ECON 1050 Chapter 4: Economics-1 (1) (dragged) 1

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salmoneagle674

17 Sep 2016

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Percentages and proportions the ratio of two proportionate changes is the same as the ratio of two percentage changes/ Elasticity is a ratio of percentages, so a change in the units of measurement of price or quantity leaves the elasticity value the same. The formula yields a negative value, because price and quantity move in opposite directions. But it is the magnitude, or absolute value, that reveals how responsive the quantity change has been to a price change. Demand can be inelastic, unit elastic, or elastic, and can range from zero to infinity. If the quantity demanded doesn"t change when the price changes, the price elasticity of demand is zero and the good has a perfectly inelastic demand. The figure below illustrates the case of a good that has a perfectly inelastic demand.

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1. The concept of price elasticity of demand measures:

a. the slope of the demand curve.

b. the number of buyers in a market.

c. the extent to which the demand curve shifts as the result of a price decline.

d. the sensitiveness of quantities demanded to price changes.

2. When the percentage change in price is less than the resulting percentage change in quantity demanded:

a. demand is elastic.

b. demand is inelastic.

c. demand is unit elastic.

d. none of the above.

3. The elasticity of demand:

a. will be the same at each price-quantity combination on a stable demand curve.

b. tends to be elastic in high-price ranges and inelastic in low-price ranges.

c. tends to be inelastic in high-price ranges and elastic in low-price ranges.

d. is infinitely large for a perfectly inelastic demand curve.

4. Suppose that as the price of Y falls from $2.00 to $1.80 the quantity of Y demanded increases from 110 to 121. It can be concluded that the price elasticity of demand is: _______.

5. Total revenue rises as the price of a good increases if price elasticity of demand is:

a. unitary elastic

b. perfectly inelastic.

6. The demand for such products as salt, bread, and electricity tend to be:

a. relatively price elastic.

b. relatively price inelastic.

c. of unit price elasticity.

d. perfectly price elastic.

coffeeelephant81

1. In each case below, what is the value of the price elasticity of demand? Is demand perfectly inelastic, inelastic, unit elastic, elastic or perfectly elastic?

a. Price falls by 10%, quantity demanded rises by 8%

b. Price rises by 3%, quantity demanded falls by 3%

c. Price rises by 1%, quantity demanded falls by 5%

d. Price rises by 5%, quantity demanded collapses to zero

e. Price falls by 2%, quantity demanded does not change

taupemule214

interval (or arc) elasticity

cross-price elasticity

price elasticity of demand

elastic demand

income elasticity

inelastic demand

inframarginal units

marginal revenue

point elasticity

price effect

quantity effect

total revenue

unitary elastic demand

1. __________________ A measure of consumersâ sensitivity or responsiveness to changes in the price of a good or service.

2. ___________________ When the percentage change in price (in absolute value) is more than the percentage change in quantity demanded (in absolute value).

3. ___________________ When the percentage change in quantity demanded (in absolute value) is more than the percentage change in price (in absolute value).

4. ___________________ When the percentage change in quantity demanded (in absolute value) is just equal to the percentage change in price (in absolute value).

5. ___________________ Total amount paid to a producer for a good or service P * Q.

6. ___________________ The effect on total revenue of a change in price, holding quantity constant.

7. ___________________ The effect on total revenue of a change in quantity, holding price constant.

8. ___________________ An elasticity calculated over an interval of a demand curve or demand schedule.

9. ___________________ Elasticity at a specific price or point on a demand curve.

10. ___________________ A measure of how responsive quantity demanded is to a change in income, all other things constant.

11. ___________________ A measure showing how responsive the quantity demanded of one good is to changes in the price of another good, other factors constant.

12. ___________________ The additional revenue received by producing and selling one more unit of output.

13. ___________________ Units of output that could have been sold at a higher price had the firm not lowered its price to sell additional (marginal) units.

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ECON 1050 Chapter 4: Economics-1 (1) (dragged) 1

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