Question

A negative cross-price elasticity of demand between two products would indicate they are

Answer 1

A negative cross price elasticity of demand between two products would indicate that they are Complementary goods. As the price of one good increases demand for other good decreases.

Complementary goods are those goods, which are consumed together. eg- Bread and Butter, Pen and Ink etc.

if the price of butter has increased, people will demand less for Bread (because without Butter there will not be any or less consumption of Bread). That's why Complementary goods have negative cross price elasticity of demand.