The table below shows the sales of 50 firms that make up the TATOO industry.
A) Calculate the four-firm concentration ratio.
B) Calculate the Herfindahl-Hirschman Index (HHI).
C) What is the structure of the TATOO industry?
D) Suppose a change in the TATOO industry makes it easier for anyone to enter the industry. How might this change influence the market?
|Next 16 firms (each)||50|
|Next 30 firms (each)||20|