Question
2. Two producers of the same good repeatedly compete in prices for .. periods. They have the same discount factor ... In the stage game,
2. Two producers of the same good repeatedly compete in prices for .. periods. They have the same discount factor ... In the
stage game, each firm chooses between three price levels given below in each part of the problem. The profits are as in the
Bertrand game:
....(...., .....) =
...........
(12 . ....)(.... . 2), ....
12
(12 . ....)(.... . 2), .... = .....
0, .... > .....
In each of the following parts you must explain your positive or negative answer. If your answer says that some path can be
implemented in an SPNE, then you must list the strategies.
Part I: Suppose .... {2, 4, 10}.
(a) [0.5pt] Suppose .. = 2, and .. = 1. Can the path ((4, 4), (4, 4)) be implemented in a SPNE?
Hint: Start by drawing a 3 x 3 table representing the normal form of the stage game and find all stage NE.
(b) [0.5pt] Suppose .. = 2, and .. = 1. Can the path ((10, 10), (10, 10)) be implemented in a SPNE?
(c) [0.5pt] Suppose .. = 2, and .. = 1. Can the path ((10, 10), (4, 4)) be implemented in a SPNE?
(d) [0.5pt] Suppose .. = ?, and .. ? (0, 1). For which .. can the path ((2, 2), (2, 2),?) be implemented in a SPNE?
(e) [0.5pt] Suppose .. = ?, and .. ? (0, 1). For which .. can the path ((10, 10), (10, 10),?) be implemented in a SPNE?
Part II: Suppose .... {3, 4, 10}.
(a) [0.5pt] Suppose .. = 2, and .. = 1. Can the path ((4, 4), (4, 4)) be implemented in a SPNE?
(b) [0.5pt] Suppose .. = 2, and .. = 1. Can the path ((10, 10), (10, 10)) be implemented in a SPNE?
(c) [0.5pt] Suppose .. = 2, and .. = 1. Can the path ((10, 10), (4, 4)) be implemented in a SPNE?
(d) [0.5pt] Suppose .. = ?, and .. ? (0, 1). For which .. can the path ((10, 10), (10, 10),) be implemented in a SPNE?
(e) [0.5pt] Suppose .. = ?, and .. ? (0, 1). For which .. can the path ((4, 4), (4, 4),?) be implemented in a SPNE?
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