Which of the following is a characteristic of a perfectly competitive market?
A large number of buyers and sellers
Product differentiation
Significant barriers to entry
Complete control over price by firms
#2
In microeconomics, what does the term 'marginal cost' refer to?
The additional cost of producing one more unit of a good or service
The total cost of producing all units of a good or service
The average cost of producing one unit of a good or service
The opportunity cost of producing one unit of a good or service
#3
What does the term 'opportunity cost' represent in microeconomics?
The explicit cost of production
The highest-valued alternative that must be sacrificed to engage in an activity
The total cost of production
The total revenue from engaging in an activity
#4
What does the term 'short-run' refer to in microeconomics?
A time period during which all inputs can be varied
A time period during which at least one input is fixed
A period of time less than a year
A period of time longer than a year
#5
What does the term 'productivity' refer to in microeconomics?
The quantity of goods and services produced per unit of input
The level of output desired by consumers
The level of profitability of a firm
The ability of a firm to set prices
#6
What is the primary goal of a firm in microeconomic theory?
Maximizing profits
Minimizing costs
Maximizing revenue
Maximizing market share
#7
What does the term 'economic efficiency' refer to in microeconomics?
A situation where all resources are fully utilized
A situation where the production of goods and services occurs at the lowest possible cost
A situation where the production of goods and services is socially optimal
A situation where firms earn maximum profit
#8
What is the Law of Diminishing Marginal Returns?
As more of a variable input is added to a fixed input, marginal product decreases after a certain point
As more of a variable input is added to a fixed input, marginal product increases indefinitely
As more of a fixed input is added to a variable input, marginal product decreases after a certain point
As more of a fixed input is added to a variable input, total product decreases after a certain point
#9
What does the term 'elasticity' measure in microeconomics?
The responsiveness of quantity demanded to changes in price
The responsiveness of price to changes in quantity demanded
The proportion of income spent on a good or service
The proportion of total revenue to total cost
#10
What is a profit-maximizing condition for a firm in perfect competition?
Marginal cost equals average total cost
Marginal revenue equals marginal cost
Price equals average total cost
Price equals marginal cost
#11
What is a characteristic of monopolistic competition?
Many firms selling identical products
Mutual interdependence among firms
Zero economic profit in the long run
Perfectly elastic demand curve
#12
In microeconomic theory, what is the relationship between marginal revenue and marginal cost at the profit-maximizing level of output for a firm operating in a competitive market?
Marginal revenue equals marginal cost
Marginal revenue exceeds marginal cost
Marginal cost exceeds marginal revenue
There is no relationship between marginal revenue and marginal cost