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
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 $86, 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.
Answer the following:
a) (0.5 marks) How many pure strategies are available for firm 1?
Answer for part 1
b) (0.5 marks) How many pure strategies are available for firm 2?
Answer for part 2
c) (1 mark) What is the sum of the firms' profits in the subgame perfect equilibrium?
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