How do complementary goods, which are products that are typically used together, impact consumer demand and purchasing behavior?

Complementary goods, which are products that are usually used together, can impact consumer demand and purchasing behavior by influencing the demand for each other. When the price of one complementary good changes, it can affect the demand for the other. For example, if the price of coffee increases, the demand for coffee creamer may also decrease because consumers may choose to buy less coffee. This interdependence can lead to changes in consumer behavior and purchasing patterns.