Suppose that firms’ marginal and average costs are constant and equal to c and that inverse market demand is given by P = a – bQ, where a, b > 0 (a) Calculate the profit-maximizing quantity-price combination and for a monopolist. (b) Calculate the Nash equilibrium quantities for Cournot duopolists, which choose quantities and for their identical products simultaneously. Also compute market output and market price. (c) Calculate the perfectly competitive equilibrium price and market output.
- Suppose that firms’ marginal and average costs are constant and equal to c and that inverse market
demand is given by P = a – bQ, where a, b > 0
(a) Calculate the profit-maximizing quantity-
(b) Calculate the Nash
(c) Calculate the
(d) Suppose now that there are n identical firms in a Cournot model (oligopoly). Compute the Nash equilibrium quantities as functions of n. Also compute market output and market price.
(e) Verify (i) that the
(ii) that the duopoly outcome from part (b) can be reproduced in part (d) by setting n = 2;
(iii) that letting n approach infinity yields the same market price and output as in part (c).
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