 9 | 5 | 8 | 10 |
Player A thinks that if he picks strategy
\[A_1\]
, the worst that can happen is that he loses 3. If he chooses strategy \[A_2\]
, the worst that can happen that he is paid 1, and if he plays strategy \[A_3\]
, the worst that can happen is that he is paid 5. Player A will choose strategy \[A_3\]
since he is guaranteed the highest payoff for this strategy. The Maximin of the rows is 5.Player A will always choose strategy
\[A_3\]
, and player B will always choose strategy \[B_2\]
. The value of the game is 5.