Which of the following would prevent "free entry" into a market?
rev: 04_09_2018
Multiple Choice
Open trade
Patents
Opportunity costs
Externalities
Patents
Free entry into the market is allowed when there are no potential barriers. These barriers include legal barriers such as trademark copyright patents as well as economies of scale and ownership over key resource. Opportunity cost externalities and open trade are not entry barriers because they do not prevent entry of new firms or help in maintaining market power of existing firms. However patent provides Monopoly power to the firm by restricting others firms producing the product for at least 20 years
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