1. How does a generic drug differ from its brand-name, previously patented equivalent? Explain why the price of a brand-name drug typically declines when an equivalent generic drug becomes available? Explain how that drop in price affects allocative efficiency.
2. How does the demand curve faced by a purely monopolistic seller differ from that confronting a purely competitive firm? Why does it differ? Of what significance is the difference? Why is the pure monopolist's demand curve not perfectly inelastic?
3. U.S. pharmaceutical companies charge different prices for prescription drugs to buyers in different nations, depending on elasticity of demand and government-imposed price ceilings. Explain why these companies, for profit reasons, oppose laws allowing re-importation of drugs to the United States.