Micro Ch.6
Refer to the accompanying figure. Suppose a law is passed requiring restaurants to charge no more than $25 per meal. This law would:
decrease producer surplus
Suppose a perfectly competitive firm is producing 77 units of output, and the marginal cost of the 77th unit is 11. If the firm can sell each unit of output for $8 and the firm's revenue is sufficient to cover its variable cost, the firm should:
decrease production
An imperfectly competitive firm is one that:
has at least some influence over the market price
One implication of the shape of the demand curve facing a perfectly competitive firm is that:
if the firm increases its price above the market price, it will earn zero revenue
Suppose a perfectly competitive firm is producing 37 units output, and the marginal cost of the 37th unit is $3. If the firm can sell each unit of output for $5 and the firm's revenue is sufficient to cover its variable cost, the firm should:
increase production
The primary objective of most private firms is to:
maximize profit
Assume that each day a firm uses 13 employee-hours per day and an office to produce 100 units of output. The price of each unit output is $5, the hourly wage rate is $10, and rent on the office is $200 per day. Each day the firm earns a ______ of ______.
profit; $170
Average variable cost is defined as:
variable cost divided by total output
John is trying to decide how to divide his time between his job as a stocker in the local grocery store, which pays $7 per hour for as many hours as he chooses to work, and cleaning windows for the businesses downtown. He makes $2 for every window he cleans. John is indifferent between the two tasks, and the number of windows he can clean depends on how many hours he spends cleaning in a day, as shown in the accompanying table. What is the lowest price per window that would induce John to spend at least one hour per day cleaning windows?
$1
Suppose Sarah owns a small company that makes wedding cakes. The accompanying table shows how Sarah's total cost varies depending on the number of wedding cakes she makes each day. Sarah's fixed cost is ______ per day.
$100
Suppose Sarah owns a small company that makes wedding cakes. The accompanying table shows how Sarah's total cost varies depending on the number of wedding cakes she makes each day. The marginal cost of the 4th wedding cake per day is ______.
$100
Suppose Ben owns a small company that makes kites. The market for kites is perfectly competitive, and kites sell for $25 each. Ben's total production costs vary depending on the number of kites he makes each day, as shown in the accompanying table. When Ben makes 2 kites per day, what is his average variable cost?
$13
John is trying to decide how to divide his time between his job as a stocker in the local grocery store, which pays $7 per hour for as many hours as he chooses to work, and cleaning windows for the businesses downtown. He makes $2 for every window he cleans. John is indifferent between the two tasks, and the number of windows he can clean depends on how many hours he spends cleaning in a day, as shown in the accompanying table. John's benefit from his first hour cleaning windows is:
$14
Refer to the accompanying graph. If this firm is a price taker, then when the price of each unit of output is $30, this firm's total revenue at its profit-maximizing level of output is ______.
$2,400
Suppose a firm uses workers and office space to produce output. The firm is locked into a year-long lease on its office space, but it can easily vary the number of employee-hours it uses each day. The accompanying table describes the relationship between the number of employee-hours the firm uses each day and the firm's daily output. Each unit of output sells for $2, the hourly wage rate is $14, and the rent on the office space is $50 per day. When the firm uses 9 employee-hours per day, its total revenue each day is:
$240
John is trying to decide how to divide his time between his job as a stocker in the local grocery store, which pays $7 per hour for as many hours as he chooses to work, and cleaning windows for the businesses downtown. He makes $2 for every window he cleans. John is indifferent between the two tasks, and the number of windows he can clean depends on how many hours he spends cleaning in a day, as shown in the accompanying table. What is the lowest price per window that John would be willing to accept to spend 4 hours per day cleaning windows?
$3.50
For a given seller, the accompanying figure shows the relationship between the number of units produced and the opportunity cost of producing an additional unit of output. What is this seller's reservation price for the 250th unit?
$4
Suppose a firm uses workers and office space to produce output. The firm is locked into a year-long lease on its office space, but it can easily vary the number of employee-hours it uses each day. The accompanying table describes the relationship between the number of employee-hours the firm uses each day and the firm's daily output. Each unit of output sells for $2, the hourly wage rate is $14, and the rent on the office space is $50 per day This firm's fixed cost each day is:
$50
Suppose a firm uses workers and office space to produce output. The firm is locked into a year-long lease on its office space, but it can easily vary the number of employee-hours it uses each day. The accompanying table describes the relationship between the number of employee-hours the firm uses each day and the firm's daily output. Each unit of output sells for $2, the hourly wage rate is $14, and the rent on the office space is $50 per day. This firm's fixed cost each day is:
$50
The accompanying table shows a pizzeria's fixed cost and variable cost at different levels of output. Pizzas sell for $20 each. When the pizzeria makes 100 pizzas a day, its fixed cost is ______ and its total cost is ______.
