ECON 1 Lecture Notes - Lecture 7: Midpoint Method, Demand Curve

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sangriaferret24

9 Oct 2016

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Own-price elasticity: responsiveness of demand to changes in the price. Sensitive to the starting point midpoint method - average starting and ending points. Changes in elasticity along a given demand curve. Average price / average quantity when converted to percentage changes. The factors that determine elasticity (not mutually exclusive) When quantity demanded does not respond at all to changes in the price. With medically necessary or addictive products, no matter what the price, the amount demanded will stay the same. When quantity demanded drops to 0 if the price increases. With identical products, like tennis balls or pink erasers. If |e| < 1, then () < () is inelastic. If |e| > 1, then () > () is elastic. If |e| = 1, then = is unit elastic. Midpoint method (percentage changes) = difference in p or q / average of p or q. After the price decline, revenue is p2 * q2.

Related Questions

Match the following terms with their proper definitions.

Potential Matches:

1 : measures the responsiveness of the quantity supplied of a good to changes in the price of that good

2 : a formula that measures the responsiveness along a specific section (arc) of a supply or demand curve and measures the "average" price elasticity between two points on the curve.

3 : measures the responsiveness of the quantity supplied of a good to changes in the price of the related good

Answer

: Own-Price Elasticity of Supply

: Cross-Price Elasticity of Supply

: Arc Elasticity

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

When quantity demanded decreases in response to a change in price,

A. the demand curve shifts to the right.
B. the demand curve shifts to the left.
C. there is a movement down along the demand curve.
D. there is a movement up along the demand curve.
E. the supply curve shifts to the right.

The price elasticity of demand is the measure of the responsiveness of the demand for a good to a percentage change in the price of that same good. When the demand for a good changes due to an increase or decrease in the price of the good, it can be said that the good has a price elastic demand. On the other hand, a good whose demand is not significantly affected by a change in the price levels is price inelastic. For example, luxury goods are usually price elastic because these are not something that most people really need. Thus, when the price of luxury goods increases, the demand for such goods falls. Goods that fall within the latter category are usually the basic necessities such as food and prescription medicine. Even when these types of goods become pricier, most people would find ways to afford them because they need those items to survive.

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ECON 1 Lecture Notes - Lecture 7: Midpoint Method, Demand Curve

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