15 questions
If P = $10 for Tiny Tee-shirts, Q = 20, but if P = $5, Q = 25. The price elasticity of demand for Tiny Tee-shirts is:
3.0.
1/3
1/2
21
If the price of Kellogg's Corn Flakes goes up from $1.89 to $2.05 and quantity demanded changes from 250 to 210, then the price elasticity of demand would be:
0.47
0.02
250
2.14
Alyssa’s Floral Shoppe dropped its prices for a dozen roses from $45 to $35 this year. Because of this decrease in price, the quantity sold increased from 1000 to 1500. The price elasticity of demand for Alyssa’s roses is:
1.00.
1.6.
0.625.
2.25
The income elasticity of demand is a measure of the:
relative responsiveness of quantity demanded to changes in income.
absolute change in demand yielded by an absolute change in income.
slope of the income-consumption curve.
negative slope of a market demand curve.
If the income elasticity of market demand is negative, most consumers view the good as:
a luxury good
having many imperfect substitutes.
an inferior good.
) a normal good.
If average income rises from $18,000 per year to $22,000 per year and annual gasoline consumption per household rises from 1000 to 1500 gallons, the income elasticity of demand for gas is:
in the inferior range
0.5
1
2
If two goods have negative price cross‑elasticities of demand, the goods are:
inferior goods.
luxury goods.
complementary goods:
substitute goods.
If a price hike from $15 to $20 for DVD disks causes sales of DVD players to fall from 100 to 50 units, the coefficient of cross-elasticity of demand between these goods is roughly:
‑1/10.
‑10.
- 7/3.
-3/7.
A 2% price cut for doodads causes gizmo sales to fall by 3%. The price cross elasticity of demand between these goods is roughly _____ and these goods are _____.
‑2/3, substitutes.
1.5, substitutes.
2/3, complements.
‑1.5, complements.
If Ford raises pickup truck prices 20% and Chevy pickup sales rise 12%, then these goods are _____ and their cross elasticity coefficient is roughly _____.
complements; ‑0.6.
substitutes; 0.6.
substitutes; ‑1.67.
inferior; 1.67.
The percentage change in quantity supplied divided by the percentage change in price is a rough measure of a good's:
unitary margin.
price elasticity of supply.
exclusivity ratio.
price elasticity of demand.
The graph of a demand curve that is perfectly elastic is:
positively sloped.
horizontal.
vertical
negatively sloped.
If a change in the supply of a good results in a percentage change in quantity demanded that exceeds in absolute value the percentage change in price, then demand is relatively:
price elastic.
inferior.
normal.
price inelastic
Which of the following suggest that supply is most price elastic?
A pay hike from $400 to $800 monthly raises military enlistees from 12,000 to 28,000 monthly
A 20% increase in goat milk production follows a 40% rise in the price of cow milk.
Per bushel wheat prices fall from $8 to $5; production drops from 460 to 340 million tons.
Income rises from $2,500 to $3,500 and auto sales rise from 6 to 18 million annually.
Price elasticities of demand tend to
fall as higher prices are charged.
rise as higher prices are charged.
almost always be constant.
not be related to the length of time.