ECON101 Lecture Notes - Lecture 6: Perfect Competition, Aggregate Supply, Demand Curve

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violetmuskrat44

4 Aug 2018

School

University of Delaware

Department

Economics

Course

ECON101

Professor

Jens Schubert

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Document Summary

A perfectly competitive market is a market which has: many buyers and sellers, all firms selling identical products, no barriers to new firms to enter the market. Type of product many identical differentiated identical or many few. Perfectly competitive markets: many buyers and identical product imply that perfectly competitive firms are price takers: firms are unable to affect the market price. Whenever tr < tc, profit is negative (loss) Whenever tr < tc, profit is positive (gain) Profit = tr (p*q) tc (atc *q) Profit = (p-atc)*q (area of a rectangle of height (p-atc) and of width q. Producing at q1, maximizes profit per unit, but not profit. As long as mr > mc, producing more units increases profit. The profit-maximizing level of output is the level of output, where. In this case, we would want to minimize the loss (negative profit) Sometimes a loss may be unavoidable, if we have high fixed costs.

Related Questions

1. Which of the following is a characteristic of pure monopoly?

A. close substitute products

B. barriers to entry

C. the absence of market power

D. "price taking"

2. An example of a monopoly would be

A. one of many U.S. wheat farmers

B. one of the few U.S. automakers

C. AT&T cell phone service

D. the local water company

3. In which market structure do firms exist in very large numbers, each firm produces an identical product, and there is freedom of entry and exit?

A. monopoly

B. oligopoly

C. only perfect competition

D. only monopolistic competition

E. both perfect competition and monopolistic competition

4. Which of the following is the best example of a perfectly competitive market?

A. farming

B. diamonds

C. athletic shoes

D. soft drinks

E. electricity distribution

crimsonalligator541

21)

Compared to the results in a perfectly competitive market, a monopoly does which of the following?

	It charges a higher price.
	It charges a price greater than the marginal cost.
	It produces less output.
	All of the above
	None of the above

22)

"X-inefficiency" refers to the idea that

	government restrictions on competition create a monopoly, which results in inefficiency.
	the cost of rent-seeking activity should be added to the welfare cost of monopoly.
	Generation X is less efficient due to a lack of competitive spirit.
	a lack of competitive pressure results in a monopoly not keeping its costs down to the lowest possible level.
	price discrimination results in inefficiently low cross-elasticities of demand.

23)

Firms in which of the following market structures can engage in price discrimination?

	monopoly
	oligopoly
	monopolistic competition
	All of the above
	None of the above

24)

Monopolistic competition and perfect competition are in all of the following ways except

	Barriers to entry are low in both
	There are many firms in both
	Firms in both produce the output level where MR=MC
	Nonprice competition is important in both

25)

To get rid of excess capacity from the monopolistic competition in the long run, what would have to be given up?

	Free entry and exit.
	economic rent
	resource allocative efficiency
	differentiated product
	productive efficiency

taupeant454

1)Which of the following is true about the Sherman Act?

A.It prohibited price discrimination.

B. It prohibited price-fixing and collusion.

C. It prohibited mergers if it led to weakened competition.

D. It made engaging in predatory activities illegal.

E. It encouraged firms to take advantage of the patent system.

2)
Which of the following is true of price discrimination?

A. Customers need to differ in their willingness to pay for price discrimination to occur.

B. Customers need to have a unit elastic demand curve for price discrimination to occur.

C. Price discriminators profit by charging a uniform price to all customers.

D. Price discriminators lack the incentive to reduce their average total cost of production.

E. Customers can easily resell a good to other customers if there exists price discrimination in the market for the good.

3) Which of the following types of firms do not practice price discrimination?

A. Airlines

B. Movie theaters

C. Soft drink companies

D. Colleges

E. Amusement parks

4) Oligopoly, like perfect competition, is a market structure in which firms can easily enter and leave the industry.

a. True
b. False

Monopolistic competition is characterized by:

A. A large number of firms selling differentiated products.

B. A perfectly elastic demand curve.

C. High barriers to entry.

D. large number of firms selling identical products.

E. A small number of firms selling differentiated products.

6) Which of the following is not a source of product differentiation?

A. Prestige considerations in products

B. Differences in the cost of production of products

C. Physical differences in products

D. Differences in the services provided by firms

E. Differences in the location of sales outlets

7) The restaurants in San Francisco can probably be categorized as examples of firms

A. operating in an oligopolistic market.

B. operating in a monopolistically competitive market

C. operating in a perfectly competitive market

D. forming a cartel.

E. Operating in a monopolistic market

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ECON101 Lecture Notes - Lecture 6: Perfect Competition, Aggregate Supply, Demand Curve

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