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प्रश्न
What do you mean by an ‘inferior good’? Give some examples.
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उत्तर
Inferior good: Those goods that share an inverse relationship with their prices and with the income of a consumer are called inferior goods. That is,
If the price of a good (Px) increases, then thedemand for good (Dx) decreases.
If a consumer’s income (M) increases, then the demand for good (Dx) decreases.
Examples: Coarse cereals, bidis etc.
संबंधित प्रश्न
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.
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.
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'?
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.
What is the elasticity of demand?
What do you mean by substitutes? Give examples of two goods which are complements of each other.
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.
State whether the following statement is TRUE and FALSE.
Perfectly inelastic demand curve is parallel to the X axis.
Define or explain the following concept:
Unitary Elastic Demand
Give reason or explain the following statement:
Concept of Elasticity of Demand helps trade union leaders.
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.
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) : 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.
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 of demand.
