Question 1. Economists make decisions by thinking in terms of alternatives. Why do economists believe there is no such thing as a free lunch?
Question 2. Another situation to think about: Should Michael Phelps mow his own lawn? Suppose Michael can mow his lawn in 30 minutes (due to his athletic ability) or he can hire a gardener who can do the same job in 2 hours. Should the fastest person do the job?