Find sum of firms profits in the subgame perfect equilibrium

Reference no: EM132142181

Question: Firm 1 must decide whether to enter an industry in which firm 2 is an incumbent. To enter this industry, firm 1 must choose to build either a plant with a small output capacity (S), or large output capacity (L). A plant with small capacity costs $50 to set up; one with large capacity cost $175. In either case, the marginal cost of production is zero. But firm 1 can also opt to stay out (O), in which case it does not incur any type of cost. Firm 2 is able to observe firm 1's decision before deciding whether to expand or not its initial small output capacity operation. Expanding (E) costs firm 2 $87.3, whereas not expanding (N) incurs no cost for the firm. In either case, the marginal cost of production is also zero.

The revenues under the different scenarios are given below.

- If only one small firm exists, its revenue is $80, the other earns zero.

- If two small firms exist, each earns revenue of $70.

- If only one large firm exists, its revenue is $200, the other earns zero.

- If two large firms exist, each earns revenue of $90.

- If one small and one large firm exist, the small firm earns $40, while the large one earns $160.

a) How many pure strategies are available for firm 1?

b) How many pure strategies are available for firm 2?

c) What is the sum of the firms' profits in the subgame perfect equilibrium?

Reference no: EM132142181

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