Solution :
c. MC=MR is the profit maximizing equilibrium point. The price rise beyond that is likely to raise the total revenue. But the total cost might increase equally or more then that to nullify or decrease the profit.
d. (i). The demand increase implies that the AR (demand) curve shifts rightwards. This will increase the equilibrium price.
(ii). Change in demand does not affect the total cost.
a. Monopoly might continue to produce in short earn even if its AR < AC. It continues to do so until shut down point. It refers that production continued until average revenue (AR) is greater than equal to the average variable cost (AVC). The monopoly is a market with a single seller.
This market's average revenue (AR) demand curve is above its marginal curve . The curves are downward sloping, illustrating price demand inverse relationship.
Equilibrium quantity : when the marginal revenue = marginal cost
Equilibrium price : equilibrium quantity corresponding price at AR (demand ) curve.
