Question

Explain the shift in the demand curve.

Answer 1

A shift in the demand curve happens when the amount demanded varies at each conceivable price, not due to a change in the commodity's price, but due to changes in other factors influencing demand. This results in the construction of a whole new demand curve, either to the right (increased demand) or to the left (decreased demand) of the original one.

1. Increase in Demand (Rightward Shift): An increase in demand occurs when a larger amount of an item is demanded at the same price or at a higher price. This is shown as a rightward shift of the demand curve from D to D1.
   
   Causes of Increase in Demand:
   1. Increase in consumer income (normal goods).
   2. Favorable change in tastes and preferences.
   3. Increase in the price of substitute goods.
   4. Decrease in the price of complementary goods.
   5. Expectation of a future price rise.
   6. Increase in the number of consumers.
   7. Positive changes in consumer expectations.
2. Decrease in Demand (Leftward Shift): A decrease in demand occurs when fewer units are demanded at the same price or when the same units are demanded at a lower price. This is shown by a leftward shift on the demand curve from D to D'.
   
   Causes of Increase in Demand:
   1. Decrease in consumer income (normal goods).
   2. Unfavorable change in tastes and preferences.
   3. Decrease in the price of substitute goods.
   4. Increase in the price of complementary goods.
   5. Expectation of a future price fall.
   6. Decrease in the number of consumers.
   7. Negative changes in consumer expectations.