#1
Which of the following is a characteristic of a perfectly competitive market?
Many buyers and many sellers
Product differentiation
Barriers to entry
Price-setting power for individual firms
#2
In economics, what does the term 'opportunity cost' refer to?
The cost of an opportunity
The monetary cost of a decision
The highest-valued alternative that must be sacrificed to engage in an activity
The total cost of resources used in production
#3
What is the main difference between short-run and long-run production decisions?
In the short run, all inputs are variable; in the long run, some inputs are fixed
In the short run, some inputs are fixed; in the long run, all inputs are variable
In the short run, all inputs are fixed; in the long run, some inputs are variable
There is no difference between short-run and long-run production decisions
#4
In economics, what is the 'short run'?
A period of time during which all inputs can be adjusted
A period of time during which at least one input is fixed
A period of time during which only variable costs are incurred
A period of time during which production cannot take place
#5
What does the term 'fixed costs' refer to in economics?
Costs that vary with the quantity of output produced
Costs that remain constant regardless of the quantity of output produced
Costs that only occur in the short run
Costs that are incurred when a firm shuts down
#6
Which of the following is NOT a factor of production?
Labor
Capital
Entrepreneurship
Demand
#7
What does the law of diminishing marginal returns state?
As production increases, total costs decrease
As more units of a variable input are added to fixed inputs, the additional output eventually decreases
As more units of a variable input are added to fixed inputs, the additional output remains constant
As production increases, marginal costs remain constant
#8
Which of the following is a characteristic of monopolistic competition?
Many buyers and many sellers
Identical products
Substantial barriers to entry
Product differentiation
#9
What is the formula for calculating total revenue (TR)?
TR = Price × Quantity
TR = Price ÷ Quantity
TR = Price - Quantity
TR = Quantity - Price
#10
Which of the following statements best describes the concept of economies of scope?
It refers to the situation where the average total cost decreases as the quantity of output increases
It refers to the ability of a firm to produce a single product at the lowest possible cost
It refers to the ability of a firm to produce multiple products at a lower cost than if each product were produced separately
It refers to the situation where the marginal cost of production is equal to the average variable cost
#11
What is the relationship between economies of scale and long-run average cost?
Economies of scale occur when long-run average cost increases as output increases
Economies of scale occur when long-run average cost decreases as output increases
Economies of scale occur when long-run average cost remains constant as output increases
There is no relationship between economies of scale and long-run average cost
#12
In the long run, which of the following statements is true for a perfectly competitive firm that experiences economic losses?
The firm will exit the market
The firm will continue to operate at a loss
The firm will increase production to offset losses
The firm will reduce production to minimize losses
#13
What is the relationship between marginal cost (MC) and average variable cost (AVC) when AVC is at its minimum point?
MC = AVC
MC < AVC
MC > AVC
MC = 0
#14
Which of the following is NOT a characteristic of perfect competition?
Homogeneous products
Many buyers and many sellers
Barriers to entry
Perfect information
#15
Which of the following statements best describes a perfectly elastic demand curve?
It is a horizontal line parallel to the quantity axis
It is a downward-sloping line
It is a vertical line parallel to the price axis
It is a curve that intersects both axes