Question

Assume that a local bank sells two services – checking accounts and ATM card services. Mr. Done That is willing to pay $8 a month for the bank to service his checking account, and $10 a month for unlimited use of his ATM card. Ms. Been There wants to pay only $5 for a checking account, but will pay $15 for unlimited use of her ATM card. To keep this example simple, assume that the bank can provide each of this services at zero marginal cost

Answers

Anonymous
Once we have made these assumptions, what is the question?

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