Question
Suppose an industry has a duopoly structure. Where the duopoly engage in Bertrand competition (competition in prices). Suppose both agents have the same cost of
Suppose an industry has a duopoly structure. Where the duopoly engage in Bertrand competition (competition in prices).
Suppose both agents have the same cost of production given by
ci(Qi) = 6QiforQi 0,and i {1,2 }
Agentigets a residual demand given by
502p if pi < pj
Q(pi) =1/2(502pi) if pi = pj
0 ifpi> pj
(a) Find the best response function for each duopolist. (Hint: find the optimal price for each agent
while taking the price of the other agent as given.)
(b) Find the price and quantities in the Bertrand-Nash equilibrium.
(c) What can you say about the consumer surplus in the Bertrand equilibrium?
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