The handcart market contains many identical firms and operates perfectl competitively. Each firm has the short run total cost function STC(q) = 400+ 5q + q² and corresponding short run marginal cost function SMC(q) = 5 + 2q . Short run average total cost is SAC(q) = 400 %3D + 5+ q. A. What is each firm's short run supply curve, assuming that price is higl than the shut-down price? LUse 02 in "PS7 check vour answers" to confirm that vour answer
The handcart market contains many identical firms and operates perfectl competitively. Each firm has the short run total cost function STC(q) = 400+ 5q + q² and corresponding short run marginal cost function SMC(q) = 5 + 2q . Short run average total cost is SAC(q) = 400 %3D + 5+ q. A. What is each firm's short run supply curve, assuming that price is higl than the shut-down price? LUse 02 in "PS7 check vour answers" to confirm that vour answer
Chapter1: Making Economics Decisions
Section: Chapter Questions
Problem 1QTC
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Question

Transcribed Image Text:The handcart market contains many identical firms and operates perfectly
competitively. Each firm has the short run total cost function
STC(q) = 400 + 5q+ q² and corresponding short run marginal cost
function SMC(q) = 5 + 2q . Short run average total cost is
SAC(q) =
400
+5+ q.
A. What is each fırm's short run supply curve, assuming that price is higher
than the shut-down price?
o Use Q2 in "PS7 check your answers" to confirm that your answer is
correct before continuing.
o Firm's short run supply curve, if P > Pshut-down , q° :
B. What is the shut-down price in this industry?
o Shut-down price:
B. What is the shut-down price in this industry?
o Shut-down price:
C. All firms are earning zero profits. How much is each firm producing?
o Hint: if firms earn zero profits (T = 0), then Pq= STC(q) and
P = SAC(q) . Combine this with the profit maximization rule of
P = SMC(q).
o Use Q3 in "PS7 check your answers" to confirm that your answer is
%3D
%3D
correct before continuing.
o Firm-level production: q*
D. What is the market price?
o Market price: P*
%3D
E. Market demand is QD
3090 – 2P.What is QP at the market price?
QD
F. At equilibrium, QD = Q$ = nq , where n is the number of firms in the
market. How many firms are operating in this market?
o n =
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