Suppose That There Are Two Industries,A and B

question 6

Multiple Choice

Suppose that there are two industries,A and B. There are five firms in industry A with sales at $5 million, $2 million, $1 million, $1 million, and $1 million, respectively. There are four firms in industry B with equal sales of $2.5 million for each firm. The four-firm concentration ratio for industry B is:

• A) 0.9.
• B) 1.0.
• C) 0.8.
• D) 0.7.

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Definitions:

Interest Rate

The cost of borrowing money or the reward for saving, usually expressed as a percentage of the principal amount per period.

Economic Profit

The return flowing to those who provide the economy with the economic resource of entrepreneurial ability; the total revenue of a firm less its economic costs (which include both explicit costs and implicit costs); also called “pure profit” and “above-normal profit.”

X-Inefficiency

The difference between actual output and the maximum possible output that could be achieved with the same input of resources, due to inefficiencies within a firm.

Dynamic Change

The process of constant, sometimes unpredictable change within systems or environments, affecting economic, social, or technological aspects over time.