ECO 105 Chapter Notes - Chapter 1-2: Decision Rule, Marginal Cost, Sunk Costs

81 views2 pages

erinjackal889

25 Oct 2017

School

Department

Course

Professor

For unlimited access to Textbook Notes, a Class+ subscription is required.

Document Summary

Economic reasoning is making decisions on the basis of costs and benefits. Relevant costs and relevant benefits to economic reasoning are the expected incremental costs incurred and the expected incremental benefits that result from a decision. Marginal cost --> the additional cost to you over and above the costs you have already incurred. Sunk costs --> costs that have already been incurred and cannot be recovered. Example for mc and sc: you"ve already paid tuition, it is a sunk cost, so the marginal cost of going to class does not include tuition. Marginal benefit --> the additional benefit above what you"ve already derived. Economic decision rule --> if the marginal benefits of doing something exceed the marginal costs, do it. If the marginal costs of doing something exceed the marginal benefits, don"t do it. Economic reasoning is based on the premise that everything has a cost.

Related Questions

1. When economists speak of "marginal," they mean
a. Opportunity.
b. Scarcity.
c. Incremental.
d. Unimportant.

2. Managers undertake an investment only if
a. Marginal benefits of the investment are greater than zero.
b. Marginal costs of the investment are greater than marginal benefits of the investment.
c. Marginal benefits are greater than marginal costs.
d. Investment decisions do not depend on marginal analysis.

3. A firm produces 500 units per week. It hires 20 full-time workers (40 hours/week) at an hourly wage of $15. Raw materials are ordered weekly, and they cost $10 for every unit produced. The weekly cost of the rent payment for the factory is $2,250. How do the overall costs break down?
a. Total variable cost is $17,000; total fixed cost is $2,250; total cost is $19,250.
b. Total variable cost is $12,000; total fixed cost is $7,250; total cost is $19,250.
c. Total variable cost is $5,000; total fixed cost is $14,250; total cost is $19,250.
d. Total variable cost is $5,000; total fixed cost is $2,250; total cost is $7,250.

4. Total costs increase from $1,500 to $1,800 when a firm increases output from 40 to 50 units. Which of the following is true if marginal cost is constant?
a. FC = $100
b. FC = $200
c. FC = $300
d. FC = $400

5. A manager of a clothing firm is deciding whether to add another factory in addition to one already in production. The manager would compare
a. The total benefits gained from the two factories to the total costs of running the two factories.
b. The incremental benefit expected from the second factory to the total costs of running the two factories.
c. The incremental benefit expected from the second factory to the cost of the second factory.
d. The total benefits gained from the two factories to the incremental costs of running the two factories.

6. A firm is thinking of hiring an additional worker to their organization who they believe can increase total productivity by 100 units a week. The cost of hiring him or her is $1,500 per week. If the price of each unit is $12,
a. The MR of hiring the worker is $1,500.
b. The MC of hiring the worker is $1,200.
c. The firm should not hire the worker since MB < MC.
d. All the above

7. A retailer has to pay $9 per hour to hire 13 workers. If the retailer only needs to hire 12 workers, a wage rate of $7 per hour is sufficient.
What is the marginal cost of the 13th worker?
a. $117
b. $9
c. $33
d. $84

8. If a firm's average cost is rising, then
a. Marginal cost is less than average cost.
b. Marginal cost is rising.
c. Marginal cost is greater than average cost.
d. The firm is making an economic profit.

9. After the first week of his MBA Managerial Economics class, one of your pharmaceutical sales representatives accuses you of committing the sunk-cost fallacy by refusing to allow him to reduce price to make what he considers to be a really tough sale. Which of the following suggests the sales representative may be right?
a. Most of the costs of drug development are sunk, not fixed.
b. Sales representatives are paid a sales commission on revenue, so they don't care about the costs of drug development.
c. Sales representatives don't worry that a low price today may make it more difficult for the company's other sales representatives to charge higher prices to their customers, tomorrow.
d. Sales representatives think only about one thing, sales.

10. A company is producing 15,000 units. At this output level, marginal revenue is $22, and the marginal cost is $18. The firm sells each unit for $48 and average total cost is $40.
What can we conclude from this information?
a. The company is making a loss.
b. The company needs to cut production.
c. The company needs to increase production.
d. Not enough information is provided.

Select all of the following that are best described as sunk costs.

A.The cost of an expensive pair of shoes that I want, but will likely never wear.

B.The non-refundable deposit made a month ago to hold your spot on a rafting trip.

C.The additional money you must pay if you actually go on the rafting trip.

D.The morning run that I miss out on so that I have time to go to Starbucks before class

Imagine Germany and Greece produce only beer and olives. Germany can produce at most 500 kegs of beer or 2000 jars of olives. Greece has fewer workers and a 4 day work week, but they can still produce at most either 100 kegs of beer or 1000 jars of olives. Which of the following is false.

A.Germany has the absolute advantage in producing olives.

B.Greece has the comparative advantage in producing olives.

C.Germany has the comparative advantage in producing beer.

D.Greece does not have a comparative advantage in beer or olives.

Economic thought suggests that when making a decision you should:

A.Compare the opportunity cost with the true economic cost and choose the lowest.

B.Compare the marginal benefit (MB) with the marginal cost (MC) and only do something if MB>MC for that choice.

C.Always buy the cheapest option.

D.Go for the option with lowest average cost relative to average benefit.

A point lying exactly on the production possibility frontier is:

A.an efficient point

B.a super-efficient point

C.a non-attainable point

D.an inefficient point

Which of the following is the best example of a ânormativeâ economic question?

