#1
In microeconomics, what does the term 'variable cost' refer to?
Costs that do not change with the level of output
Costs that change with the level of output
Costs that are incurred even when production is zero
Costs that remain constant over time
#2
Which of the following is an example of a fixed cost for a business?
Raw materials
Rent for the factory building
Wages of temporary employees
Packaging costs
#3
Which cost curve is typically U-shaped in the short run?
Average fixed cost (AFC)
Average variable cost (AVC)
Marginal cost (MC)
Average total cost (ATC)
#4
Which of the following is not a characteristic of a perfectly competitive market?
Many buyers and sellers
Homogeneous products
High barriers to entry
Perfect information
#5
What happens to average variable cost (AVC) as output increases in the short run?
AVC remains constant
AVC decreases
AVC increases
AVC fluctuates unpredictably
#6
Which of the following is an example of a variable cost for a restaurant?
Monthly rent for the premises
Cost of ingredients for a dish
Cost of purchasing kitchen equipment
Salary of permanent staff
#7
What does the average variable cost (AVC) represent in microeconomics?
Total variable cost divided by quantity of output
Total cost divided by quantity of output
Total cost minus fixed cost
Total fixed cost divided by quantity of output
#8
Which of the following statements is true about economies of scale?
Average total cost decreases as quantity of output increases
Average variable cost remains constant as quantity of output increases
Fixed costs increase as quantity of output increases
Total cost increases at the same rate as quantity of output increases
#9
What is the formula for calculating average fixed cost (AFC)?
Total fixed cost divided by quantity of output
Total variable cost divided by quantity of output
Total cost divided by quantity of output
Total cost minus fixed cost
#10
Which of the following is a characteristic of a perfectly competitive market in terms of cost structure?
Firms have significant control over prices
There are barriers to entry for new firms
Firms produce identical products
Firms have high fixed costs
#11
How does a decrease in fixed costs affect a firm's cost structure?
Increases average fixed cost
Decreases average fixed cost
Increases average variable cost
Decreases average variable cost
#12
Which of the following is an example of a sunk cost?
Cost of purchasing new machinery
Cost of raw materials
Cost of training employees
Cost of advertising campaign
#13
What is the relationship between marginal cost and average total cost in the short run?
Marginal cost is always greater than average total cost
Marginal cost is always less than average total cost
Marginal cost intersects average total cost at its minimum point
Marginal cost equals average total cost
#14
What is the relationship between marginal cost and average variable cost?
Marginal cost is always greater than average variable cost
Marginal cost is always less than average variable cost
Marginal cost intersects average variable cost at its minimum point
Marginal cost equals average variable cost
#15
What is the relationship between marginal cost and marginal product of labor?
They are inversely related
They are directly related
They have no relationship
Their relationship depends on the level of fixed costs
#16
What does the long-run average cost curve (LRAC) represent?
The relationship between output and average total cost when all inputs are variable
The relationship between output and average total cost when at least one input is fixed
The relationship between output and marginal cost
The relationship between output and average variable cost