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Problem 4. Three firms operate in an oligopoly market with inverse demand function given by D(Q)a Q, where Q- 1 42 +q3 and q, represents the quantity produced by firm i. Each firm has constant marginal cost of production c and no fixed cost, assume that 0<c<a. The firms compete in the market by choosing quantities in the following way. Firm 1, the industry leader, chooses gi20. Firms 2 and 3 both observe qi. Firm 2 then chooses q2 2 0, which is observed by firm 3. Finally, firm 3 chooses q30 (a) Find the subgame perfect equilibrium outcome of this dynamic competition game. Hint: use the backward induction algorithm. (b) Write down the equilibrium strategies that support this outcome. ( zanubir all f. 4 pointsl 3 points 3 points

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