Question

How the demand of a commodity is affected by a fall in the prices of related goods

Answer 1

The fall in price of a related goods will lead to a drop in demand of that particular good.

As the prices of relaed goods drop, people tend to move to to the lesser price goods and we find a fall in demand of the good in question.

In case of a fall in the price of substitute goods, the demand for the good in question falls.

Whereas a fall in the price of complementary goods leads to an increase in the demand for the good in question.