The demand curve for a commodity is more elastic
The demand curve for a commodity is more elastic
- A) the greater the number of goods substitutes available
- B) the greater the proportion of income spent on the commodity
- C) the longer the period of time considered
- D) all of the above
Correct Answer: D) all of the above
Explanation
This Economics question is asking about the elasticity of demand for a commodity. Elasticity of demand is a measure of how sensitive the quantity demanded of a good or service is to changes in its price, income, or availability of substitutes.
The question is asking which of the options makes the demand curve for a commodity more elastic. The correct option is Option D: all of the above. This means that if there are more substitutes available for the commodity, if a greater proportion of income is spent on the commodity, or if the period of time considered is longer, the demand curve for the commodity will be more elastic.
When there are more substitutes available for a commodity, consumers have more options to choose from and if the price of one commodity increases, they can easily switch to a substitute. This makes the demand curve for the commodity more elastic.
When a greater proportion of income is spent on a commodity, consumers are more likely to be sensitive to changes in the price of the commodity. If the price of the commodity increases, consumers may cut back on their purchases or switch to a cheaper substitute. This makes the demand curve for the commodity more elastic.
When the period of time considered is longer, consumers have more time to adjust their consumption patterns in response to changes in the price of the commodity or the availability of substitutes. This makes the demand curve for the commodity more elastic.
In summary, the correct answer is Option D: all of the above because all three factors - availability of substitutes, proportion of income spent on the commodity, and length of time considered - can make the demand curve for a commodity more elastic.