In a union-management negotiation, the following are the percentages of annual wage increase for various combination of union and management strategies:
Management
M1 M2 M3
U1 1 3 3
U2 4 2 2
Union U3 3 2 3
U4 3 4 1
U5 2 1 2
Determine the best mixed strategies for the union and management respectively and the expected percentage of annual wage increase (i.e., value of the game) for the union.