What is the concept of complementary goods in economics and how do they impact consumer behavior and market dynamics?

Complementary goods are products that are used together, such as peanut butter and jelly. When the price of one complementary good changes, it can affect the demand for the other. This impacts consumer behavior by influencing their purchasing decisions. In the market, changes in the price or availability of complementary goods can lead to shifts in demand and supply, affecting market dynamics.