Take me out to the ballpark. It's nearly baseball time and baseball franchises are thinking about pricing their products. Assume a team sells three concessions: hotdogs, soda and nachos. For hotdogs, the average fan's MU for units 1, 2, and 3 is 150, 125, and 80 utils. For soda, MU for units 1, 2, and 3 is 130, 100 and 60. For nachos, it's 140, 120 and 100. The average fan spends $25 per night on concessions. Hotdogs cost $5, nachos $4 and sodas $3.
A) what is the composition of the average fan's spending?
B) how would this spending pattern change if hotdog prices rose to $5.25 and sodas fell to $2.50?