Question 1: an industry is made up of five firms. Firm 1 and firm 2 each make up to 20% of the total market sales, firm 3 makes up of 35% of the total market sales, firm 4 makes up of 15% of the total market sales and firm 5 makes up of 10% of the total market sales. What is the HHI for this industry?1,80010020502350Both of them, thank you!

Rock Band Payoff Matrix The Beatles Tour No Tour $4m $3m Tour $2m $4m The Rolling Stones $10m $7m No Tour $1m $3m The Beatles and the Rolling Stones are competitors in the rock and roll music industry. Either band can go on tour or not. Consider the hypothetical payoff matrix. Suppose that the bands formed a cartel and split their joint profit 50/50. Which strategies maximize the cartel profits? The Rolling Stones go on tour and the Beatles do not The Beatles go on tour and the Rolling Stones do not Neither band goes on tour O Both bands go on tour