Elasticity of Demand and Factors Affecting It
Elasticity of Demand
In this lesson, students will identify
characteristic of elastic and inelastic demand.
Students will be able to define and/or identify
the following terms:
Elasticity
Elastic Demand
Inelastic Demand
Factors Affecting Elasticity of Demand
Do Now: 2/27/20
•
Provide an example of something you
purchased at a demand.
•
Gas prices keep rising but we keep
buying!
•
Doesn’t the law of demand state that
consumers buy less at higher prices?
•
So, why are we still buying gas?
Elasticity of Demand
•
Elasticity of demand is a measure of
how consumers react to a change in
price.
•
Inelastic demand is demand that is
not very sensitive to a change in
price.
•
Elastic demand is demand that is
very sensitive to a change in price.
•
Think pants. These pants have inelastic
waistbands.
•
The waistbands do not change if people
gain weight.
•
Our demand for gasoline is inelastic.
•
It does not change even with a price
increase.
•
Think pants again!
•
Sweat pants have elastic waistbands.
•
The pants change depending on the
size of the person.
•
Our demand for apple juice is elastic.
•
If the price increases, we will buy less.
•
Our demand changes.
•
So, why is our demand for apple
juice elastic and our demand for
gasoline inelastic?
Factors Affecting Elasticity of
Demand
•
The following are factors that can affect the
elasticity of demand:
–
Availability of Substitutes
–
Relative Importance
–
Necessities Versus Luxuries
–
Time (It takes time to find substitutes.)
•
It’s obvious, isn’t it?
•
We can substitute orange juice for
apple juice.
•
Therefore, we deal with a price
increase by substituting one product
for another product.
However, we cannot
substitute milk
for gasoline.
What is this graph telling us about
elasticity of demand?
Wrapping it up!
•
Elasticity of Demand
–
Elasticity of demand is a measure of how
consumers react to a change in price.
–
If demand is inelastic, it is not very
sensitive to a change in price.
–
With inelastic demand, consumers keep
buying despite the price increase.
–
If demand is elastic, consumers will stop
buying a good or service and look for
substitutes.
Questions for Reflection:
•
State the Law of Demand.
•
Why is the law of demand not always
true?
•
Define elasticity.
•
Provide one example of a good with
inelastic demand and explain why demand
for that good is inelastic.
•
Provide one example of a good with
elastic demand and explain why demand
for that good is elastic.
E. Napp
Identify the characteristics of elastic and inelastic demand, define terms like Elasticity, Elastic Demand, and Inelastic Demand. Explore why we still buy gas despite rising prices, the concept of elastic and inelastic demand using examples like pants and apple juice. Learn about factors influencing the elasticity of demand such as availability of substitutes, relative importance, necessities versus luxuries, and time.
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Presentation Transcript
Elasticity of Demand In this lesson, students will identify characteristic of elastic and inelastic demand. Students will be able to define and/or identify the following terms: Elasticity Elastic Demand Inelastic Demand Factors Affecting Elasticity of Demand
Do Now: 2/27/20 Provide an example of something you purchased at a demand.
Doesnt the law of demand state that consumers buy less at higher prices? So, why are we still buying gas?
Elasticity of Demand Elasticity of demand is a measure of how consumers react to a change in price. Inelastic demand is demand that is not very sensitive to a change in price. Elastic demand is demand that is very sensitive to a change in price.
Think pants. These pants have inelastic waistbands. The waistbands do not change if people gain weight.
Our demand for gasoline is inelastic. It does not change even with a price increase.
Think pants again! Sweat pants have elastic waistbands. The pants change depending on the size of the person.
Our demand for apple juice is elastic. If the price increases, we will buy less. Our demand changes.
So, why is our demand for apple juice elastic and our demand for gasoline inelastic?
Factors Affecting Elasticity of Demand The following are factors that can affect the elasticity of demand: Availability of Substitutes Relative Importance Necessities Versus Luxuries Time (It takes time to find substitutes.)
Its obvious, isnt it? We can substitute orange juice for apple juice. Therefore, we deal with a price increase by substituting one product for another product.
However, we cannot substitute milk for gasoline.
What is this graph telling us about elasticity of demand?
Wrapping it up! Elasticity of Demand Elasticity of demand is a measure of how consumers react to a change in price. If demand is inelastic, it is not very sensitive to a change in price. With inelastic demand, consumers keep buying despite the price increase. If demand is elastic, consumers will stop buying a good or service and look for substitutes.
Questions for Reflection: State the Law of Demand. Why is the law of demand not always true? Define elasticity. Provide one example of a good with inelastic demand and explain why demand for that good is inelastic. Provide one example of a good with elastic demand and explain why demand for that good is elastic.
