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1. Calculate the 5 firm concentration ratio for UK music
retailers in 2004.

2. Calculate the 6 firm concentration ratio for US film
studios (January 1–December 31, 2005).
Overall Gross: $8.838 billion
Rank

Distributor

Market
Share

Total
Gross*

Movies
2005
Tracked Movies**

1

Warner Bros.

15.6% $1,377.1

25

19

2

20th Century Fox

15.3% $1,353.9

21

18
3

Universal

11.4% $1,010.2

24

19

4

Buena Vista

10.4%

$921.5

23

17

5

Sony

10.4%

$917.8

26

23

6

Paramount

9.4%

$832.2

17

12

7

DreamWorks SKG

5.7%

$501.8

10

9

8

New Line

4.8%

$420.5

13

10

9

Lions Gate

3.2%

$284.0

20

18

10

Dimension

2.1%

$185.1

7

6

11

Miramax

2.1%

$183.7

17

14

12

MGM/UA

2.1%

$181.5

10

9

*In millions. ** # of total movies tracked that were released in 2005.
Source www.boxofficemojo.com

3. Calculate the 4 firm concentration ratio for the UK
Groceries market (12 weeks to January 1 2006).
4. Calculate the 10 firm concentration ratio for the
children’s clothing market (2004).
5. Calculate the 3 firm concentration ratio for cinemas
(2006).
6. Calculate the X firm concentration ratio for the
insurance industry (2006).

7. Calculate the concentration ratio of the US computer
market (2003)
8. Calculate the concentration ratio of the UK electricity
generation market (2007)

9. Calculate the concentration ratio of the global hip and
knee reconstruction market (Times 19.12.06)
10. Calculate the global concentration ratios for mobile
phones and smart phones (Q2 2011)

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Kno it use-it on concentration ratio calculations

  • 1. 1. Calculate the 5 firm concentration ratio for UK music retailers in 2004. 2. Calculate the 6 firm concentration ratio for US film studios (January 1–December 31, 2005). Overall Gross: $8.838 billion Rank Distributor Market Share Total Gross* Movies 2005 Tracked Movies** 1 Warner Bros. 15.6% $1,377.1 25 19 2 20th Century Fox 15.3% $1,353.9 21 18
  • 2. 3 Universal 11.4% $1,010.2 24 19 4 Buena Vista 10.4% $921.5 23 17 5 Sony 10.4% $917.8 26 23 6 Paramount 9.4% $832.2 17 12 7 DreamWorks SKG 5.7% $501.8 10 9 8 New Line 4.8% $420.5 13 10 9 Lions Gate 3.2% $284.0 20 18 10 Dimension 2.1% $185.1 7 6 11 Miramax 2.1% $183.7 17 14 12 MGM/UA 2.1% $181.5 10 9 *In millions. ** # of total movies tracked that were released in 2005. Source www.boxofficemojo.com 3. Calculate the 4 firm concentration ratio for the UK Groceries market (12 weeks to January 1 2006).
  • 3. 4. Calculate the 10 firm concentration ratio for the children’s clothing market (2004).
  • 4. 5. Calculate the 3 firm concentration ratio for cinemas (2006).
  • 5. 6. Calculate the X firm concentration ratio for the insurance industry (2006). 7. Calculate the concentration ratio of the US computer market (2003)
  • 6. 8. Calculate the concentration ratio of the UK electricity generation market (2007) 9. Calculate the concentration ratio of the global hip and knee reconstruction market (Times 19.12.06)
  • 7. 10. Calculate the global concentration ratios for mobile phones and smart phones (Q2 2011)