If potatoes are to corn as peanut butter is to ____?

In economics, we often talk about substitutes and complements to understand how different goods relate to each other. Potatoes and corn can be seen as substitutes because both are types of food that can serve similar purposes in meals. Similarly, peanut butter can be compared to jelly, as both are common spreads that people often use together on sandwiches. Just like you might choose between potatoes and corn based on what you have or prefer, you might choose between peanut butter and jelly based on your taste or what you're making. Therefore, if potatoes are to corn, then peanut butter is to jelly, highlighting how these pairs of items can replace or complement each other in our diets.