.Suppose that Wal-World and Tarbo are independently deciding whether to implement a new bar code technology or use the existing bar code. It is less costly for their suppliers to use one system and the following payoff matrix shows the profits per year for each company resulting from the interaction of their strategies.

Wal-World Wal-World Existing bar code earns $4 billion earns $1 billion technology Tarbo earns $3 Tarbo earns $2 billion billion Wal-World Wal-World New bar code earns $3 billion earns $2 billion technology Tarbo earns $1 Tarbo earns $4 billion billion