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Question
What do you mean by substitutes? Give examples of two goods which are complements of each other.
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Solution
Those goods that can be consumed in place of other goods are called substitute goods. Example: Tea and coffee are goods that can be substitutes for each other. If the price of tea increases, then the demand for tea will decrease and people will substitute coffee for tea, which will increase the demand for coffee.
The demand for a good moves in the same direction as the price of its substitutes.
Price of tea (PT) increases →Demand for tea (DT) decreases →Demand for coffee (DC) increases.
RELATED QUESTIONS
Explain the factors determining the elasticity of demand.
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.
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?
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 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.
Write a short note on factors determining elasticity of demand.
What is the elasticity of demand?
State whether the following statement is TRUE and FALSE.
Unitary Elastic Demand rarely occurs in practice.
Define the following concept:
Cross Elasticity of Demand
Write short answer for the following question :
Total outlay method of measuring price elasticity of demand.
Define price elasticity of demand.
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.
What are the degrees of price elasticity of Demand?
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 |
State with reasons whether you agree or disagree with the following statement:
The elasticity of demand gets influenced by the nature of the commodity.
Define elasticity of demand.
Who introduced the concept of elasticity of demand?
