Suppose there are two firms in an instant coffee market. Market demand curve is given by P = 100 - 2Q, and marginal cost of production for both firms are equal and constant at m=12.

(a) Find the output that will maximize firm's profit if the two firms choose price simultaneously. What is the price that the firm will charge and how much is the profit of each firm?

(b) Find the output that will maximize firm's profit if two firms choose quantity simultaneously. What is the price that they will charge and how much is the profit of each firm?

(c) Suppose the quantity game as in (b) is played by the firm repeatedly. Compute the revenue matrix for these firms where the two possible actions taken by the firm is either cooperative or non-cooperative. Based on the resulting matrix, calculate the possible discount factor value that allows the two firms to continue in working together. 

Sorry about question (c). It looks dark, but their all from the same question source. Please help me. Thanks in advance.