$500; $1,350
Suppose Chris is a potter who makes mugs. His total costs depend on the number of mugs he makes each day, as shown in the accompanying table. When Chris produces 5 mugs per day, his average variable cost is ______.
$6
John is trying to decide how to divide his time between his job as a stocker in the local grocery store, which pays $7 per hour for as many hours as he chooses to work, and cleaning windows for the businesses downtown. He makes $2 for every window he cleans. John is indifferent between the two tasks, and the number of windows he can clean depends on how many hours he spends cleaning in a day, as shown in the accompanying table. The first hour John spends cleaning windows costs him ______ that he could have earned in the grocery store.
$7
John is trying to decide how to divide his time between his job as a stocker in the local grocery store, which pays $7 per hour for as many hours as he chooses to work, and cleaning windows for the businesses downtown. He makes $2 for every window he cleans. John is indifferent between the two tasks, and the number of windows he can clean depends on how many hours he spends cleaning in a day, as shown in the accompanying table. A second hour cleaning windows will yield additional earnings of ______.
$8
Refer to the accompanying graph. If this firm is a price taker, then when the price of each unit of output is $30, how much profit does this firm earn at its profit-maximizing level of output?
$800
Refer to the accompanying table. To increase output from 33 to 66 units requires ______ extra employee(s) per day; to increase output from 66 to 99 units requires ______ extra employee(s) per day.
1; 2
Refer to the accompanying table. To increase output from 99 to 132 units requires ______ extra employees per day; to increase output from 132 to 165 units requires ______ extra employees per day.
3; 4
Suppose Chris is a potter who makes mugs. His total costs depend on the number of mugs he makes each day, as shown in the accompanying table. If the market for mugs is perfectly competitive, and mugs sell for $7.50 each, then Chris should make ______ mugs per day.
4
Which of the following is a defining characteristic of all perfectly competitive markets?
All firms sell the same standardized product
Refer to the accompanying graph. If this firm is a price taker, then when the price of each unit if output is $15, what is this firm's profit-maximizing level of output?
60
Which of the following will cause an increase market supply?
A technological innovation that lowers the marginal cost of producing the good
Which of the following statements is true for both Microsoft and a locally owned restaurant?
Both seek to maximize profits
The accompanying graph shows the cost curves for Moe's mushroom gathering business, which is perfectly competitive. In the graph above, the average variable cost curve is labeled _____, the average total cost curve is labeled _____, and the marginal cost curve is labeled ______.
C; B; A
John is trying to decide how to divide his time between his job as a stocker in the local grocery store, which pays $7 per hour for as many hours as he chooses to work, and cleaning windows for the businesses downtown. He makes $2 for every window he cleans. John is indifferent between the two tasks, and the number of windows he can clean depends on how many hours he spends cleaning in a day, as shown in the accompanying table. Should John spend a third hour cleaning windows?
No, because the additional amount he would earn is $6, which is less than his opportunity cost of $7
The price equals marginal cost rule for profit maximization is a specific example of which core principle?
The Cost-Benefit Principle
Suppose a firm produces the level of output at which the marginal cost of the last unit produced equals the price of the good. Which of the following statements is always true?
The firm should shutdown if its total revenue is less than its variable cost
Which of the following is the most likely to be a fixed factor of production at a farm?
The land on which the farm is located
Which of the following best explains why you are more likely to see a poor person than a wealthy person picking up aluminum cans to sell?
The opportunity cost of picking up cans is higher for wealthy people than for poor people
A technological innovation that reduces a firm's cost of producing additional units of output will lead to:
an increase in the firm's supply
Which of the following is the most likely to be a fixed factor of production at a pizza restaurant?
