four-firm concentration ratio (CR4)=

Principles Of Marketing
17th Edition
ISBN:9780134492513
Author:Kotler, Philip, Armstrong, Gary (gary M.)
Publisher:Kotler, Philip, Armstrong, Gary (gary M.)
Chapter1: Marketing: Creating Customer Value And Engagement
Section: Chapter Questions
Problem 1.1DQ
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Question
Firm
1
3
نا لیا
Nİ
4
5
b)
Suppose that you have an industry with 5 firms. Below are the market shares of
each firm:
Market Share
35
25
15
15
10
Calculate the four-firm concentration ratio (CR4)for this industry. Make an
interpretation about your finding.
Calculate the Herfindahl-Hirschman Index (HHI) for this industry. Make an
interpretation about your finding.
Transcribed Image Text:Firm 1 3 نا لیا Nİ 4 5 b) Suppose that you have an industry with 5 firms. Below are the market shares of each firm: Market Share 35 25 15 15 10 Calculate the four-firm concentration ratio (CR4)for this industry. Make an interpretation about your finding. Calculate the Herfindahl-Hirschman Index (HHI) for this industry. Make an interpretation about your finding.
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