Factors causing Shift in Demand curve

 

Factors causing Rightward and Leftward Shift in the Demand curve

Factors Causing Shift in Demand	Rightward Shift	Leftward Shift
Change in the income of the consumer	Increase in income in case of normal goods but a decrease in income in case of inferior goods.	Decrease in income in case of normal goods but increase in income in case of inferior goods.
Change in price of related goods	A rise in the price of substitute goods but fall in the price of complementary goods.	Fall in price of substitute goods but a rise in the price of complementary goods.
Change in taste and preference	Favorable changes in taste and preference.	Unfavorable change in taste and preference.
Change in advertisement	Rise in advertisement expenditure.	Fall in advertisement expenditure.
Change in size of population	Increase in size of the population.	Decrease in size of the population.
Change in income distribution	More equal distribution of income.	More on equal distribution of income.
Price expectations	The expectation of a rise in the price for shortage or increase in future income.	The expectation of fall in price or fall in future income.
Availability of credit	More availability of credit provision.	No or less availability of credit provision.