13th Edition
Roger A. Arnold
ISBN: 9781337617406




13th Edition
Roger A. Arnold
ISBN: 9781337617406
Textbook Problem

Total industry sales are $105 million. The top four firms account for sales of $10 million, $9 million, $8 million, and $5 million, respectively. What is the four-firm concentration ratio?

To determine

Determine four-firm concentration ratio.


The four-firm concentration ratio can be calculated using the formula as follows:

Four-firm concentration ratio=large 4 firms sharesTotal industrial sales        (1)

The total industrial sales are $105 million. The accounts of sale of firm 1 is $10 million, firm 2 is $9 million, firm 3 is $8 million and firm 4 is $5 million respectively

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