1. The game can be illustrated using a normal form with the following pay-off matrix. There are two sets of actions {Sink wide well, Sink narrow well} and there are two players {Company 1, Company 2}. The pay-offs (cells) represent the profit/loss from each of the 2 sets of strategies adopted by each of the two companies.
Company 2 | |||
Sink wide wells | Sink narrow wells | ||
Company 1 | Sink wide wells | (1,1) | (16,-1) |
Sink narrow wells | (-1,16) | (14,14) |
2. Yes, each of the firms has a strictly dominant strategy. Sinking wide wells is the strictly dominant strategy of each firm. The reason is that irrespective of the strategies adopted by the other player, it is optimal for the respective player to sink wide well (as the pay-offs are maximum when sinking wide well as opposed to sinking narrow well).
3. Given the existence of a strictly dominant strategy, each firm will sink wide well.
4. Yes, there exists a Nash equilibrium which is represented by the underlined pay-offs (in both of the firm's strategies) in the above matrix. The Nash equilibrium is to sink wide wells for each firm as then there is no tendency for each of them to move away to other strategy, pay-off (1,1).
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