Copyrights and patents are examples of barriers to entry that give firms monopoly pricing powers.
举一反三
- Any brand can create barriers of entry to make it hard for other firms to enter the market.
- The theory of limit pricing suggests that firms may charge higher short-run prices to restrict future entry。（ ）
- Which of the following correctly describes an oligopoly? A: A single firm has all of the market power. B: Several firms have market power and there is free entry and exit. C: Several firms have market power and there are barriers to entry. D: Several firms take the price as given and there is free entry and exit.
- Which of the following statements is true about patents and copyrights?
- Patents,<br/>trademarks and copyrights are all issued by the PTO.( )