CAS EC 101 Lecture Notes - Lecture 5: Midpoint Method, Demand Curve, Determinant

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15 Mar 2016

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Elasticity: measure of the responsiveness of quantity demanded or quantity supplied, to a change in one of its determinants. Price elasticity of demand: how much the quantity demanded of a good responds to a change in the price of that good, percentage change in quantity demanded divided by the percentage change in price. Elastic demand: quantity demanded responds substantially to changes in price. Inelastic demand: quantity demanded responds only slightly to changes in price. Determinants of price elasticity of demand: availability of close substitutes. Goods with close substitutes: more elastic demand: necessities vs. luxuries. Luxuries: elastic demand: definition of the market. Narrowly defined markets: more elastic demand: time horizon. Demand is more elastic over longer time horizons. Computing the price elasticity of demand: percentage change in quantity demanded divided by percentage change in price, use absolute value (drop the minus sign, midpoint method. Two points: (q1, p1) and (q2, p2) ( q2 q1)

Related Questions

Explain why the demand for the good or service provided by a firm is elastic or inelastic. How does the elastic or inelastic demand influence pricing decisions by the firm to maximize profit? What are the impacts of elastic demand and inelastic demand on total revenue?

Provide examples of how the availability of close substitutes affects the price elasticity of demand for a good or service.

Give specific examples of necessities or luxuries, and explain how they affect price elasticity of goods or services.

salmonlouse248

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.

coffeehornet269

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

CAS EC 101 Lecture Notes - Lecture 5: Midpoint Method, Demand Curve, Determinant

CAS EC 101 Full Course Notes

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