Which of the following factors is likely to lead to an increase in the quantity demanded of pens?

Question

Quizplus · Accepted Answer

A fall in the price of pens would make pens relatively cheaper compared to other goods, leading consumers to buy more pens hence, increasing the quantity demanded.

Answer: B 
 A fall in the price of paper would not directly affect the demand for pens. The two goods are not complements or substitutes, hence a fall in the price of one would not affect the other.

Answer: C 
 A rise in incomes of all consumers would increase their purchasing power and ability to buy more goods, including pens. This would lead to an increase in the quantity demanded of pens.

Answer: D 
 A fall in income of all consumers would reduce their purchasing power and ability to buy goods, including pens. This would lead to a decrease in the quantity demanded of pens.

Which of the Following Factors Is Likely to Lead to an Increase