Average And Marginal Cost Functions Quiz

  • AP Econ
  • IB Econ
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1. Which of the following cost line items would be a fixed cost?

Explanation

Rent is considered a fixed cost because it remains constant regardless of the level of production or sales. It is a recurring expense that the company must pay regularly, such as monthly or annually, regardless of the business activity. Unlike variable costs, which fluctuate with production or sales volume, rent remains the same and is not directly influenced by changes in the level of output. Therefore, it is classified as a fixed cost.

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About This Quiz
Average And Marginal Cost Functions Quiz - Quiz

Average cost and marginal cost are two types of costs that we have covered in economics class. It is important for a manufacturer to know how to use these two costs to ensure maximization of profit with ultimate supply. Take up the quiz below and see how much you understand... see morethese costs as taught in class. All the best and keep revising!
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2. Which of the following best describes marginal cost?

Explanation

Marginal cost refers to the additional cost incurred in producing one more unit of output. It is the cost that increases when production is increased by one unit. This concept is important for businesses to determine the optimal level of production and pricing strategies. By understanding the marginal cost, businesses can make informed decisions about how much to produce and at what price to sell their products.

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3. In which of the following markets is a consumer less sensitive to price?

Explanation

In the health care market, consumers are generally less sensitive to price because their primary concern is their health and well-being, rather than the cost of the services or products. Health care is often considered a necessity, and consumers are willing to pay higher prices for quality care and treatments. Additionally, health care decisions are often made based on the advice of medical professionals, rather than solely on price considerations. Therefore, consumers in the health care market tend to be less price-sensitive compared to other markets.

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4. What is a sunk cost?

Explanation

A sunk cost is a cost that has already been incurred and cannot be recovered, regardless of the decision made. It is a cost that is independent of any future choices or actions. Sunk costs are irrelevant to decision-making because they cannot be changed or avoided. Therefore, regardless of the decision made, the sunk cost will remain the same and cannot be recovered.

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5. Which of the following statements is true regarding the relationship between average and marginal cost functions?

Explanation

When the average cost is constant or at a minimum point, it means that the additional cost of producing one more unit of output is equal to the average cost. This is because the average cost is not changing with each additional unit produced. Therefore, the marginal cost is equal to the average cost in this situation.

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6. Suppose an entrepreneur starts a business earning $2M in revenue in 2009 while at the same time incurring $1.8M in costs. If the entrepreneur's best outside alternative employment opportunity is to earn $300K, what are the firms accounting and economic profits?

Explanation

The firm's accounting profit is $200K because it is calculated by subtracting the total costs ($1.8M) from the total revenue ($2M). However, the firm's economic profit is -$100K because it takes into account the opportunity cost of the entrepreneur's best alternative employment opportunity ($300K). Therefore, the economic profit is calculated by subtracting the total costs and the opportunity cost from the total revenue.

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7. What is a Nash equilibrium?

Explanation

A Nash equilibrium is a state in which each player is doing the best they can, given the strategies of all other players. In this state, no player has an incentive to unilaterally deviate from their chosen strategy, as it would not lead to a better outcome for them. It is a stable point where all players are optimizing their choices based on the actions of others, resulting in a balanced outcome.

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8. If a farm is producing as efficiently as it knows how, the how will the total cost function slope?

Explanation

If a farm is producing as efficiently as it knows how, the total cost function will have an upward slope. This means that as the farm increases its level of production, the total cost will also increase. This is because producing more requires additional resources and inputs, which come at a cost. Therefore, the total cost function will show a positive relationship between the level of production and the total cost incurred by the farm.

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9. Suppose a factory is producing 100 units and the price of each unit is $10. If raising the price to $12 per unit results in a drop in sales of 12 units, what is the price elasticity of demand, ƞ?

Explanation

The price elasticity of demand measures the responsiveness of the quantity demanded to a change in price. In this case, the price is raised from $10 to $12, resulting in a drop in sales of 12 units. To calculate the price elasticity of demand, we use the formula: ƞ = (% change in quantity demanded) / (% change in price). The % change in quantity demanded is (-12 / 100) * 100 = -12%. The % change in price is (2 / 10) * 100 = 20%. Therefore, the price elasticity of demand is (-12 / 20) = -0.6, which is the absolute value of 0.6. So, the correct answer is 0.6.

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10. Which of the following variables does not influnce the quantity of product that a firm is able to sell?

Explanation

Plant production costs do not directly influence the quantity of product that a firm is able to sell. While these costs can impact the firm's profitability and pricing decisions, they do not have a direct effect on the demand for the product or the firm's ability to sell it. Factors such as price of the product, price of related products, incomes and tastes of consumers, and advertising can all have a direct impact on the quantity of product that a firm is able to sell.

