(a) Cournot duopoly leads to a higher producer surplus than monopoly.
(b) The deadweight Lisandro under perfect competition is zero.
(c) the inverse demand P(Q) = a-Q has a constant slope of -1, but it’s elasticity depends on output Q.
(d) Perfect competition has the highest consumer surplus (of all market structures).
(e) deadweight loss for monopoly = social welfare for perfect competition – monopoly profit – consumer surplus for monopoly.
(f) If the AC curve in decreasing in output, we have decreasing returns to scale.
3 ) Find all Nash equilibrium of the game ( you may use the underline method) :
4 ) Consider a market with inverse demand P(Q) = 32 – Q and n firms each with cost function C(q) = 12q.
(a) fine the cournot equilibrium output, industry output, price, per-firm profit, and social welfare.
(b) fund industry output, price, profit, and social welfare in perfect competition.
(c) find monopoly output, price, profit, social welfare and deadweight loss.