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Elasticity of Demand and Supply
Elasticity sub of Econ1
60
Business
Undergraduate 1
07/03/2011

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Cards

Term
Elastic Ed (define)
Definition
1% change in Price = More than 1% increase in Qd
Term
Unit Elastic Price Elasticity of Demand (define)
Definition
1% change in Price = 1% change in Qd
Term
Inelastic Price Elasticity of Demand (define)
Definition
1% change in Price will = less than 1% change in Qd
Term
If Price and Total Revenue have an indirect relationship (when one increases, the other decreases) the Elasticity of Demand is _______.
Definition
Elastic
Term
When an increase or decrease of Price does not change Total Revenue, the Elasticity of Demand is _______
Definition
Unit Elastic
Term
When Price and Total Revenue have a direct relationship (when one increases the other increases or vis versa), the elasticity of demand is _________
Definition
inelastic
Term
If Price increases and the elasticity of demand is elastic, then Total Revenue will ______
Definition
decrease
Term
If Price decreases and the Ed is Elastic, Total Revenue will ______
Definition
increase
Term
If Ed is Elastic, Price and Total Revenue have a(n) _______ relationship
Definition
indirect
Term
If Ed is Elastic and Price increases, Total Revenue will ______
Definition
decrease
Term
If Ed is elastic and Price decreases, Total Revenue will _______
Definition
increase
Term
If Ed is Unit Elastic and Price Increases, Total Revenue will
Definition
not change
Term
If Ed is Unit Elastic and Price decreases, Total Revenue will
Definition
not change
Term
If Price and Total Revenue have a direct relationship (when one increases, so does the other and vis versa), then Ed is ________
Definition
Inelastic
Term
If Ed is Inelastic and Price increases, Total Revenue will
Definition
increase
Term
If Ed is Inelastic and Price decreases, Total Revenue will
Definition
decrease
Term
Price elasticity of demand is always positive or negative?
Definition
negative
Term

Price elasticity is stated as a pure (absolute) number

 

True or False

Definition
True
Term
Can you determine Price elasticity from the look of the slope?
Definition
No
Term
Factors that determine Price Elasticity of Demand (5)
Definition

1. Number of substitutes: a product with substitutes will have an elastic Price Elasticity of Demand.

2. Necessity or Luxury: goods that are necessities (glasses, cigs) will have an Inelastic Price Elasticity of Demand, while Luxury Items (jewelry) will have an Elastic Price Elasticity of Deand.

3. Level of Income: poor: basic will be elastic; rich basics will be Inelastic because you will buy the amount you need regardless of price.

4. Price of Product relative to income. large portion of given income - elastic, small portion of income - inelastic (we do not price shop for salt).

5. Length of Period of Adjustment. Price change over long time = elastic; short term inelastic: people will pay higher gas prices short term, but will buy better mileage cars long term.

Term
Price Elasticity of Supply:Es (define)
Definition
measures suppliers' responses to changes in price
Term
Perfectly Inelastic Price Elasticity of Supply (define)
Definition
1% change in Price = 0 change in Quantity Supplied
Term
Inelastic Price Elasticity of Supply (define)
Definition
1% change in price = less than 1% change in Price Quantity Supplied
Term
Unit Elastic Price Elasticity of Supply (define)
Definition
1% change in Price = 1% change in Quantity Supplied
Term
Perfectly Elastic Price Elasticity of Supply (define)
Definition
1% change in Price = infinite change in Quantity Supplied
Term
Elastic Price Elasticity of Supply (define)
Definition
1% change in Price = More than 1% change in Quantity Supplied
Term
Determinants of Price Elasticity of Supply (7)
Definition

1. how quickly costs per unit rise as firms increase their output.

2. the availability of close input substitutes.

3. the amount of time available to adjust production to changing conditions

4. the degree of the market share controlled among producers

5. the expected future price of the product

6. the price of related inputs and related outputs

7. the speed of technological advances in production that can lower costs.

Term

Income Elasticity of Demand (define)

Definition
measures the % change in Demand due to the % change on consumers' income.
Term
Luxuries (define)
Definition
When the Income Elasticity of Demand is greater than 1 (and positive), then the good is a Luxury
Term
Necessity (define)
Definition
When Income Elasticity of Demand is less than 1 and positive the good is a necessity
Term
Inferior Goods (define)
Definition

When a decrease in Income Elasticity of Demand = an Increase in Demand the good is an Inferior Good.

 

Income Elasticity of Demand is negative.

 

(such as 99 cent store during recession)

Term
Cross Elasticity of Demand (define)
Definition
Comparing % price change of one good to the % Quantity Demanded change of another.  Will determine if goods are substitutes or complements to each other.
Term
Substitute Goods (define)
Definition

used to identify goods through Cross Elasticity. An increase in price for one will increase Quantity Demanded for the other and vis versa.

 

If the price of one brand of toothpaste goes up, people will purchase another brand, therefore they are substitutes.

 

Cross Elasticity of Demand = positive number

Term
Complement Goods (define)
Definition

used to define goods when comparing Cross Elasticity. The increase of price for one good will decrease the Quantity Demanded of its complement.

 

Complement Goods = negative Cross Elasticity totals.

 

(pencils and pencil sharpeners)

Term
Independent Goods
Definition
Identify type of good when measuring Cross Elasticity of Demand. When CED=0.
Term
When calculating the % change of Equilibrium Price, an increase in demand = ________ in price
Definition
increase
Term
When calculating the % change of Equilibrium Price, a decrease in demand = ________ in price
Definition
decrease
Term
% change of Equilibrium Price and Demand have a(n) ________ relationship
Definition
direct
Term
When calculating the % change of Equilibrium Price, an increase in Supply = ________ in price
Definition
decrease
Term
When calculating the % change of Equilibrium Price, an decrease in Supply = ________ in price
Definition
increase
Term
% change in Equilibrium Price and Supply have a(n) ________ relationship
Definition
indirect. When supply increases, Equilibrim Price decrease and vis versa
Term
Applications of Price Elasticity of Demand (6)
Definition
1. Help explain revenue of Farmers in US and Developing Countries. 2. Formulate Taxation Policies. 3. Determine which Industries to run as Public Utilities. 4. Fix Prices for Monopolists. 5. Fix the rate of exchange. 6. Stablize Agricultural Prices.
Term
An increase in Price = ______ in Ed
Definition
increase
Term
A Decrease in Price = A(n) ____ in Ed
Definition
Decrease
Term
Price and Ed have a(n) ______ relationship
Definition
direct. When one decrease/increases so does the other.
Term
An increse in Quantity Demanded = _____ in Elasticity of Demand
Definition
decrease
Term
A decrease in Quantity Demanded = _____ in Elasticity of Demand
Definition
increase
Term
Quantity Demanded and Elasticity of Demand have a(n) ______ relationship
Definition
indirect. when one increases/decreases the other does the opposite.
Term
Parallel lines get _____ inelastic the further away they are from the origin
Definition
more
Term
Ed Measures the _____ response to change in price
Definition
buyers
Term
Es measures the _____ response to change in ______.
Definition
producers....price
Term
Ei measures the ________ response to change in ______
Definition
buyers....income
Term
Ex measures the _____ response to change in _____ of other goods.
Definition
buyers...price
Term
When Ei is negative the goods are
Definition
inferior
Term
Es is always
Definition
positive
Term
Ed is always ______
Definition
negative
Term
Ei can be positive or negative.

True or False
Definition
True
Term
Ei is always positive.

True or False
Definition
False
Term
Ex can be positive, negative or zero.

True or False
Definition
True
Term
Ex can only be negative.

True or False
Definition
False
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