monopolist has two sets of customers. The inverse demand for Group 1 is described by Pa = 200 - Qa. For Group 2, the inverse demand is Pb = 100 Qb. The monopolist faces constant marginal cost of 40.

1.What is the profit-maximizing uniform price if both groups are to be charged the same price ? At this price, how much is sold to members of Group 1 and how much to members of Group 2? What is the firms aggregate profit without price discrimination?

2.What is the profit-maximizing price policy if the monopolist charges a separate price for each set of consumers? What is the aggregate profit earned with price discrimination?

3.Suppose that a monopolist adopts a two-part pricing scheme. What is the profit-maximizing membership charge and price (quantity-independent fee and per unit usage charge)? What is the aggregate profit earned under this regime?

4.Suppose now that a monopolist adopts a block-pricing scheme. What is the profit-maximizing total charge for each consumer type (bundle total charge and quantity in a package)? What is the aggregate profit earned under this regime?