Economics 1021A/B Chapter Notes - Chapter 4: Inferior Good, Demand Curve, Normal Good

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ECON 1021A/B Full Course Notes

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If the quantity demanded is not very responsive to a change in price, the. If the quantity demanded is very responsive to a change in price, the price barely rises, and the equilibrium quantity changes a lot price rises a lot and the equilibrium quantity doesn"t change much. If the demand curve is steep the quantity demanded of the good isn"t very: looking at slope doesn"t always work because measurement units differ responsive to a change in price. If price cut increases total revenue, demand is elastic. If price cut decreases total revenue, demand is inelastic. If price cut does not change total revenue, demand is unit elastic. If demand for a good is income elastic, the percentage of income spent on that good increases as income increases: positive and less than one (normal good, income inelastic) If demand for a good is income inelastic, the percentage of income spent on that good decreases as income increases: negative (inferior good)

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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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27. Which of the following statements is correct? a. The greater the price elasticity of demand, the more likely the product is a necessity. b. The greater the price elasticity of demand, the smaller the responsiveness of quanti demanded to price. The greater the price elasticity of demand, the greater the percentage change in price over the percentage change in quantity demanded. d. The greater the price elasticity of demand, the greater the responsiveness of quantity demanded to price.

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.

Economics 1021A/B Chapter Notes - Chapter 4: Inferior Good, Demand Curve, Normal Good

ECON 1021A/B Full Course Notes

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