Are pizza and sausage substitutes or complements?

Here's why:

* Increased Demand: When the price of pizza goes down, the demand for sausage (a common pizza topping) tends to increase. This is because people are more likely to buy pizza and add sausage to it when it's more affordable.

* Joint Consumption: Pizza and sausage are often consumed together. They are frequently paired in recipes and are considered a classic combination.

* Increased Utility: The combination of pizza and sausage provides a greater overall satisfaction (utility) to consumers than either item consumed alone.

Therefore, the relationship between pizza and sausage is characterized by complementary goods.