PLS Help with this problem! Thanks so much.

Question 1 (Market Power and Market Concentration) (a) Write down the formula for calculating the Herfindahl Hirschman Index (HHI). (b) Explain what the HHI measures and interpret a low/high HHI values. (2-3 sentences) (c) Write down the formula of Learner's Index (L) for firms with asymmetric costs. (d) Explain the Learner's Index and interpret its low/high values (2-3 sentences) (e) Write down the relationship between HHI and L. Explain. (1-2 sentences)