ECON 102 Lecture Notes - Lecture 17: Marginal Revenue

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jadeworm431

17 Dec 2015

School

University of Illinois

Department

Economics

Course

ECON 102

Professor

Isaac Dilianni--- Universityof Illinois

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ECON 102 Full Course Notes

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Document Summary

Range of economies of scale: the range where long run average total costs decrease as output increases. Range of diseconomies of scale: the range where long run average total costs increase as output increases. Optimal firm size (minimum efficient scale): the quantity of production that minimizes long run average total costs. Transaction costs: any costs of going through with an exchange transaction, other than the price of the good itself. A coercive barrier to entry: the use or threat of force to prevent others from offering their products for sale to the same customers. Total revenue: the amount of money a seller receives in exchange for their products. Marginal revenue: the additional revenue a seller gets from selling one more unit of a good. Profit: the difference between a firm"s total revenue and total cost ( = tr tc) Accounting profit: total revenue minus explicit cost. Explicit cost: the amount of money spent on all inputs to a production process.

Related Questions

36) A firm encountering economies of scale over some range of output will have a:

a) rising long-run average cost curve.

b) falling long-run average cost curve.

c) constant long-run average cost curve.

d) rising, then falling, then rising long-run average cost curve.

37) When a firm doubles its inputs and finds that its output has more than doubled, this is known as:

a) economies of scale.

b) constant returns to scale.

c) diseconomies of scale.

d) a violation of the law of diminishing returns.

38) The larger the diameter of a natural gas pipeline, the lower is the average total cost of transmitting 1,000 cubic feet of gas 1,000 miles. This is an example of:

a) economies of scale.

b) normative economies.

c) diminishing marginal returns.

d) an increasing marginal product of labor.

39) If all resources used in the production of a product are increased by 20 percent and output increases by 20 percent, then there must be:

a) economies of scale.

b) constant returns to scale.

c) diseconomies of scale.

d) increasing the average total costs.

40) Economies and diseconomies of scale explain why the:

a) short-run average fixed cost curve declines so long as output increases.

b) marginal cost curve must intersect the minimum point of the firm's average total cost curve.

c) long-run average total cost curve is typically U-shaped.

d) short-run average variable cost curve is U-shaped.

jadeshark411

1.As long as price is sufficient to cover __________, the firm isbetter off by operating rather than by shutting down in the shortrun.
Answer
marginal cost
average fixed cost
average variable cost
marginal revenue

2.The owner of Tie-Dyed T-shirts, a perfectly competitive firm, hashired you to give him some economic advise. He has told you thatthe market price for his shirts is $20 and that he is currentlyproducing 200 shirts at an AVC of $15 in the short run and an AC of$25. What would you recommend to him?
Answer
To continue producing in the short run, as his loss from productionis less than his fixed costs, but to exit the industry in the longrun if there are no changes in economic conditions.
To shut down in the short run, as he is incurring a loss and toleave the industry in the long run, if there are no changes ineconomic conditions.
To continue to produce in the short run, even though he is earninga loss, and to expand in the future with the hope of increasingmarket share and total revenue.
You tell him you cannot make any recommendations until you knowwhat his fixed costs are.

3.Which type of barrier to entry allows the electric company tomaintain a monopoly over the production of electricity?
Answer
a patent
economies of scale
diseconomies of scale
ownership of a scarce factor of production.

4. Why can a monopolist continue to make positive profits even inthe long-run while a perfectly competitive firm can make only zeroeconomic profits in the long-run?
Answer
Because a monopoly only has one firm while perfect competition hasmany.
Because monopoly has barriers to entry and perfect competition hasfree entry.
Because perfect competition has barriers to entry and monopoly hasfree entry.
Because in perfect competition everyone produces the same productand because in monopoly there are no close substitutes.

5.What is the difference between diminishing returns anddiseconomies of scale?
Answer
Diminishing returns is in the short run while diseconomies of scaleis in the long run.
Diminishing returns is in the long run while diseconomies of scaleis in the short run.
They are both the same thing.
There is no such thing as diseconomies of scale.

6. What does the LAC look like for a firm with constant returns toscale?
Answer
It slopes downwards.
It slopes upwards.
It is a horizontal straight line.
It is a vertical straight line.

7.Natural monopoly occurs when there are:
Answer
large economies of scale.
firms joining together to limit output and raise prices.
different prices for different consumers or groups ofconsumers.
patents.

8.Suppose we know that a monopolist is maximizing its profits.Which of the following must be true? The monopolist has
Answer
maximized its total revenue.
set price equal to its average cost.
maximized the difference between marginal revenue and marginalcost.
set marginal revenue equal to marginal cost.

ochresalmon590

11-Short-run costs which increase and decrease as an output increases or decreases are called: a.Variable costs b.Secondary costs c.Derived costs d.Partial costs e.Potential costs 12.The addition to total cost resulting from the addition of the last unit of output is called the: a.Total variable cost b.Average variable cost c.Fixed cost d.Implicit cost e.Marginal cost 13.The fact that a single large factory may be more efficient than several smaller factories of the same total capacity is a reflection of: a.Increasing returns of scale. b.The law of diminishing marginal returns c.Comparative advantage d.The crowding-out effect e.Reproduction cost of assets 14.A possible reason for the existence of increasing return to scale is: a.The inability of a firm to increase all inputs proportionally b.Problems of coordination and control c.Higher input prices d.Larger fixed costs with a larger plant size. e.Greater specialization 15.The model of perfect competition is useful because: a.Most firms in the real world are perfectly competitive b.Perfectly competitive firms exert significant perfect competition. c.Government regulation is designed to eliminate perfect competition. d.It is a model of an ideal world which sheds much light on a market structureâs effects on resources allocation e.Advertising agencies are heavily dependent on the advertising dollars of perfectly competitive firms 16.A market consisting of many firms producing homogeneous products, having complete knowledge of relevant information, no power over the productâs market price, and low barriers to entry is characteristic of: a.Perfect competition b.Monopoly c.Monopolistic competition d.Oligopoly e.None of the above markets 17.A market consisting of many firms, low barriers to entry, some control over price, but considerable non-price competition is characteristic of: a.Perfect competition b.Monopoly c.Monopolistic competition d.Oligopoly e.None of the above. 18.A market consisting of a few firms producing similar products with significant barriers to entry is characteristic of: a.Perfect completion. b.Monopoly c.Monopolistic competition. d.Oligopoly e.None of the above

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ECON 102 Lecture Notes - Lecture 17: Marginal Revenue

ECON 102 Full Course Notes

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