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Unformatted text preview: and r be the prices of the
labor and capital inputs, respectively.
a) Find the equation for the firm’s longrun total cost curve as a function of quantity Q and input
prices, w and r.
b) Find the solution to the firm’s shortrun cost minimization problem when there are exactly six
shovels, i.e., capital is fixed at a quantity of 6 units (or K = 6). Derive the equation for the firm’s
shortrun total cost curve as a function of quantity Q. Graph this curve together with the longrun
total cost curve for w=1 and r=1. 4) A competitive industry consists of 5 type A firms and 10 type B firms. Each firm of type A
$"10 + P, when P > 10
Supply
=%
operates with the supply curve: QA
when P # 10
& 0,
Supply
Each firm of type B operates with the supply curve: QB
= 2P, for P " 0.
De
a) Suppose the market!
demand is QMamkand = 100 ! 5P . At the market equilibrium, which firms are
r et
producing, and what is the equilibrium price?
!
De
b) Suppose the market demand is QMamkand = 370 ! 10 P . At the market equilibrium, which firms are
r et
producing, and what is the...
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This homework help was uploaded on 03/03/2014 for the course ECON 310 taught by Professor Whinston during the Spring '12 term at Northwestern.
 Spring '12
 Whinston

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