Match the following. List-I List-II a. Contraction of demand 1. Non-price change effect b. Decrease in demand 2. Demand curve remains the same c. Increase in demand 3. Price change effect d. Expansion of demand 4. Shifts the demand curve

a-3, b-1, c-4, d-2
a-4, b-3, c-2, d-1
a-1, b-2, c-3, d-4
a-2, b-4, c-1, d-3

The correct answer is: C. a-1, b-2, c-3, d-4

  • a. Contraction of demand is a decrease in the quantity demanded of a good or service at any given price. It is caused by a non-price change effect, such as a change in consumer income, a change in the price of a substitute good, or a change in the price of a complementary good.
  • b. Decrease in demand is a decrease in the demand curve, which means that the quantity demanded at any given price is lower. It is caused by a price change effect, such as an increase in the price of the good.
  • c. Increase in demand is an increase in the quantity demanded of a good or service at any given price. It is caused by a non-price change effect, such as an increase in consumer income, a decrease in the price of a substitute good, or an increase in the price of a complementary good.
  • d. Expansion of demand is an increase in the demand curve, which means that the quantity demanded at any given price is higher. It is caused by a price change effect, such as a decrease in the price of the good.

Here is a diagram that illustrates the difference between a decrease in demand and a contraction of demand:

[Diagram of a demand curve with a decrease in demand and a contraction of demand]

The blue line represents the original demand curve. The red line represents the new demand curve after a decrease in demand. The green line represents the new demand curve after a contraction of demand.

As you can see, a decrease in demand results in a movement along the demand curve, while a contraction of demand results in a shift of the demand curve.