To solve this problem, let us try to break down each scenario one by one. We must calculate the total earnings that the two companies receive for each scenario.
Scenario 1: Neither company advertise
Earning of PM Inc = $ 50 M
Earning of Brown Inc = $ 50 M
Total Earning = $ 100 M
Scenario 2: Both companies advertise
Earning of PM Inc = $ 40 M
Earning of Brown Inc = $ 40 M
Total Earning = $ 80 M
Scenario 3: One company advertise, let us say PM Inc is the company who advertise and Brown Inc does not
Earning of PM Inc = $ 60 M
Earning of Brown Inc = $ 30 M
Total Earning = $ 90 M
We can see that Scenario 1 has the largest total earnings of all scenarios. Therefore the best strategy is:
A. neither company will advertise