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Does the model of perfect competition apply equally to consumers as it does to firms?

Abbreviated Question: 
Does the model of perfect competition apply equally to consumers as it does to firms?
Answer: 

Yes, economic theory traditionally has emphasized the role of the entry and exit of firms in dividing market surplus. In microeconomics, free entry and exit of firms is an important part of the assumption of free competition. For macroeconomists, modeling entry and exit of firms is important because it is directly related to the creation or destruction of jobs.