Q. a. Verify of all the prices also quantities calculated in the Talk about.
b. Now suppose that intermediaries come from a competitive marketplace with an equilibrium price of $8 every unit for their services, that is, any buyer or seller who wants an intermediary's services must pay $8 for them. Illustrate what is the maximum every unit that sellers are willing to pay intermediaries if hiring them saves buyers $8 in transaction costs?
c. Change if buyers pay $8 every unit to the intermediary but sellers offer to rebate part of that expense to buyers?