ECON 1900 Study Guide - Perfect Competition, Average Cost, Marginal Revenue

104 views1 pages

amaranthmuskrat712

21 Feb 2013

School

Department

Course

Professor

For unlimited access to Study Guides, a Grade+ subscription is required.

Document Summary

Start by either solving for the number of firms if you are given the firm"s marginal cost curve and the short run industry supply curve. If you are given the number of firms but not the industry supply curve then you must draw the industry supply curve in: from the industry diagram, find the equilibrium price, p0, and industry quantity, Q0 and label them: at that price, draw the firm"s marginal revenue curve on the firm diagram. (p0 = And label that quantity q0: at that quantity q0, find the value of average total cost. And label that quantity q1: at that quantity q1, find the value of average total cost.

Related Questions

1. In a constant cost industry, P = AC = $20. Which sequence of events follows an increase in demand?

a. P = AC, firms make no economic profit, existing firms leave output unchanged, new firms enter the industry, profits remain normal, P = AC = $20.

b. P > AC, firms make an economic profit, existing firms expand output, new firms enter the industry, the short-run supply curve shifts left, price falls until profits return to $0.

c. P > AC, firms make an economic profit, existing firms expand output, new firms enter the industry, the short-run supply curve shifts right, price falls until profits return to $0.

d. P < AC, firms suffer an economic loss, existing firms reduce output, new firms enter the industry, the short-run supply curve shifts right, price falls until profits exceed $0.

2. Describe the supply curve of a constant cost industry.

a. Upward sloping

b. Flat

c. Downward sloping, then upward sloping

d. Downward sloping

3. At the profit-maximizing output level P = MC, if P > AC then firms can earn an above-normal profit, causing entry into the industry. True or false?

4. In a competitive market, the amount of a good that is produced is such that social surplus is:

a. Minimized

b. Maximized

c. Zero

d. Hidden

magentabee19

Your firm is one of 100 identical firms operating in the short run in a perfectly competitive market. Your total cost function (short run and long run) is C = 800 + 25 q + 0.5 q2, and your marginal cost function is MC = 25 + q. The (short run and long run) market demand curve is given by Q = 2,750 â 5P. a.Find the supply curve for your firm. Show work. Then, find the short-run market supply curve. Show work. b.Find equilibrium price, P*, and quantity, Q*, in the market in the short run.Show work. c.Find the lowest price at which your firm will not exit the market in the long run.Show work. Referring to your answer in part b, should your firm exit the market in the long run if P* in the market does not increase over time?Explain. d.If you choose not to exit, how many firms (including your own) do you expect to be in the market in the long run?Show work, and explain.

lavenderotter524

34. All firms in an industry have the same costs. Assume that all other firms in the industry are in short-run equilibrium. However, at the current level of output of one particular firm, AC-MC>P-MR>AVC. If nothing changes, this firm should: (A) decrease its output. (B) increase its output. (C) keep output constant. (D) shut down in the short run. ((E) decrease output in the short run and shut down in the long run. (F) increase output in the short run and shut down in the long run. (G) adjust output until Total Revenue = Total Cost. (H) produce where the marginal cost curve just cuts the demand curve in the short and long run. (1) none of the above.

ECON 1900 Study Guide - Perfect Competition, Average Cost, Marginal Revenue

Document Summary

Get access

Related Documents

ECON 1900 Study Guide - Marginal Cost, Perfect Competition, Fixed Cost

ECON 1900 Study Guide - Margarine, Demand Curve, Canadian Tire

ECON 1900 Study Guide - Division Of Labour, Natural Monopoly, Average Variable Cost

Related Questions