ECON10004 Lecture Notes - Lecture 4: Determinant, Normal Good, Economic Equilibrium

31 views3 pages

orchidgnu53

27 Jul 2018

School

University of Melbourne

Department

Economics

Course

ECON10004

Professor

Nisvan Erkal

For unlimited access to Class Notes, a Class+ subscription is required.

Document Summary

Elasticity and it"s applications - factors that determine. Extent of the change in equilibrium price and quantity demanded depends on: i. ii. Elasticity a measure of the responsiveness of demand/supply to their determinants. [% change in quantity demanded] [% change in price] How much does quantity demanded change for a 1% change in price. Useful for comparing responsiveness to price changes between different goods. Can interpret as % change in quantity demanded due to a 1% change in price. A 1% increase in price is going to result in a ___% decrease in quantity demanded. Effect on total revenue depends on relative size of % change in price and % change in quantity. Change in price opposite direction change in quantity demanded. P increase by 1% qd decreases by less than 1% P increase by 1% qd decreases by more than 1% P decrease by 1% qd increases by less than 1%

Related Questions

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

Discussion #1

The law of demand states that a fall in the price of a good raises the quantity demanded, and the increase in price leads to a decrease in quantity demanded. The price elasticity of demand measures the responsiveness of the quantity demanded to a change in price. Demand for a good is said to be elastic if the quantity demanded responds substantially to changes in the price, and the percentage change in quantity demanded is greater than the percentage change in price. Demand is said to be inelastic if the quantity demanded responds only slightly to changes in the price, which indicates that the percentage in price is greater than the percentage in quantity demanded.

However, the extent of responsiveness of quantity demanded to a change in price depends on the nature of a particular good or service in the market. The price elasticity of demand partly depends on the availability of close substitutes. When a large number of substitutes are available, consumers respond to a higher price of a good by buying more of the substitute goods and less of the relatively more expensive good. In addition, goods or services that are considered necessities tend to have less elastic (more inelastic) demand, whereas goods or services that are considered luxuries have more elastic (less inelastic) demands.

Explain why the demand for the good or service provided by the organization you work for is elastic or inelastic. How does this influence pricing decisions?
Provide examples on how the availability of close substitutes affects price elasticity of demand.
Give specific examples of necessities or luxuries, and explain how they affect price elasticity of goods or services.

Please answer ALL bulletins and place the answers under the correct bulletin.

1. When demand is inelastic, a decrease in price will cause

a. an increase in total revenue.

b. a decrease in total revenue.

c. no change in total revenue but an increase in quantity demanded.

d.no change in total revenue but a decrease in quantity demanded.

2. For which of the following types of goods would the income elasticity of demand be positive and relatively large?

a. all inferior goods

b. all normal goods

c. goods for which there are many complements

d. luxuries

3. Which of the following should be held constant when calculating the income elasticity of demand?