Suppose that the distribution of sales within an industry is

Suppose that the distribution of sales within an industry is as shown in the table.

What is the four-firm concentration ratio for this industry? ____%?

(Enter your response as a whole number.)

Firm

Share of Total Market Sales

A

16

B

15

C

14

D

12

E

9

F

7

G

5

H

4

All Other

18

Total

100%

Solution

The four firm concentration ration for this industry will be (16+15+14+12)= 57%

Which is derived from the sum of first four industry.