Podcast
Questions and Answers
What is the own price elasticity of demand when the price of laptops is $15 and the quantity demanded is 50?
What is the own price elasticity of demand when the price of laptops is $15 and the quantity demanded is 50?
Using the formula: ΔQ / Q / (ΔP / P), we can calculate the own price elasticity of demand. Given the data, we have ΔQ = 50 - 60 = -10, Q = 50, ΔP = 15 - 10 = 5, P = 10. Plugging in the values, we get elasticity = (-10 / 50) / (5 / 10) = -2.
How does an increase in the price of juice affect the demand for coffee products in a grocery store?
How does an increase in the price of juice affect the demand for coffee products in a grocery store?
The demand for coffee products will likely increase, as consumers may substitute coffee for juice due to the higher price of juice.
What is the formula for the own price elasticity of demand?
What is the formula for the own price elasticity of demand?
The formula is: ε = (ΔQ / Q) / (ΔP / P)
What is the income elasticity of demand, and how is it calculated?
What is the income elasticity of demand, and how is it calculated?
Signup and view all the answers
What is the equation for the linear demand function in the problem, and what is the elasticity of demand at a price of $20?
What is the equation for the linear demand function in the problem, and what is the elasticity of demand at a price of $20?
Signup and view all the answers
What are the three main factors that affect the own price elasticity of demand?
What are the three main factors that affect the own price elasticity of demand?
Signup and view all the answers
What is cross-price elasticity, and how is it different from own price elasticity?
What is cross-price elasticity, and how is it different from own price elasticity?
Signup and view all the answers
What is the measure of the responsiveness of one variable to changes in another variable?
What is the measure of the responsiveness of one variable to changes in another variable?
Signup and view all the answers
What is the own price elasticity of demand?
What is the own price elasticity of demand?
Signup and view all the answers
How does the coefficient of the linear demand function Qx = 80 - 2Px relate to the own price elasticity of demand?
How does the coefficient of the linear demand function Qx = 80 - 2Px relate to the own price elasticity of demand?
Signup and view all the answers
What are the two aspects of elasticity that are important?
What are the two aspects of elasticity that are important?
Signup and view all the answers
What is the condition for elastic demand?
What is the condition for elastic demand?
Signup and view all the answers
What is the characteristic of a perfectly elastic demand?
What is the characteristic of a perfectly elastic demand?
Signup and view all the answers
What is the condition for unitary elastic demand?
What is the condition for unitary elastic demand?
Signup and view all the answers
What is the difference between elasticity of demand and price elasticity of demand?
What is the difference between elasticity of demand and price elasticity of demand?
Signup and view all the answers
How is income elasticity of demand different from price elasticity of demand?
How is income elasticity of demand different from price elasticity of demand?
Signup and view all the answers
If the income elasticity of demand for organic potatoes is 2.26, what does this imply about the change in demand for organic potatoes when consumer incomes fall by 10 percent over the next three years?
If the income elasticity of demand for organic potatoes is 2.26, what does this imply about the change in demand for organic potatoes when consumer incomes fall by 10 percent over the next three years?
Signup and view all the answers
What is the elasticity of demand for raincoats with respect to the daily amount of rainfall, given the demand function ln Qx d = 10 − 1.2 ln Px + 3 ln R − 2 ln Ay?
What is the elasticity of demand for raincoats with respect to the daily amount of rainfall, given the demand function ln Qx d = 10 − 1.2 ln Px + 3 ln R − 2 ln Ay?
Signup and view all the answers
If the demand function for Invigorated PED shoes is Qx d = 100 − 3Px + 4Py −.01M + 2Ax, what is the own price elasticity of demand when Px = 25, Py = 35, Ax = 50, and M = 20,000?
If the demand function for Invigorated PED shoes is Qx d = 100 − 3Px + 4Py −.01M + 2Ax, what is the own price elasticity of demand when Px = 25, Py = 35, Ax = 50, and M = 20,000?
Signup and view all the answers
What is the cross-price elasticity of demand for Invigorated PED shoes with respect to good Y, given the demand function Qx d = 100 − 3Px + 4Py −.01M + 2Ax?
What is the cross-price elasticity of demand for Invigorated PED shoes with respect to good Y, given the demand function Qx d = 100 − 3Px + 4Py −.01M + 2Ax?
Signup and view all the answers
If the demand function for raincoats is ln Qx d = 10 − 1.2 ln Px + 3 ln R − 2 ln Ay, what would be the impact on demand of a 10 percent increase in the daily amount of rainfall?
If the demand function for raincoats is ln Qx d = 10 − 1.2 ln Px + 3 ln R − 2 ln Ay, what would be the impact on demand of a 10 percent increase in the daily amount of rainfall?
Signup and view all the answers
What is the income elasticity of demand for Invigorated PED shoes, given the demand function Qx d = 100 − 3Px + 4Py −.01M + 2Ax?
What is the income elasticity of demand for Invigorated PED shoes, given the demand function Qx d = 100 − 3Px + 4Py −.01M + 2Ax?
