It is not necessarily associated with a monetary cost, and can be applied to any decision of value. For example, a person could choose to eat pizza instead of a salad for lunch. Because they passed up the ''opportunity'' to eat a salad, the salad is an opportunity cost. | It is not necessarily associated with a monetary cost, and can be applied to any decision of value. For example, a person could choose to eat pizza instead of a salad for lunch. Because they passed up the ''opportunity'' to eat a salad, the salad is an opportunity cost. |