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प्रश्न
Define or explain the following concept:
Cross Elasticity of Demand
Define cross elasticity of demand.
उत्तर १
Cross elasticity of demand is the measure of the responsiveness of demand for a good to a change in the price of a related good.
`"Ec" = ("Proportionate change in quantity demanded of good X")/("Proportionate change in price of good Y")`
उत्तर २
Cross elasticity of demand is the ratio of percentage change in quantity demanded of Y commodity to a given percentage change in the price of the related commodity X. It can be expressed as:
`"Ec" = ("Proportionate change in quantity demanded of Y")/("Proportionate change in price of X")`
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संबंधित प्रश्न
Income elasticity of demand for inferior goods is negative.
Income elasticity of demand for inferior goods is negative.
Demand for the commodity having multiple uses has elastic demand.
Explain the factors determining the elasticity of demand.
Price elasticity of demand of goods X is -2 and goods Y is -3. Which of the two goods is more price elastic and why?
The price elasticity of demand for a good is - 0.4. If its price increases by 5 percent, by what percentage will its demand fall? Calculate.
What will be the effect of 10 percent rise in price of a good on its demand if price elasticity of demand is (a) Zero, (b)-1, (c)-2.
Price elasticity of demand for the two goods X and Y are zero and (–) 1 respectively. Which of the two is more elastic and why?
As we move along a downward sloping straight line demand curve from left to right, price
an elasticity of demand : (choose the correct alternative)
(a) remains unchanged
(b) goes on falling
(c) goes on rising
(d) falls initially then rises
When the price of a commodity X falls by 10 percent. Its demand rises from 150 units to 180
units. Calculate is price elasticity of demand. How much should be the percentage fall in its
price so that its demand rises from 150 to 210 units?
When the price of good rise from Rs 10 per unit to Rs 12 per unit, its quantity demanded falls by 20 percent. Calculate its price elasticity of demand. How much would be the percentage change in its quantity demanded, if the price rises from Rs 10 per unit to Rs 13 per unit?
The measure of price elasticity of demand of a normal good carries minus sign while price elasticity of supply carries plus sign. Explain why?
A consumer spends Rs 1000 on a good priced at Rs 8 per unit. When price rises by 25 percent, the consumer continues to spend Rs 1000 on the good. Calculate the price elasticity of demand by percentage method.
A consumer spends Rs 60 on a good priced at Rs 5 per unit. When price rises by 20 percent, the consumer continues to spend Rs 60 on the good. Calculate the price elasticity of demand by percentage method.
A consumer spends Rs 100 on a good priced at Rs 4 per unit. When price rises by 50 percent, the consumer continues to spend Rs 100 on the good. Calculate the price elasticity of demand by percentage method
A consumer spends Rs 1,000 on a good priced at Rs10 per unit. When its price falls by 20 percent, the consumer spends Rs800 on the good. Calculate the price elasticity of demand by the Percentage method
A consumer spends Rs 400 on a good priced at Rs 8 per unit. When its price rises by 25 percent, the consumer spends Rs 500 on the good. Calculate the price elasticity of demand by the Percentage method.
Price elasticity of demand of a good is (-)1. When its price per unit falls by one rupee, its de from 16 to 18 units. Calculate the price before a change
A consumer buys 30 units of a good at a price of the Rs10per unit. The price elasticity of demand for the good is (-) 1. How many units will the consumer buy at a price of Rs 9 per unit? Calculate.
When the price of good rises from Rs10 to Rs12 per unit, its demand falls from 25 units to 20 units. What can you say about price elasticity of demand of the good through the 'expenditure approach'?
A consumer buys 27 units of a good at a price of Rs 10 per unit. When the price falls to Rs 9 per unit, the demand rises to 30 units. What can you say about price elasticity of demand of the good through the 'expenditure approach'?
Price elasticity of demand of a good is (-) 1. Calculate the percentage change in price that will raise the demand from 20 units to 30 units.
Explain any 'two methods' of measuring price elasticity of demand.
A consumer spends Rs 200 on a good priced at Rs 5 per unit. When the price falls by 20 percent, he continues to spend Rs 200. Find the price elasticity of demand by percentage method.
A consumer spends Rs 400 on a good priced at Rs 4 per unit. When the price rises by 25 percent, the consumer continues to spend Rs 400. Calculate the price elasticity of demand by percentage method.
A consumer buys 10 units of a commodity at a price of Rs. 10 per unit. He incurs an expenditure of Rs 200 on buying 20 units. Calculate price elasticity of demand by the percentage method. Comment upon the shape of demand curve based on this information.
8 units of a good are demanded at a price of Rs 7 per unit. Price elasticity of demand is (−) 1. How many units will be demanded if the price rises to Rs 8 per unit? Use expenditure approach of price elasticity of demand to answer this question.
Write short note on:
factors determining elasticity of demand .
State whether the following statement is True or False :
Concept of elasticity of demand is useful for finance minister.
What is the elasticity of demand?
State whether the following statement isTrue or False with reason:
The concept of elasticity of demand is useful in economic theory.
Give reasons or explain the following statements
Demand for basic necessities is inelastic.
State whether the following statements are TRUE or FALSE :
The demand of foodgrains is inelastic.
What do you mean by a normal good?
What do you mean by an ‘inferior good’? Give some examples.