Signup and view all the answers
If the income elasticity of demand for organic potatoes is 2.26, what would be the impact on demand of a 5 percent increase in consumer incomes?
If the income elasticity of demand for organic potatoes is 2.26, what would be the impact on demand of a 5 percent increase in consumer incomes?
Signup and view all the answers
What is the elasticity of demand for Invigorated PED shoes with respect to advertising, given the demand function Qx d = 100 − 3Px + 4Py −.01M + 2Ax?
What is the elasticity of demand for Invigorated PED shoes with respect to advertising, given the demand function Qx d = 100 − 3Px + 4Py −.01M + 2Ax?
Signup and view all the answers
If the income elasticity of demand for a product is 2.5, what would be the percentage change in demand if consumer incomes increase by 8%?
If the income elasticity of demand for a product is 2.5, what would be the percentage change in demand if consumer incomes increase by 8%?
Signup and view all the answers
What would be the impact on demand for raincoats if the daily amount of rainfall decreases by 5% and the elasticity of demand with respect to rainfall is 3?
What would be the impact on demand for raincoats if the daily amount of rainfall decreases by 5% and the elasticity of demand with respect to rainfall is 3?
Signup and view all the answers
If the own price elasticity of demand for a product is -2, what would be the percentage change in demand if the price increases by 10%?
If the own price elasticity of demand for a product is -2, what would be the percentage change in demand if the price increases by 10%?
Signup and view all the answers
What would be the impact on demand for Invigorated PED shoes if the price of good Y increases by 10% and the cross-price elasticity of demand is 1.5?
What would be the impact on demand for Invigorated PED shoes if the price of good Y increases by 10% and the cross-price elasticity of demand is 1.5?
Signup and view all the answers
If the income elasticity of demand for a product is 1.8, what would be the percentage change in demand if consumer incomes decrease by 12%?
If the income elasticity of demand for a product is 1.8, what would be the percentage change in demand if consumer incomes decrease by 12%?
Signup and view all the answers
What would be the impact on demand for raincoats if the amount of advertising on good Y increases by 15% and the elasticity of demand with respect to advertising is 2?
What would be the impact on demand for raincoats if the amount of advertising on good Y increases by 15% and the elasticity of demand with respect to advertising is 2?
Signup and view all the answers
If the own price elasticity of demand for a product is -3, what would be the percentage change in demand if the price decreases by 12%?
If the own price elasticity of demand for a product is -3, what would be the percentage change in demand if the price decreases by 12%?
Signup and view all the answers
What would be the impact on demand for Invigorated PED shoes if average consumer income increases by 15% and the income elasticity of demand is 1.2?
What would be the impact on demand for Invigorated PED shoes if average consumer income increases by 15% and the income elasticity of demand is 1.2?
Signup and view all the answers
If the cross-price elasticity of demand for Invigorated PED shoes with respect to good Y is 2, what would be the percentage change in demand if the price of good Y decreases by 10%?
If the cross-price elasticity of demand for Invigorated PED shoes with respect to good Y is 2, what would be the percentage change in demand if the price of good Y decreases by 10%?
Signup and view all the answers
What would be the impact on demand for organic potatoes if consumer incomes fall by 12% and the income elasticity of demand is 2.26?
What would be the impact on demand for organic potatoes if consumer incomes fall by 12% and the income elasticity of demand is 2.26?
Signup and view all the answers
What is the percentage change in the quantity demanded of laptops when the price increases from $10 to $20, given the demand function Qx d = 80 − 2Px?
What is the percentage change in the quantity demanded of laptops when the price increases from $10 to $20, given the demand function Qx d = 80 − 2Px?
Signup and view all the answers
How does the availability of substitutes affect the own price elasticity of demand for a good?
How does the availability of substitutes affect the own price elasticity of demand for a good?
Signup and view all the answers
What is the difference between the own price elasticity of demand and the cross-price elasticity of demand?
What is the difference between the own price elasticity of demand and the cross-price elasticity of demand?
Signup and view all the answers
How does an increase in consumer income affect the demand for a good with an income elasticity of demand greater than 1?
How does an increase in consumer income affect the demand for a good with an income elasticity of demand greater than 1?
Signup and view all the answers
What is the relationship between the expenditure share and the own price elasticity of demand?
What is the relationship between the expenditure share and the own price elasticity of demand?
Signup and view all the answers
How does an increase in the price of a related good affect the demand for a good, according to the concept of cross-price elasticity?
How does an increase in the price of a related good affect the demand for a good, according to the concept of cross-price elasticity?
Signup and view all the answers
What is the condition for a good to have a unitary elastic demand?
What is the condition for a good to have a unitary elastic demand?
Signup and view all the answers
How does the time period affect the own price elasticity of demand for a good?
How does the time period affect the own price elasticity of demand for a good?
Signup and view all the answers
What is the impact on demand when the price of a complementary good decreases?
What is the impact on demand when the price of a complementary good decreases?
Signup and view all the answers
What is the own price elasticity of demand for laptops when the price is $15 and the quantity demanded is 50, given the demand function Qx d = 80 − 2Px?
