Shift to the left

• • Decrese in qty dd is indicated by a shift to the left . (contraction)
• • The original curve is D which shifts to the left (down) to D1.
  • The qty dd decreases from Q0 to Q1 even if the price remains the same.

  
• Factors that cause shift to the left

  1. Decrease in income level of the consumer
  2. Decrease in population
  3. Decrease in price of substitute goods
  4. Increase in price of complementary goods.
  5. Negative change in consumers taste,fashions and preferences that do not favour the commodity.