- Monopoly (only one seller) - Oligopoly (few sellers of goods) - Monopolistic competition (many sellers with highly differentiated product) - Monopsony (only one buyer of a product).
Senior Lifeguard Casey Jean C.J. Parker is a character in the American television show Baywatch. She was portrayed by actress and model Pamela Anderson in the tv series and later by model Kelly Rohrbach in the film version.
Courtney Thorne-Smith (born November 8, 1967) is an American actress. She is best known for her roles as Alison Parker on Melrose Place, Georgia Thomas on Ally McBeal, Cheryl in According to Jim, and her recurring role on Two and a Half Men as Lyndsey McElroy.