Advertisements
Advertisements
प्रश्न
Explain the factors determining the elasticity of demand.
State the factors determining elasticity of demand.
Explain factors that determine elasticity of demand of a commodity.
Explain any four factors determining the price elasticity of demand.
Advertisements
उत्तर
The following are the factors influencing the elasticity of demand:
- Nature of the commodity: Demand tends to be relatively elastic for luxuries and comforts such as “air conditioners.” And demand is inelastic for necessary items such as salt. Generally, all commodities can be dividend into three categories i.e.,
- Necessaries of Life: Essential items required for basic survival, like food, water, and shelter.
- Conventional Necessaries: Items that are not essential but are considered important for a comfortable life, like clothing and household appliances.
- Luxury Commodities: High-value items that provide comfort and status, like designer clothes, expensive cars, and jewellery.
- Availability of substitutes: The greater the number of substitutes available for a commodity, the greater the elasticity of demand for that commodity. In other words, the demand for a product that has close substitutes is relatively elastic. However, salt has no substitute, and therefore, its demand is always inelastic.
- Composite Commodities: A commodity having several uses tends to be more elastic in demand. For example, electricity can be used for several uses, such as lighting, cooking, heating, etc however, a single-use commodity has an inelastic demand.
- Urgency: If wants are more urgent, demand becomes relatively inelastic. If wants can be postponed, demand becomes relatively elastic.
- Habits: Habits make the demand for certain goods inelastic, for example, cigarettes, drugs, and liquor.
- Income: Demand for goods is usually inelastic if the consumer has a high income.
- Postponement of Consumption: The demand is elastic if we can postpone the purchase of goods and services, such as in the case of electronic goods. But the purchase of essential items like food grains, salt, etc., cannot be postponed, and therefore, the demand for such goods is inelastic.
- Complementary Goods: When a good is linked with the use of other goods, demand may be inelastic or elastic depending on the demand for complementary goods. For example, the demand for petrol or diesel depends on the use of automobiles, agricultural equipment like water pumps, etc.
- Durability: The demand for durable goods is relatively elastic. For example, furniture, washing machines, etc. Demand for perishable goods is inelastic. For example, milk, vegetables, etc.
Notes
Students should refer to the answer according to their question and preferred marks.
APPEARS IN
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.
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?
A consumer buys 18 units of a good at a price of Rs 9 per unit. The price elasticity of demand for the good is (–) 1. How many units the consumer will buy at a price of Rs 10 per unit? Calculate.
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.
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 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.
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
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?
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'?
Explain any 'two methods' of measuring price elasticity of demand.
Discuss any four factors affecting 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 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.
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.
Fill in the blanks with appropriate alternatives given in the bracket.
Demand elasticity can be measured from demand curve by ___________ method.
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` ?
Give reason or explain the following statement.
All desires are not demand.
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.
Total outlay is price multiplied by quantity.
Define the following concept:
Cross Elasticity of Demand
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:
Demand for habitual goods is inelastic.
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.
Draw a diagram to show the elasticity of demand when it is greater than one.
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 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
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 a good takes up a significant share of consumers' budget, its demand will be ______.
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 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 ______.
When change in price is greater than the change in quantity demand it is a case of elastic demand.
- Luxuries goods have generally elastic demand.
- Goods whose close substitutes are available have inelastic demand.
What is meant by elastic demand?
Who introduced the concept of elasticity of demand?
Which type of good typically has inelastic demand?
What is unit elasticity of demand?
