Тестовое задание
There are just four firms in a market, with the following market shares: Firm A has 39%, firm B has 28%, Firm C has 18% and firm D has the remainder. What is the H-H index number for this market?
There are just four firms in a market, with the following market shares: Firm A has 39%, firm B has 28%, Firm C has 18% and firm D has the remainder. What is the H-H index number for this market?