1 Monopoly One Producer Significant entry barriers Market demand = firm demand

2 Monopoly MR MC P Q D Q P

3 Monopoly Profit ATC MR MC P Q D Q P Monopoly profit

4 Price Discrimination P Q D P1 P2 P3

5 Natural Monopoly P Q D MC

6 Secondary Monopoly P Q MC Automobile Crash Parts

7 Monopoly Behavior Standard Oil Trust and Refining Standard Oil Trust and Refining Cut throat competition Cut throat competition Rebates Rebates Remington and the Typewriter Remington and the Typewriter Keyboard Keyboard Xerox and Plain Paper Copying Xerox and Plain Paper Copying Tying Tying GM and the Trolley GM and the Trolley Substitute elimination Substitute elimination