891. In monopoly when abnormal profits are made ?
A. The price set is greater than the marginal cost
B. The price is less than the average cost
C. The average revenue equals the marginal cost
D. Revenue equals total cost

892. Barriers to entry do not include ?
A. Patents
B. Internal economies of scale
C. Mobility of resources
D. High investment costs

893. Real GDP is measured in __________ prices while nominal GDP is measured in _________ prices?
A. foreign; domestic
B. current year; base year
C. domestic; foreign
D. base year; current year
E. intermediate; final

894. UK GDP would exclude which of the following ?
A. Lawyer services purchased by a home buyer
B. The purchase of a new Nissan produced in Sunderland
C. Copper purchased by tap manufacturer Bristan
D. A new art gallery purchased by the city of Newcastle
E. Lawn care services purchased by a home owner.

895. Which of the following is not a characteristic of a monopolistically competitive market ?
A. free entry and exit
B. long run economic profits
C. many sellers
D. differentiated products

896. Which of the following is true regarding the similarities and differences in monopolistic competition and monopoly ?
A. the monopolist faces a downward-sloping demand curve while the monopolistic competitor faces an elastic demand curve
B. the monopolist charges a price above marginal cost while the monopolistic competitor charges a price equal to marginal cost
C. The monopolist makes economic profits in the long run while the monopolistic competitor makes zero economic profits in the long run
D. Both the monopolist and the monopolistic competitor operate at the efficient scale

897. Which of the following is true regarding the production and pricing decisions of monopolistically competitive firms? Monopolistically competitive firms choose the quantity at which marginal cost equals ?
A. marginal revenue and then use the demand curve to determine the price consistent with this quantity
B. average total cost and then use the supply curve to determine the price consistent with this quantity
C. marginal revenue and then use the supply curve to determine the price consistent with this quantity
D. average total cost and then use the demand curve to determine the price consistent with this quantity

898. Which of the following is true with regard to monopolistically competitive firms scale of production and pricing decisions Monopolistically competitive firms produce ?
A. at the efficient scale and charge a price equal to marginal cost
B. at the efficient scale and charge a price above marginal cost
C. With excess capacity and charge a price above marginal cost
D. With excess capacity and charge a price equal to marginal cost

899. When firms enter a monopolistically competitive market and the business-stealing externality is larger than the product-variety externality then ?
A. there are too many firms in the market and market efficiency could be increased if firms exited the market
B. the number of firms in the market is optimal and the market is efficient
C. There are too few firms in the market and market efficiency could be be increased with additional entry
D. The only way to improve efficiency in this market is for the government to regulate it like a natural monopoly.

900. The use of the word “monopoly” in the name of the market structure called “monopolistic competition” refers to the fact that ?
A. monopolistically competitive firms charge prices equal to their marginal costs just like monopolists
B. a monopolistically competitive firms faces a downward-sloping demand curve for its differentiated product and so does a monopolist
C. monopolistically competitive markets have free entry and exit just like a monopolistic market
D. monopolistically competitive firms produce beyond their efficient scale and so do monopolists