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प्रश्न
Give reason or explain the following statement.
All desires are not demand.
उत्तर
Desires refer to those wishes that a human being cherishes such as to walk on the moon, to be a billionaire and to buy a Rolls-Royce. These wishes may not always be backed by enough finance to realise them. It is only when a desire is backed by sufficient purchasing power, along with the consumer’s readiness to spend on materialising the wish, that it becomes demand. Thus, until a consumer has sufficient money and he/she is willing to spend, a desire will remain a desire. Thus, we can say that all desires are not demand.
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संबंधित प्रश्न
Income elasticity of demand for inferior goods is negative.
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 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?
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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 100 on a good priced at Rs 4 per unit. When its price falls by 25 percent, the consumer spends Rs 75 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 a good falls from Rs 10 to Rs 8 per unit, its demand rises from 20 units to 24 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'?
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Explain any 'two methods' of measuring price elasticity of demand.
Discuss any four factors affecting price elasticity of demand.
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.
Define or explain the following concept.
Unitary elastic demand.
Write short note on:
factors determining elasticity of demand .
What is the elasticity of demand?
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.
Explain price elasticity of demand.
Consider the demand for a good. At price Rs 4, the demand for the good is 25 units. Suppose the price of the good increases to Rs 5, and as a result, the demand for the good falls to 20 units. Calculate the price elasticity.
Consider the demand curve D(p) = 10 − 3p. What is the elasticity at price `5/3` ?
The demand for salt is ______.
Fill in the blank with appropriate alternatives given below:
Income elasticity of demand for inferior goods is __________.
Fill in the blank with appropriate alternatives given below:
Perfectly elastic demand curve is ________________.
Fill in the blank with appropriate alternatives given below:
The slope of demand curve is _______________ in case of inelastic demand.
State whether the following statement is TRUE and FALSE.
Demand for luxuries is elastic.
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.
Unitary Elastic Demand rarely occurs in practice.
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
Give reason or explain the following statement:
Demand for necessaries is inelastic.
Give reason or explain the following statement:
Demand for goods having snob appeal has elastic demand.
Answer the following question.
If the price of a commodity rises by 40% and its quantity demanded falls from150 units to 120 units, calculate the coefficient of price elasticity of demand for the commodity.
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.
Answer the following question.
When the price of X doubles, its quantity demanded falls by 60 percent. Calculate its price elasticity of demand. What should be the percentage change in price so that its quantity demanded doubles?
Arrange the following coefficients of price elasticity of demand in ascending order:
(−) 3.1, (−) 0.2, (−) 1.1
Give economic term:
Elasticity resulting from infinite change in quantity demanded.
Give an economic term:
Elasticity resulting from a proportionate change in quantity demanded due to a proportionate change in price.
- 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.
The concept of elasticity of demand was introduced by
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 |
If a good takes up a significant share of consumers' budget, its demand will be ______.
Elasticity of the demand is available when:
Assertion (A): The elastic demand curve for luxuries is flatter than normal.
Reason (R): The coefficient of Elasticity ranges between 0 and 1.
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.
Explain the concept of price elasticity demand.
Explain the term elasticity of demand.
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 ______.
Define elasticity of demand.
When is the demand for a good said to be elastic?
What is meant by elastic demand?
