This Question 1 pt 12of5010complete This According to the ta
     This Question: 1 pt 12of50(10complete)  This According to the table at right, if the fourth and fifth largest firms in the industry merge, the four-firm concentration ratio in the industry will be Firm O A. 52.5 percent. OB. 35.8 percent. O C. 69.0 percent Annual Sales $1,000 900 120 75 50 40 D. 82.5 percent. 1,200 1,050 90 75     
 
  
  Solution
Following table shows the market share of the firms in descending order -
Fourth and Fifth largest firms are B and G. If these two firms merge then their combined market share will be (15 + 13.33) 28.33%.
Four-firm concentration ratio is sum total of market share of four largest firms in the industry.
After merger,
Four firm concentration ratio = Market share of firm B&G + Market share of firm H + Market share of firm I + Market share of firm A
Four-firm concentration ratio = 28.33% + 20% + 17.5% + 16.67% = 82.5%
The four-firm concentration ratio in the industry will be 82.5 percent.
The correct answer is the option (D).
| Firm | Annual Sales | Market Share (In percent) | 
| H | 1,200 | 20 | 
| I | 1,050 | 17.5 | 
| A | 1,000 | 16.67 | 
| B | 900 | 15 | 
| G | 800 | 13.33 | 
| L | 600 | 10 | 
| C | 120 | 2 | 
| J | 90 | 1.5 | 
| D | 75 | 1.25 | 
| K | 75 | 1.25 | 
| E | 50 | 0.8 | 
| F | 40 | 0.67 | 
| Total | 6,000 | 100 | 