The size of the seating area
One reason that variable factors of production tend to show diminishing returns in the short run is that:
There is only so much that can be produced using additional variable inputs when some factors of production are fixed
The short run is best defined as:
a period of time sufficiently short that at least one factor of production is fixed
Jenny sells lemonade in front of her house in the summer. Several other kids in Jenny's neighborhood also run lemonade stands in the summer. The lemonade market in Jenny's neighborhood is more likely to be perfectly competitive if:
each lemonade stand sells the same kind of lemonade
If a perfectly competitive firm produces an output level at which price is greater than marginal cost, then the firm should:
expand output to earn greater profits or smaller losses
If a perfectly competitive firm can sell each unit of output for $9, and the marginal cost of the last unit produced is $8.50, then the:
extra benefit of the last unit produced is greater than the extra cost
Jenny sells lemonade in front of her house in the summer. Several other kids in Jenny's neighborhood also run lemonade stands in the summer. If the lemonade market is perfectly competitive, and Jenny is charging the equilibrium price, then Jenny can increase her revenue if she:
keeps the price of her lemonade the same and increases the output
Suppose a perfectly competitive firm is producing 1,000 units of output and the marginal cost of the 1,000th unit is $7. If the firm can sell each unit of output for $7 and the firm's revenue is sufficient to cover its variable cost, the firm should:
leave production unchanged
Suppose Sarah owns a small company that makes wedding cakes. The accompanying table shows how Sarah's total cost varies depending on the number of wedding cakes she makes each day. If the market for wedding cakes is perfectly competitive, and wedding cakes sell for $95 each, then at her profit-maximizing level of output, Sarah will earn a ______ of ______ per day.
loss; $15
Refer to the accompanying graph. If this firm is a price taker and the price of each unit of output is $9, then at its profit-maximizing level of output, this firm will earn a ______ of ______.
loss; $300
If a production process exhibits diminishing returns, then as output rises:
marginal cost will eventually increase
Suppose Chris is a potter who makes mugs. His total costs depend on the number of mugs he makes each day, as shown in the accompanying table. If Chris's fixed costs decrease, then in the short run, his profit-maximizing level of output will:
not change
Fred runs a fishing lodge and has a very profitable business during the summer. In the fall, the number of guests at the lodge starts to decline. Fred should keep the lodge open:
only during those months in which his total revenue exceeds his variable cost
A seller's supply curve shows the seller's:
opportunity cost of producing an additional unit of output at each quantity
If the market for butter is perfectly competitive, then the demand curve facing a firm that produces butter will be:
perfectly elastic
Refer to the accompanying figure. If the market for doughnuts is perfectly competitive, and the price of a doughnut is 25 cents, then this firm should:
produce 80 doughnuts
The difference between the price a seller actually receives for a good and the seller's reservation price is:
producer surplus
Suppose a firm uses workers and office space to produce output. The firm is locked into a year-long lease on its office space, but it can easily vary the number of employee-hours it uses each day. The accompanying table describes the relationship between the number of employee-hours the firm uses each day and the firm's daily output. Each unit of output sells for $2, the hourly wage rate is $14, and the rent on the office space is $50 per day. When the firm uses 9 employee-hours per day, it earns a daily ______ of ______.
profit; $64
The accompanying table shows a pizzeria's fixed cost and variable cost at different levels of output. Pizzas sell for $20 each. When the pizzeria makes 100 pizzas per day, it earns an economic ______ of ______.
profit; $650
Marginal cost is calculated as:
the change in total costs divided by the change in output
When the price of a perfectly competitive firm's output rises
the firm will prodce more
When the price of a perfectly competitive firm's output rises:
the firm will produce more
When more firms enter an industry:
the industry supply curve will shift right
Your neighbors have offered to pay you to look after their dog while they are on vacation. It will take you one hour per day to feed, walk, and care for the dog, which you can do either before or after you go to work. Your regular job pays $10 per hour, and you can work up to eight hours per day. The smallest amount of money you would accept to look after your neighbor's dog each day is equal to:
the value you place on one hour of leisure
Average total cost is defined as:
total cost divided by total output
Which of the following will cause a decrease in the supply of jeans?
An increase in the wages paid to workers who make jeans
Refer to the accompanying figure. If the market for doughnuts is perfectly competitive, and the price of a doughnut is 25 cents, then at this firm's profit maximizing level of output, the firm will earn an economic ______ of ______ per day.
profit; $8
John is trying to decide how to divide his time between his job as a stocker in the local grocery store, which pays $7 per hour for as many hours as he chooses to work, and cleaning windows for the businesses downtown. He makes $2 for every window he cleans. John is indifferent between the two tasks, and the number of windows he can clean depends on how many hours he spends cleaning in a day, as shown in the accompanying table. How many hours a day should John spend cleaning windows?
2
Refer to the accompanying graph. If this firm is a price taker, then when the price of each unit of output is $30, this firm's profit-maximizing level of output is ______.
80
Even when a firm produces the level of output at which price equals marginal cost, it should shut down if its total revenue is less than its:
variable cost