What do you mean by substitutes? Give examples of two goods which are complements of each other.
What do you mean by complements? Give examples of two goods which are complements of each other.
The demand for salt is ______.
Fill in the blank with appropriate alternatives given below:
Perfectly elastic demand curve is ________________.
State whether the following statement is TRUE and FALSE.
Perfectly inelastic demand curve is parallel to the X axis.
State whether the following statement is TRUE and FALSE.
Total outlay is price multiplied by quantity.
State whether the following statement is TRUE and FALSE.
Concept of Elasticity of Demand is useful for finance minister.
Define or explain the following concept:
Unitary Elastic Demand
Define or explain the following concept:
Income Elasticity of Demand
Give reason or explain the following statement:
Demand for necessaries is inelastic.
Give reason or explain the following statement:
Concept of Elasticity of Demand helps trade union leaders.
Give reason or explain the following statement:
Demand for commodity having multiple uses has elastic demand.
Give reason or explain the following statement:
Demand for goods having snob appeal has elastic demand.
Write short answer for the following question :
Total outlay method of measuring price elasticity of demand.
Answer the following question.
Draw diagrams to show the elasticity of demand when it is:
(i) Greater than one
(ii) Less than one
(iii) Unity
Define price elasticity of demand.
State whether the following statement is true or false. Give valid reasons in support of your answer.
The coefficient of price elasticity of demand for the commodity is inversely related to the number of alternative uses of the commodity.
State whether the following statement is true or false. Give valid reasons in support of your answer.
Luxury goods often have lower price elasticity of demand.
Choose the correct answer from given options.
The expenditure on a good would change in the opposite direction as the price changes only when demand is ______
Arrange the following coefficients of price elasticity of demand in ascending order:
(−) 3.1, (−) 0.2, (−) 1.1
- Assertion (A): Elasticity of demand explains that one variable is influenced by another variable.
- Reasoning (R): The concept of elasticity of demand indicates the effect of price and changes in other factors on demand.
Elasticity of demand is equal to one indicates
What are the degrees of price elasticity of Demand?
What are the methods of measuring Elasticity of demand?
If quantity supplied increases by 60% due to a 50% increase in price, then elasticity of supply is ______
Identify the correct pair of items from the following Columns I and II:
| Columns I | Columns II |
| (1) Perfectly elastic supply | (a) Es > 1 |
| (2) Perfectly inelastic supply | (b) Es < 1 |
| (3) Unitary elastic supply | (c) Es = 1 |
| (4) Relatively elastic supply | (d) Es = 0 |
Elasticity of the demand is available when:
What will be the effect on price elasticity of demand, if the time required to find the substitute product is more.
Identify the correctly matched pair from the items in Column A by matching them to the items in column B:
| Column A | Column B |
| 1. Increase or decrease in demand for a commodity does not cause any change in its price. | (a) Effect on supply, in the case of Perfectly Elastic Demand. |
| 2. Increase or decrease in demand causes a change in the price of the commodity. Equilibrium quantity remains constant. | (b) Effect on demand, in the case of Perfectly Inelastic Supply. |
| 3. Increase or decrease in demand cause a change in the price of the commodity. Equilibrium quantity remains constant. | (c) Effect on demand, in the case of Perfectly Elastic Supply. |
| 4. Increase or decrease in demand for a commodity does not cause any change in its price. | (d) Effect on supply, in the case of Perfectly Elastic Demand. |
Identify the correctly matched pair from the items in Column A by matching them to the items in Column B:
| Column A | Column B | ||
| 1 | Relatively Inelastic Demand | (a) | ed > 1 |
| 2 | Relatively Elastic Demand | (b) | ed < 1 |
| 3 | Perfectly Inelastic Demand | (c) | ed = 0 |
| 4 | Perfectly Elastic Demand | (d) | ed = 1 |
Assertion (A): Elasticity of demand explains that one variable is influenced by another variable.
Reasoning (R): The concept of elasticity of demand indicates the effect of price and changes in other factors on demand.
State with reasons whether you agree or disagree with the following statement:
The elasticity of demand gets influenced by the nature of the commodity.
Study the following table and answer the questions:
| Price of Pen (₹) | Demand for Pen |
| 10 | 500 |
| `square` | 400 |
| 30 | `square` |
| `square` | 200 |
| 50 | `square` |
Questions:
- Complete the above table.
- Which type of relationship is found between the price of a pen and demand for the pen?
Assertion (A) : A change in quantity demanded of one commodity due to a change in the price of other commodity is cross elasticity.
Reasoning (R) : Changes in consumers income leads to a change in the quantity demanded.
mention any two examples of composite demand.
The price of a good decreases from ₹100 to 80 per unit. If the price elasticity of demand for the good is 2 and the original quantity demanded is 30 units, calculate the new quantity demanded.
The elasticity of demand for school bag will be ______.
Explain the term elasticity of demand.
Price elasticity of demand is defined as the percentage change in the quantity demanded of a commodity divided by the percentage change in the price of that commodity.
As a result of 5% fall in the price of a good, its demand rises by 12%, the demand for the good will said be ______.
- Luxuries goods have generally elastic demand.
- Goods whose close substitutes are available have inelastic demand.
Define elasticity of demand.
When is the demand for a good said to be elastic?
What is meant by elastic demand?