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11. The basic law of demand says that all other things being the same,

Explanation

The answer is correct because it aligns with the basic law of demand, which states that as the price of a product decreases, consumers will demand more of it. This is because lower prices make the product more affordable and attractive to consumers, leading to an increase in demand. Conversely, as the price of a product increases, consumers will demand less of it due to the higher cost. Therefore, the statement "The lower the price of a product, the more of it consumers will purchase" accurately reflects the relationship between price and consumer demand.

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12. If TC(Q) = 1000Q2 + 100Q + 10, what is the formula for AC(Q)?

Explanation

The formula for AC(Q) can be found by taking the derivative of TC(Q) with respect to Q and dividing it by Q. This will give us the average cost per unit, which is the formula for AC(Q). The given answer, 1000Q + 100 + 10/Q, matches this criteria and is therefore the correct formula for AC(Q).

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13. What is the revenue destructiob effect?

Explanation

The revenue destruction effect refers to the loss in revenue that a firm experiences when it reduces the price of its products in order to sell additional units. This loss occurs because the firm is selling these extra units at a lower price than it could have sold them for, resulting in a decrease in overall revenue.

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14. Which of the following best describes marginal revenue?

Explanation

Marginal revenue refers to the rate of change in total revenue that occurs when selling additional units of output. It represents the incremental sales generated from producing one more unit of a product. This concept helps businesses understand how their sales revenue varies as a function of the quantity of products sold. By analyzing marginal revenue, companies can make informed decisions about production levels and pricing strategies to maximize their profits.

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15. In what special situation might the law of demand not hold?

Explanation

In certain situations, the law of demand may not hold true, such as when high prices confer prestige. In this scenario, the demand for a product might actually increase as the price increases because consumers associate high prices with exclusivity and status. This phenomenon is often observed in luxury goods or high-end brands, where consumers are willing to pay more to demonstrate their wealth and social status. Therefore, in this special situation, the law of demand, which states that as the price of a product increases, the quantity demanded decreases, does not hold.

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16. Which characteristic does not describe a perfectly competitive market?

Explanation

A perfectly competitive market is characterized by firms producing identical or nearly identical products, where the market price is beyond the control of any individual firm. Additionally, a firm's demand curve is perfectly horizontal at the market price, meaning that the firm can sell any quantity of its product at that price. However, in a perfectly competitive market, the industry-level price elasticity is infinite, not finite. This means that a small change in price would result in an infinitely large change in quantity demanded.

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17. If ƞ = 0.8 and P = $25, what is MR?

Explanation

The given question is asking for the marginal revenue (MR) when ƞ (elasticity of demand) is 0.8 and P (price) is $25. The negative sign in front of the answer indicates that the MR is negative, meaning that a decrease in price will lead to an increase in total revenue. The value of -$6.25 suggests that for every $1 decrease in price, the total revenue will increase by $6.25.

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18. At what point can a firm achieve a profit maximizing quantity?

Explanation



In economics, Marginal Revenue (MR) refers to the additional revenue that one more unit of a good or service will produce if it is sold. Marginal Cost (MC) is the cost of producing one additional unit of a product. The principle that firms should continue to produce as long as the marginal revenue of producing an additional unit exceeds the marginal cost (MR > MC) is pivotal. However, the optimal point of production, where profit is maximized, occurs where MR equals MC. This balance ensures that the cost of producing one more unit is exactly covered by the revenue it generates, maximizing profitability before additional units begin to decrease profit (where MR < MC). This condition for profit maximization is a fundamental concept in both microeconomics and managerial economics.
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Which of the following cost line items would be a fixed cost?
Which of the following best describes marginal cost?
In which of the following markets is a consumer less sensitive to...
What is a sunk cost?
Which of the following statements is true regarding the relationship...
Suppose an entrepreneur starts a business earning $2M in revenue in...
What is a Nash equilibrium?
If a farm is producing as efficiently as it knows how, the how will...
Suppose a factory is producing 100 units and the price of each unit is...
Which of the following variables does not influnce the quantity of...
The basic law of demand says that all other things being the same,
If TC(Q) = 1000Q2 + 100Q + 10, what is the formula for AC(Q)?
What is the revenue destructiob effect?
Which of the following best describes marginal revenue?
In what special situation might the law of demand not hold?
Which characteristic does not describe a perfectly competitive market?
If ƞ = 0.8 and P = $25, what is MR?
At what point can a firm achieve a profit maximizing quantity?
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