A.What percentage of the wealth is owned by the wealthiest 1% of the US population?

B.Is the income distribution in the United States fair?

C.How much would the economy grow if a new oil pipeline was approved?

D.What will the employment impacts be from a new, higher, minimum wage?

You are on a cruise in the Caribbean Sea, which cost $1,000. On this particular day you have the choice between two activities, both of which would provide marginal mental benefits to your state of mind. The first is a scuba diving trip whose cost was included in the price of the cruise (you get to swim with a school of hammerheads). The second is a shopping spree on St. Thomas that would cost you $500. Which costs and benefits (select all that apply) should you consider when deciding which activity to undergo?

The marginal benefits of the scuba trip.

The $500 cost of the shopping trip.

The marginal benefits of the shopping trip.

The $1,000 cost of the cruise.

All of the above.

Can you solve them and tell me if youre sure 100% 100% 100%

Question 1 (1 point)

If two variables move together but are otherwise unrelated, we have

Question 1 options:

a fallacy of composition.

an econometric model.

a spurious correlation.

an efficiency problem.

evidence of a weak correlation but strong causation.

Save

Question 2 (1 point)

The Latin expression "ceteris paribus": is essential in ______.

Question 2 options:

collecting data.

identifying sunk costs.

evaluating theories.

recognizing scarcity.

developing spurious relationships.

Save

Question 3 (1 point)

Opportunity cost is best defined as

Question 3 options:

marginal cost minus marginal benefit.

the time spent on an economic activity.

the value of the best forgone alternative.

the monetary cost of an economic decision.

marginal cost plus marginal benefit.

Save

Question 4 (1 point)

A cost that cannot be recovered at the time a decision is being made is termed a(n)

Question 4 options:

marginal cost.

scarcity cost.

sunk cost.

average cost.

opportunity cost.

Save

Question 5 (1 point)

If the marginal costs of 1, 2, and 3 hours of talking on the phone are $50, $75, and $105, then the total costs are

Question 5 options:

$50, $150, and $315.

$50, $41.67, and $115.

$50, 125, and $230.

$50, $175, and $405.

impossible to calculate with information given.

Save

Question 6 (1 point)

In general, individuals should specialize in producing those goods for which they

Question 6 options:

can produce more quickly than others.

can produce less quickly than others.

have the lowest opportunity cost compared to others.

have the highest opportunity cost compared to others.

have an average opportunity cost.

Save

Question 7 (1 point)

The extra benefit that comes from an extra unit of activity is called the _________ of the activity.

Question 7 options:

benefit

marginal benefit

marginal cost

average benefit

reservation benefit

Save

Question 8 (1 point)

The marginal benefit of an activity is the

Question 8 options:

same as the total benefits of the activity.

total benefit divided by the level of the activity.

change in the activity divided by the change in benefits.

extra benefit associated with an extra unit of the activity.

total benefit divided by the change in the level of the activity.

Save

Question 9 (1 point)

The fundamental problem that is studied in economics is that

Question 9 options:

consumers have limited wants in the face of unlimited resources.

markets should function without government interference.

Canada is too wealthy.

consumers have unlimited wants in the face of limited resources.

there are unlimited resources.

Save

Question 10 (1 point)

The range of topics, or issues, that fit within the definition of economics is

Question 10 options:

limited to market activities, e.g., buying soap.

limited to individuals and firms.

extremely wide, requiring only the ideas of choice and scarcity.

limited to governments and nations.

very limited.

Save

Question 11 (1 point)

When economists make predictions using the framework of a given economic model, it is usually based on

Question 11 options:

personal experiences.

important relationships between particular variables.

mathematical abstractions.

political implications.

the profit-maximizing objective.

Save

Question 12 (1 point)

The cost of spending an evening partying instead of studying economics is

Question 12 options:

the resulting decrease in the test score in Economics.

the time spent at the party.

the score of the test.

the cost of the textbook.

university tuition.

Save

Question 13 (1 point)

As one progresses from a one-person economy to a large, multi-person economy, the shape of production possibilities curve changes from

Question 13 options:

downward sloping to upwards sloping.

linear to convex (bowed into the origin).

concave (bowed out from the origin) to linear.

convex (bowed into the origin) to concave (bowed out from the origin).

linear to concave (bowed out from the origin).

Save

Question 14 (1 point)

Which is NOT a sunk cost?

Question 14 options:

Monthly rent of $1,000 contractually specified in a one-year lease.

An insurance premium of $50 per year, paid last month.

An attorney's retainer of $50,000 per year.

A worker's wage of $15 per hour.

A non-refundable deposit for a tender.

Save

Question 15 (1 point)

"We should support government intervention because the market produces undesirable outcomes" is an example of

Question 15 options:

positive economics.

normative economics.

comparative economics.

negative economics.

formative economics.

Save

amberchimpanzee966

ECO 105 Chapter Notes - Chapter 1-2: Decision Rule, Marginal Cost, Sunk Costs

Document Summary

Get access

Related textbook solutions

Principles of Economics

Principles of Macroeconomics

Principles of Microeconomics

Related Documents

ECO 105 Chapter Notes - Chapter 1: Marginal Utility, Marginal Cost, Opportunity Cost

ECO 105 Study Guide - Comprehensive Midterm Guide: Externality, Statistical Hypothesis Testing, Mira-Bhayandar Municipal Corporation

[ECO 105] - Final Exam Guide - Everything you need to know! (30 pages long)

Related Questions