#1
In microeconomics, what does the term 'variable cost' refer to?
Costs that change with the level of output
ExplanationVariable costs vary with production levels.
#2
Which of the following is an example of a fixed cost for a business?
Rent for the factory building
ExplanationFixed costs remain constant regardless of production levels.
#3
Which cost curve is typically U-shaped in the short run?
Average total cost (ATC)
ExplanationATC initially decreases, then increases due to diminishing returns.
#4
Which of the following is not a characteristic of a perfectly competitive market?
High barriers to entry
ExplanationPerfectly competitive markets have low barriers to entry.
#5
What happens to average variable cost (AVC) as output increases in the short run?
AVC increases
ExplanationAs output increases, AVC rises due to diminishing returns.
#6
Which of the following is an example of a variable cost for a restaurant?
Cost of ingredients for a dish
ExplanationVariable costs fluctuate with sales volume.
#7
What does the average variable cost (AVC) represent in microeconomics?
Total variable cost divided by quantity of output
ExplanationAVC measures the cost of each unit of output.
#8
Which of the following statements is true about economies of scale?
Average total cost decreases as quantity of output increases
ExplanationAs production scales up, costs per unit decrease.
#9
What is the formula for calculating average fixed cost (AFC)?
Total fixed cost divided by quantity of output
ExplanationAFC measures the fixed cost per unit of output.
#10
Which of the following is a characteristic of a perfectly competitive market in terms of cost structure?
Firms produce identical products
ExplanationProducts are homogeneous among firms.
#11
How does a decrease in fixed costs affect a firm's cost structure?
Increases average fixed cost
ExplanationReduction in fixed costs raises the per-unit fixed cost.
#12
Which of the following is an example of a sunk cost?
Cost of training employees
ExplanationSunk costs are unrecoverable past expenditures.
#13
What is the relationship between marginal cost and average total cost in the short run?
Marginal cost intersects average total cost at its minimum point
ExplanationMarginal cost intersects the average total cost curve at its lowest point.
#14
What is the relationship between marginal cost and average variable cost?
Marginal cost intersects average variable cost at its minimum point
ExplanationMarginal cost intersects the average variable cost curve at its lowest point.
#15
What is the relationship between marginal cost and marginal product of labor?
They are inversely related
ExplanationAs labor input increases, marginal product decreases, leading to higher marginal 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
ExplanationLRAC shows cost per unit with all inputs variable.