08 Jun Question 1. For a particular product, a demand e
Question
1. For a particular product, a demand elasticity is a quantitative measure that shows: the absolute change in quantity demanded relative to the percentage change in any of the other variables included in the demand function for that product. the percentage change in quantity demanded relative to the absolute change in any of the other variables included in the demand function for that product. the absolute change in quantity demanded relative to the absolute change in any of the other variables included in the demand function for that product. the percentage change in quantity demanded relative to the percentage change in any of the other variables included in the demand function for that product. 5 points Question 2 1. Assume the demand for a good is price elastic, i.e., ed> 1 (in absolute terms). This means that if price increases by 10 percent, quantity demanded will: increase by less than 10 percent. decrease by more than 10 percent. decrease by less than 10 percent. increase by more than 10 percent. 5 points Question 3 1. According to the text, the price elasticity of demand for bath tissue has been estimated to be -2.42. This implies that a 10 percent decrease in the price of bath tissue would cause the quantity demanded of bath tissue to: increase by 2.4 percent. decrease by 2.4 percent. increase by 24.2 percent. decrease by 24.2 percent. 5 points Question 4 1. If the percentage change in quantity demanded is less than the percentage change in price, we would say that over this range, demand is: inelastic. perfectly elastic. unit elastic. elastic. 5 points Question 5 1. If electricity demand is inelastic, and electric rates increase, which of the following is likely to occur? Quantity demanded will rise in the short run, but fall in the long run. Quantity demanded will fall in the short run, but rise in the long run. Quantity demanded will fall by a relatively large amount. Quantity demanded will fall by a relatively small amount. 5 points Question 6 1. Suppose the demand for meals at a medium-priced restaurant is elastic. If the management of the restaurant is considering raising prices, it can expect a relatively: small fall in demand. small fall in quantity demanded. large fall in quantity demanded. large fall in demand. 5 points Question 7 1. An increase in price will result in no change in total revenue if: the percentage change in quantity demanded is equal to the percentage change in price. the percentage change in price is large enough to cause quantity demanded to fall to zero. the demand function is perfectly elastic. the coefficient of elasticity is equal to zero. 5 points Question 8 1. The last time the U.S. Post Office raised its prices for mail service critics of the rate increase argued that the Post Office’s revenues would actually decline as a result of the price increase. It can be concluded that: both groups believe demand is elastic, but for different reasons. the Post Office believes demand for mail service is inelastic; opponents of the price increase believe demand is elastic. the Post Office believes demand for mail service is elastic; opponents of the price increase believe demand is inelastic. both groups believe demand is inelastic, but for different reasons. 5 points Question 9 1. All else constant, as the number of available substitutes for a particular good decreases, the price elasticity of demand for that good will: decrease. stay the same. increase. cannot be determined. 5 points Question 10 1. Which of the following is a plausible reason that restaurants offer “Senior Citizen Discounts”? Senior citizens are easily fooled by “come-ons” and are therefore frequently victims of price discrimination. Senior citizens are not very sensitive to changes in price. Senior citizens tend to have inelastic demands for restaurant meals. Senior citizens tend to have elastic demands for restaurant meals. 5 points Question 11 1. Demand for a good will tend to be more elastic if it exhibits which of the following characteristics? It is a non-durable (as opposed to a durable good). The good has many available substitutes. There is little time for the consumer to adjust to the price change. It accounts for a small part of the consumer’s total income. 5 points Question 12 1. If the consumer has a great deal of time to adjust to an increase in the price of gasoline, which of the following is correct? Quantity demanded will be relatively sensitive to the change in price. Demand will tend to be unitary elastic as it is for most goods in the long run. The percentage change in price will be quite large relative to the percentage change in quantity demanded. The percentage change in quantity demanded will be quite small relative to the percentage change in price. 5 points Question 13 1. Many unions attempt to raise the hourly wages received by their members by restricting the supply of workers firms can hire from. Assuming the demand for workers who belong to these unions is inelastic, this would cause: wages of individual union members and the total (combined) income of union members to increase. wages of individual union members to increase and the total (combined) income of union members to decrease. wages of individual union members and the total (combined) income of union members to decrease. wages of individual union members to decrease and the total (combined) income of union members to increase. 5 points Question 14 1. Suppose the price of movies seen at a theater rises from $12 per couple to $20 per couple. The theater manager observes that the rise in price causes attendance at a given movie to fall from 300 persons to 200 persons. What is the price elasticity of demand for movies? (note: use arc price elasticity calculation) 0.5 0.8 1.0 1.2 5 points Question 15 1. Suppose a department store has a sale on its silverware. If the price of a place-setting is reduced from $30 to $20 and the quantity demanded increases from 3,000 place-settings to 5,000 place-settings, what is the price elasticity of demand for silverware? (Note: use arc price elasticity calculation) 0.8 1.0 1.25 1.50 5 points Question 16 1. When demand is inelastic and price is decreased, marginal revenue will be: zero. negative. positive. cannot be determined without more information. 5 points Question 17 1. When total revenue is at its maximum value: average revenue equals marginal revenue. average revenue equals 0. marginal revenue equals 0. marginal revenue equals price. 5 points Question 18 1. Which of the following best describes a perfectly inelastic demand function? When price changes by a certain percentage, quantity demanded changes by the same percentage. Price is completely insensitive to changes in quantity demanded. The demand function is horizontal at the given price. The quantity demanded is completely insensitive to changes in price. 5 points Question 19 1. If the purchase of a good can be moved up or postponed: demand for the good is relatively inelastic. the demand curve for the good is vertical. demand for the good is perfectly inelastic. demand for the good is relatively elastic. 5 points Question 20 1. Coffee and tea would be expected to have: positive income elasticities of demand with respect to each other. a negative cross-price elasticity of demand. a positive cross-price elasticity of demand. negative income elasticities of demand with respect to each other.
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