ECON-UA 2 Lecture Notes - Lecture 8: Opportunity Cost, Monopolistic Competition, Marginal Revenue

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pinkmoose758

12 Sep 2016

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Average revenue = marginal revenue = price slope of total revenue is constant slope of marginal revenue is constant. ***pro t maximising rule: mr = mc (mc cuts mr from below) total loss = (di erence between mr and atc) x q* shut down price | the p at which a rm is indi erent between producing and shutting down. Rm shuts down when rm goes down below the average variable curve. Rm"s short-run supply curve shows the pro t maximising q supplied at each price ( rm takes as given) supply curve: if price is x, i will supply y (this is pro t maximising supply) + stability = economic pro t must be 0 (normal pro t) all inputs can be varied because rms can adjust capital new rms can enter and existing ones can exit deriving the market supply curve *entry and exit also determine the plant size in the long run.

Related Questions

1. When a profit-maximizing firm produces, they will be producing at that output at which marginal cost = marginal revenue:

all of the time
some of the time
on rare occasions
none of the time

2. Economics Profit is:

the same as accounting profit
sales minus explicit costs and implicit costs
sales minus variable costs and fixed costs
opportunity cost only

3. A market structure with so many firms that no one firm has any influence over price, and firms produce an identical product is called:

monopoly
oligopoly
perfect competition
monopolistic competition

4. Which of the following is NOT a characteristic of a perfectly competitive market?

identical products
perfect mobility
perfect knowledge
price maker

5. The demand curve in a perfectly competitive market is perfectly elastic.

true
false

emeraldwombat313

A. A competitive firm

can consider only its location in setting the price.
must base its competitive price on product differentiation.
has the ability to set its own price.
must accept the price determined by the intersection of the market supply and demand curves.
has no supply curve.

B. If a firm is making an economic profit, then

the factors of production are being paid their opportunity costs.
there will be no change in the number of firms if the industry is perfectly competitive.
the factors of production are being paid less than their opportunity costs.
the factors of production are being paid more than their opportunity costs.
the firm will exit the industry

C. Along a downward-sloping monopoly demand curve,

marginal revenue is greater than price.
the elasticity of demand is constant.
marginal revenue decreases when the price decreases.
marginal revenue is equal to zero when the price is equal to zero

D. If, in the short run, a perfectly competitive firm is producing at a point where the total cost is greater than total revenue, then the firm should

shut down because economic profits are negative.
continue to produce as long as P > AVC.
continue to produce because accounting profits are positive.
set a higher price for its output.
set a lower price for its output

E. For a perfectly competitive firm, the demand curve is

the marginal revenue curve.
perfectly inelastic.
always equal to marginal cost.
the same as the market demand curve

F. A firm in a(n) industry will have the most elastic demand curve

monopolistic
oligopolistic
monopolistically competitive
perfectly competitive

G. If the demand curve of a monopolist is in the inelastic range, then

total revenue will fall if the price increases.
total revenue will be unchanged if the price increases.
total revenue will rise if the price increases.
the total supply will increase by an equal amount if demand increases.
the price will be unchanged if total revenue increases

H. Monopolistic competition and oligopoly are examples of

monopoly.
perfect competition.
theories of consumer behavior.
imperfect competition.
the extreme cases on the market structure continuum

I. Under which market structure do firms face the flattest (most elastic) demand curve?

perfect competition
monopolistic competition
oligopoly
monopoly

J. At the point of long-run equilibrium for a perfectly competitive firm,

economic profits are zero.
TR > TC.
TR < TC.
P = AVC.
normal profits are zero.

brownlouse308

1. A perfectly elastic demand function

Select one:

a. is characteristic of an individual firm operating in a perfectly competitive market.

b. shows that a consumer is willing to pay any amount for the product.

c. shows that the individual firm can increase sales by lowering the price of output.

d. has a marginal revenue that is always decreasing.

2. Your local farmer has many competitors and exists in a market structure known as perfect competition. This means that price is determined outside of the individual farmer's ability to charge a price higher than the going market for a bushel of wheat, hence the farmer is

Select one:

a. a price maker and can therefore charge different customers different prices.

b. a price taker and cannot affect the market price of wheat.

c. always able to price produce above the competition and earn a larger profit.

d. never able to determine any prices he charges for anything, such as soybeans

3. All of the following are true regarding perfectly competitive price determination EXCEPT

Select one:

a. the individual firm takes the market price as given.

b. the individual firm is known as a market price maker.

c. the individual firm's marginal revenue curve is horizontal at the market price.

d. the market price is determined by the interactions among all buyers (households) and firms.

redhornet79

ECON-UA 2 Lecture Notes - Lecture 8: Opportunity Cost, Monopolistic Competition, Marginal Revenue

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