a. Draw a supply and demand digram to show what happens to price, quantity, consumer surplus, and producer surplus in the market for Ipads.
b. Ipads and laptops are substitutes. Use a supply and demand to show what happens to price, quantity, consumer surplus, and producer surplus in the market for laptops (after a technological advance has reduced the cost of making Ipads). Should laptop producers be happy or sad about the technological advance in IPads?