ECON281 Chapter 9: Chapter 9 NOTES.docx

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magentabeaver693

25 Jan 2015

School

University of Alberta

Department

Economics

Course

ECON281

Professor

Lorne Priemaza

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ECON281 Full Course Notes

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Long run perfectly competitive equilibrium occurs when: each firm maximizes profits with regards to output and capital, where p=mc, each firm"s economic profit is zero (as firms keep entering until the price is pushed down to zero profits) (p=ac, market demand = market supply. An increaseing cost industry is an industry where increases in output increase the price of inputs. (cid:224) increasing demand will cause price to increase, and firms to enter the market, but as output increase; input prices increase. (cid:224) rise in demand causes a fall in price & increase in costs. A decreasing cost indusrty is an industry where increasing in output decreases the price of inputs. (cid:224) increasing demand will cause price to increase, causing more firms to enter the market, but as firms produce more, input prices fall; market prices fall. (cid:224) rise in demand, causes a fall in prices & lower costs.

Related Questions

13. One of the limitations of Five Forces is that:

a. These tools reduce producer surplus

b. For one firm to increase profit, it takes it from other participants in the industry

c. Does not provide a firm with sustainable competitve advantage

d. both b & c.

15. All these are characterisctics of a monopoly except,

a. There is one seller of the product

b. Has few substitutes

c. Controls a large share of the market

d. Controls a small share of the market

22. Industries with high barriers to entry

a. Pushes profits to normal returns

b. increases the likelihood of firms entering the industry

c. help firms sustain profits

d. increases the number of competitors

14. How does Ebay differ from an economist's view of a perfect competitve market?

a. Ebay has few buyers whereas perfect competitve industry assumes many buyers

b. Ebay has few sellers whereas perfect competitve industry assumes many sellers

c. There is limited information in ebay whereas perfect competitive industry assumes full information for both buyers and sellers

d. There is no difference between these two markets

26. Low cost strategies are usually found in industries where

a. Products are not particularly differentiated

b. Price competion tends to be fierce

c. Both a and b

d. None of the above

Cigarettes - Price Elasticity of demand = - 0.67

A. Cigarettes

B. Alcohol

C. Sodas

D. None of the above

2. The demand for insulin will be ______________ than the demand for a Caribbean cruise in general

a. More elastic

b. More inelastic

c. Less elastic

d. Less inelastic

Match the following.

constant-cost industry	A market structure in which a large number of firms sell a homogenous product or service with no restrictions on entry or exit and each firm is a price-taker.
increasing-cost industry	The demand facing a price-taking firm.
long-run equilibrium	A firm produces zero output but must still pay its fixed costs.
marginal revenue product	Price below which a firm shuts down in the short run.
perfect competition	All firms produce where price equals long-run marginal cost, and economic profits are zero.
perfectly elastic demand	Industry in which input prices rise as all firms in the industry expand output.
shut down	Industry in which input prices remain constant as all firms in the industry expand output.
the shut-down price	The additional revenue earned by hiring one more unit of a variable input.

viridianhare336

Step 1: Read the following scenario. Imagine a market where there is perfect competition between two or more companies, such as a fish market where vendors offer the same products at the same price or online ticket auctions like StubHub. In this market there are four key elements to perfect competition: a large number of buyers and sellers no barriers to entry or exit perfect mobility for customers choosing products homogenous products

Step 2: Use the scenario to answer the following questions. In a one-page (250-word) document, answer the following questions using the information provided in the scenario in Step 1: Explain how output, price, and profit are determined in your perfectly competitive market in the long run. How does that lead to efficiency? How could changes in technology affect the market? How could an increase in demand affect the market? What are the effects of new businesses entering the market? What are the effects of businesses leaving the market?

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ECON281 Chapter 9: Chapter 9 NOTES.docx

ECON281 Full Course Notes

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