An increase in the price of one good can cause the demand for another good to increase if the goods are substitutes.
If the price of a good increases,consumers will respond by buying more of the relatively cheaper alternative (substitute).

Question

Quizplus · Accepted Answer

This is the definition of substitute goods. As the price of one good increases, consumers will switch to the substitute good, causing an increase in demand for it.

An Increase in the Price of One Good Can Cause