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प्रश्न
Write Short note on the following.
Ratio method of measuring price elasticity of demand ?
उत्तर
(i) Dr. Alfred Marshall, developed the Proportionate method of measuring price elasticity of demand. It is also known as ratio method or arithmetic method or percentage method of measuring price elasticity of demand.
(ii) Formula:
Ep = (Proportionate change in the quantity demanded ) ÷ (Proportionate change in the price)
(iii) Symbolical form of proportionate method of measuring elasticity of demand.
Ep = [(∆Q) × P] ÷ [(∆P) × Q]
संबंधित प्रश्न
Explain any two factors that affect the price elasticity of demand. Give suitable examples.
A 5 percent fall in the price of a good raises its demand from 300 units to 318 units. Calculate its price elasticity of demand.
Explain the effect of the following on the price elasticity of demand of a commodity:
(i) Number of substitutes
(ii) Nature of the commodity
When price of a commodity falls by Rs 1 per unit, its quantity demanded rises by 3 units. Its price elasticity of demand is (−) 2. Calculate its quantity demanded if the price before the change was Rs 10 per unit.
Match the following :
| Group 'A' | Group 'B' |
| (a) Demand and price | (1) wages |
| (b) Perfectly elastic supply | (2) Vertical supply curve |
| (c) Land | (3) Transfer income |
| (d) Unemployment allowance | (4) Horizontal supply curve |
| (e) Reserve Bank of India | (5) Inverse relation |
| (6) Rent | |
| (7) 1935 | |
| (8) Direct relation |
State whether the following statement is true or false :
Concept of ‘elasticity of demand’ is useful for the finance minister.
Choose the correct answer :
Perfectly elastic demand curve is _________.
Choose the correct answer :
Demand of labour is _______
State whether the following statements are TRUE or FALSE :
The demand of foodgrains is inelastic.
Choose the correct answer :
The account in which the specific amount is deposited per month regularly is known as _________.
Match the following:
|
Group A
|
Group B
|
|
1. Cars and petrol
|
a. Elastic demand
|
|
2. Point method
|
b. Complementary
|
|
3. Necessary goods
|
c. Geometric method
|
|
|
d. Inelastic demand
|
The coefficient of price elasticity of demand for Good X is (−) 0.2. If there is a 5% increase in the price of the good, by what percentage will the quantity demanded for the good fall?
State whether demand will be Elastic or Inelastic. Give reasons for your answer.
The demand for salt by households.
State whether demand will be Elastic or Inelastic. Give reasons for your answer.
A consumer prefers to postpone the purchase of a car to avail more of year ending discount.
Elasticity of demand for two goods A and B is -2 and -3 respectively. Then good A has higher elasticity.
The government wants to reduce the consumption of good by 10%. The price elasticity of demand for elasticity is -0.4. The government should raise the price of elasticity by ______.
What is the implication of a vertical demand curve?
The price of Y falls from ₹ 8 to ₹ 6. The quantity demanded increases from 100 units to 125 units. The price electricity of demand will be ______.
When the price elasticity of demand for a good equals ______.
Which of the following is the most likely reason for the relatively high elasticity of bottled water?
Assertion (A): The demand for soap, salt, matches etc. is highly elastic.
Reason (R): The demand for soap, salt, matches etc. is highly inelastic because the consumer spends a very small amount of expenditure in relation to his/her income.
Assertion (A): Demand for a commodity with large number of substitutes with be less elastic.
Reason (R): With large number of substitutes, even a small rise in its price will induce the buyers to go for its substitutes.
The nature of a commodity determines its price elasticity of demand. Explain.
How does the availability of substitutes of a commodity affect its price elasticity of demand?
When will the demand curve be parallel to x-axis?
Comment upon the shape of the demand curve, if Ed = 0.
State 3 factors which affect price elasticity of demand.
Discuss any three/ four factors determining price elasticity of demand.
How does the nature of a commodity affect its price elasticity of demand?
How does the nature of a good affect its elasticity of demand?