What is the own price elasticity of demand for laptops when the price is $15 and the quantity demanded is 50, given the demand function Qx d = 80 − 2Px?
Signup and view all the answers
What is the significance of the sign of elasticity in demand analysis?
What is the significance of the sign of elasticity in demand analysis?
Signup and view all the answers
What is the difference between elastic and inelastic demand, and what are the implications for firms?
What is the difference between elastic and inelastic demand, and what are the implications for firms?
Signup and view all the answers
What is the relationship between the own price elasticity of demand and the slope of the demand curve?
What is the relationship between the own price elasticity of demand and the slope of the demand curve?
Signup and view all the answers
What is the implication of a unitary elastic demand on the revenue of a firm?
What is the implication of a unitary elastic demand on the revenue of a firm?
Signup and view all the answers
What is the difference between perfectly elastic demand and perfectly inelastic demand, and what are the implications for consumer behavior?
What is the difference between perfectly elastic demand and perfectly inelastic demand, and what are the implications for consumer behavior?
Signup and view all the answers
What is the significance of the absolute value of elasticity in demand analysis?
What is the significance of the absolute value of elasticity in demand analysis?
Signup and view all the answers
What is the relationship between the own price elasticity of demand and the revenue of a firm?
What is the relationship between the own price elasticity of demand and the revenue of a firm?
Signup and view all the answers
What is the implication of a change in the own price elasticity of demand on the demand curve?
What is the implication of a change in the own price elasticity of demand on the demand curve?
Signup and view all the answers
What is the difference between the own price elasticity of demand and the cross-price elasticity of demand?
What is the difference between the own price elasticity of demand and the cross-price elasticity of demand?
Signup and view all the answers
What is the significance of understanding the elasticity concept in demand analysis?
What is the significance of understanding the elasticity concept in demand analysis?
Signup and view all the answers
Study Notes
Elasticity Concept
- Elasticity is a measure of the responsiveness of one variable to changes in another variable.
- It represents the percentage change in one variable due to a given percentage change in another variable.
Types of Elasticity
- Own Price Elasticity of Demand: measures the responsiveness of the quantity demanded of a good to a change in the price of that good.
- Cross Price Elasticity: measures the responsiveness of the demand for a good to changes in the price of a related good.
- Income Elasticity: measures the responsiveness of the demand for a good to changes in consumer income.
Elasticity Types by Absolute Value
- Elastic demand: absolute value of own price elasticity is greater than 1.
- Inelastic demand: absolute value of own price elasticity is less than 1.
- Unitary elastic demand: absolute value of own price elasticity is equal to 1.
- Perfectly elastic demand: own price elasticity is infinite in absolute value (demand curve is horizontal).
- Perfectly inelastic demand: own price elasticity is zero (demand curve is vertical).
Factors Affecting Own Price Elasticity
- Available substitutes
- Time
- Expenditure share
Applications of Elasticity
- Organic potatoes: with income elasticity of demand of 2.26, a 10% decrease in consumer income would lead to a 22.6% decrease in demand.
- Raincoats: a 10% increase in daily rainfall would lead to an increase in demand.
- Invigorated PED shoes: own price elasticity, cross-price elasticity, and income elasticity can be calculated using the given demand function.
The Elasticity Concept
- Elasticity is a measure of the responsiveness of one variable to changes in another variable.
- It is the percentage change in one variable that arises due to a given percentage change in another variable.
Own Price Elasticity of Demand
- Own price elasticity of demand is a measure of the responsiveness of the quantity demanded of a good to a change in the price of that good.
- It is the percentage change in quantity demanded divided by the percentage change in the price of the good.
Types of Demand Based on Elasticity
- Elastic demand: when the absolute value of the own price elasticity is greater than 1.
- Inelastic demand: when the absolute value of the own price elasticity is less than 1.
- Unitary elastic demand: when the absolute value of the own price elasticity is equal to 1.
- Perfectly elastic demand: when the own price elasticity is infinite in absolute value, and the demand curve is horizontal.
- Perfectly inelastic demand: when the own price elasticity is zero, and the demand curve is vertical.
Factors Affecting Own Price Elasticity
- Availability of substitutes
- Time
- Expenditure share
Cross Price Elasticity
- Cross price elasticity is a measure of the responsiveness of the demand for a good to changes in the price of a related good.
- It is the percentage change in the quantity demanded of one good divided by the percentage change in the price of a related good.
Income Elasticity
- Income elasticity is a measure of the responsiveness of the demand for a good to changes in consumer income.
- It is the percentage change in quantity demanded divided by the percentage change in income.
Elasticities for Linear Demand Functions
- The elasticities for linear demand functions are:
Demonstration Problems
- Example of own price elasticity: Total Revenue and Elasticity (Qx d = 80 − 2Px)
- Example of cross price elasticity: The effect of a 20% increase in the price of juice on coffee sales.
- Example of income elasticity: The effect of a 10% decrease in consumer income on the demand for organic potatoes.
- Example of estimating elasticities from linear demand functions.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
The concept of elasticity in economics, including its definition, types, and application in measuring responsiveness of variables.