In: Economics
Consider a market with two firms, where the firms manufacture commodities that are identical in all respects. Firm i produces output level qi , i = 1, 2, and q = q1+q2. The market demand curve is p = a−bq where a and b are positive constants. Firm i earns profits πi(q1, q2) = pqi − ciqi , where ci is its unit-cost of production. Assume 0 < ci < a for i = 1, 2. Finally, assume that Firm 2’s costs per unit are twice as high as Firm 1’s. In other words, assume c2 = 2c1.
a = 100,
b = 1,
c1 = 10,
c2 = 20.
(a) Find the best-response functions for both firms.
(b) Sketch of each best response function, first on separate diagrams, then on the same diagram.
(c) Find the Nash equilibrium