#1
Which of the following is a characteristic of perfect competition?
A large number of buyers and sellers
ExplanationPerfect competition involves numerous buyers and sellers with no individual entity having significant market control.
#2
What is the formula for calculating total cost?
Total cost = Fixed cost + Variable cost
ExplanationTotal cost encompasses both fixed and variable costs incurred in production.
#3
Which of the following is a fixed cost?
Rent for factory space
ExplanationFixed costs remain constant irrespective of production levels, like rent for factory space.
#4
Which of the following is an example of a variable cost?
Cost of raw materials
ExplanationVariable costs fluctuate with production levels, such as expenses for raw materials.
#5
Which cost is unaffected by changes in the level of output?
Fixed cost
ExplanationFixed costs remain constant irrespective of production volume, such as salaries for permanent staff.
#6
What is the formula for calculating average variable cost?
Average variable cost = Total variable cost / Quantity of output
ExplanationAverage variable cost represents the variable cost per unit of output and is computed by dividing total variable cost by the quantity of output.
#7
What does the term 'marginal cost' refer to in economics?
The total cost of producing one more unit of a good
ExplanationMarginal cost signifies the additional cost incurred in producing one extra unit of a good.
#8
In the short run, what happens to average total cost as output increases?
It increases
ExplanationAverage total cost rises with increased output due to fixed costs being spread over a smaller quantity of output.
#9
Which cost curve is U-shaped in the long run?
Average total cost
ExplanationThe U-shape of the average total cost curve reflects economies and diseconomies of scale.
#10
What is the relationship between marginal cost and marginal product of labor?
They are inversely related
ExplanationAs the marginal product of labor decreases, marginal cost tends to rise, and vice versa.
#11
What does the long-run average cost curve show?
The lowest possible cost of producing any given level of output
ExplanationThe long-run average cost curve indicates the most cost-efficient production level for various output quantities.
#12
What is the difference between accounting profit and economic profit?
Accounting profit includes explicit costs only, while economic profit includes both explicit and implicit costs
ExplanationAccounting profit considers only tangible costs, whereas economic profit factors in both tangible and opportunity costs.
#13
What is 'economies of scale'?
When the average cost of production decreases as output increases
ExplanationEconomies of scale imply cost advantages gained as production levels increase, leading to lower per-unit costs.
#14
What does 'diseconomies of scale' refer to?
When the firm faces increasing average costs as it increases its output
ExplanationDiseconomies of scale signify a situation where per-unit costs rise as production expands beyond a certain level.
#15
What is the main implication of the existence of economies of scale?
Large firms can produce more efficiently than small firms
ExplanationEconomies of scale allow larger firms to spread costs over higher production volumes, leading to lower per-unit costs.
#16
What is the relationship between marginal cost and marginal revenue at the profit-maximizing level of output?
Marginal cost equals marginal revenue
ExplanationAt the profit-maximizing level of output, marginal cost is equal to marginal revenue, ensuring maximum profit.
#17
Which of the following is not a characteristic of monopolistic competition?
Products are perfect substitutes
ExplanationMonopolistic competition involves differentiated products, meaning they are not perfect substitutes.
#18
What does the law of diminishing marginal returns suggest about the relationship between inputs and output?
As the input increases, the output increases at a decreasing rate
ExplanationThe law indicates that adding more of a variable input eventually leads to smaller increases in output, resulting in diminishing marginal returns.