ECON1101 Lecture Notes - Lecture 2: Marginal Utility, Marginal Cost, Marginal Revenue

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26 Oct 2018

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Chapter 2: supply in a perfectly competitive market: The marginal benefit of producing a certain unit of a given good is the extra benefit accrued by producing that unit. If it takes 1 hour to harvest a bushel of apples for . 90, the marginal benefit is . 90. The marginal cost of producing a certain unit of a given good is the extra cost of producing that unit. If the same person can produce 2 units of fish in 1 hr and sell it for . 00 (50c each), the marginal cost is . 00. The cost-benefit principle states that an action should be taken if the marginal benefit is greater than or equal to the marginal cost. The economic surplus of a certain action is the difference between the marginal benefit and the marginal cost of taking that action. In the case above, this will be: . 90 - = 90c.

Related Questions

1. Consumer surplus is not

a. the value of a good minus the price paid for it, summed over the quantity bought.

b. greater on the first unit sold than on the last unit sold.

c. greater on the last unit sold than on the first unit sold.

d. equal to the area below the demand curve and above the market price line.

2. The demand curve for hamburgers is the same as the

a. marginal benefit curve for hamburgers.

b. marginal cost curve of hamburgers.

c. consumer surplus curve of hamburgers.

d. All of the above.

3. A supply curve is

a. the same as a production possibilities frontier.

b. a marginal social benefit curve.

c. a marginal benefit curve.

d. a marginal cost curve.

e. a downward-sloping curve.

4. The opportunity cost of producing one more hot dog is $1.00. The price of a hot dog is $1.50. The producer surplus from selling one more hot dog is

a. $1.00

b. $1.50

c. $0.50

d. zero.

e. $2.50

5. Markets may not achieve an efficient allocation of resources when there are

a. external costs.

b. monopolies.

c. taxes.

d. 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.

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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.

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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.

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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.

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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.

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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.

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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

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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.

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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.

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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.

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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.

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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.

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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).

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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.

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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.

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amberchimpanzee966

1. If the price of a product decreases, we would expect:

a. Demand to increase

b. Quantity supplied to decrease

c. Supply to decrease

d. Quantity supplied to increase

2. "Price" in the statement of the Law of Supply refers to:

a. The amount that buyers are willing and able to pay for each unit of the product.

b. Marginal cost of producing the last unit of the product.

c. The total revenues that sellers receive for selling a given quantity of the product.

d. The total amount that buyers pay to acquire a given quantity of the product.

3. A decrease in demand and an increase in supply will:

a. Affect price in an indeterminate way and decrease the equilibrium quantity

b. Increase the price and affect the equilibrium quantity in an indeterminate way

c. Decrease price and affect the equilibrium quantity in an indeterminate way

d. Increase the price and increase the equilibrium quantity

4. When producers (say, of roads) are not able to make all consumers pay for enjoying their product (i.e., the roads), they tend to see:

a. The marginal cost of production is too low, and there is a supply-side market failure

b. The marginal benefit of production is too high, and there is a demand-side market failure

c. The marginal cost of production is too high, and there is a supply-side market failure

d. The marginal benefit of production that is too low, and there is a demand-side market failure

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ECON1101 Lecture Notes - Lecture 2: Marginal Utility, Marginal Cost, Marginal Revenue

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