Suppose you are having lunch with your best friend who just enrolled in an economics class. He is complaining about how irrelevant the class is, commenting that he sees no useful purpose for economics. According to your friend, "I am a nursing major. I will never use this stuff in the real world." Having just completed the same course in economics, you try to explain to your friend that economics affects everyone! How would you explain to this person that economics is a daily part of his personal and professional life?