ssume that we are looking at a market that has 20 firms in it and each firm has 5% of market share. What is the HHI value and how can you classify this market? a. HHI is 2500 and this is a highly competitive market b. HHI is 500 and this is a somewhat competitive market c. HHI is 500 and this is a highly competitive market d. HHI is 500 and this is a mildly oligopoly market