Which One of the Following Is Not a Possible Barrier

question 149

Multiple Choice

Which one of the following is not a possible barrier to entry high enough to keep competing firms out of a monopoly industry?

• A)The monopoly firm has control of a key resource necessary to produce a good.
• B)There are important network externalities in supplying a good or service.
• C)large economies of scale that result in a natural monopoly
• D)a high concentration ratio

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