The currency in Macroland is called econs. In Macroland, the public holds 2,000 econs in currency; commercial bank reserves are 300 econs; and the desired reserve-to-deposit ratio of the commercial banks is 10%. If the Central Bank of Macroland prints an additional 200 econs and uses this new currency to buy government bonds from the public, the money supply in Macroland will , assuming that the public does not wish to change the amount of currency it holds from before.

Suppose there are three types of consumers who attend concerts at your university’s performing arts center: students, staff, and faculty. each of these groups has a different willingness to pay for tickets; within each group, willingness to pay is identical. there is a fixed cost of $1,000 to put on a concert, but there are essentially no variable costs. for each concert: i. there are 140 students willing to pay $20. (ii) there are 200 staff members willing to pay $35. (iii) there are 100 faculty members willing to pay $50. a) if the performing arts center can charge only one price, what price should it charge? what are profits at this price? b) if the performing arts center can price discriminate and charge two prices, one for students and another for faculty/staff, what are its profits? c) if the performing arts center can perfectly price discriminate and charge students, staff, and faculty three separate prices, what are its profits?