Anyone who takes a course in economics will quickly learn about a simple concept called “opportunity cost.” But beware; once you incorporate opportunity cost into your daily life, things will never be the same.
Opportunity cost is based on the fact that every minute of every day, whether we want to or not, we are deciding how to use our time. For example, if a man decides to sit down in a chair and watch a football game for three hours, he misses out on the benefits of some other activity that he could have experienced during that three hours. The benefits of the “next best” activity that is forgone is called opportunity cost. For example, if the next most beneficial thing the man could have done during the football game was to split wood for his winter heat, watching the football game may cost him some warmth when the cold January winds blow.
But opportunity cost is not just about work, nor is it about money. If a housewife decides to spend an hour doing the laundry and the next most beneficial use of her time would have been to take a nap, the benefits of the rest are the opportunity cost of doing the laundry. Even people engaged in leisure face the ever-present dilemma of opportunity cost; the person that jogs for an hour gives up the enjoyment of playing tennis during that hour, and so on.
Because our lives are like a candle, each one with a certain time to burn before the flame is extinguished; opportunity cost is an obsession for many economists, including me. The other day my wife and I helped a neighbor pack for a move to a new apartment. I was astounded to find that he probably owned 200 movie DVD’s! As I packed them into boxes my first thought was that at $15 each, he had probably spent nearly $3,000 for these movies. But then, my economist brain focused in on the real cost of those DVD’s; the benefits that he could have received by spending between 500 and 700 hours doing something else. After all, if a person worked a 40 hour week, he would have to work nearly 18 weeks to “spend” 700 hours. With 700 hours, the young man could have taken a complete semester of college courses, or spent time playing tennis, or taken dancing lessons, or learned to cook, or gone on numerous vacations, etc.
It seemed to me that the young fellow had spent nearly 700 hours of “consumption” time watching movies, when he could have benefited greatly by using some of those hours in “investment” time (activities spent educating himself or otherwise improving his future prospects for success). Why did he instead spend all of this time watching movies? First of all, he enjoys movies immensely, so he should spend some time watching them. But secondly, I suspect that he ignored the fact that there were some really beneficial alternative uses for his spare time. Don’t get me wrong, if watching 700 hours of movies gave him more satisfaction than anything else he could have done during every one of those 700 hours, the young man should have watched 700 hours of movies. I suspect, however, that even he would acknowledge that he would have been better off if he had watched a few less movies and reaped the benefits that would have come to him using at least some of his time doing something else.
One reason that we economists are a bit “wacky” is that any time we contemplate doing anything, we think about the opportunity costs of our time. If we are about to embark on activity A, we first consider if activity B, C, or D would be a better use of our time. We then engage in the most beneficial of those activities. At the university where I work, the members of our economics department have only one or two department meetings per year. Professors in other disciplines spend many hours annually in weekly “department meetings”, often spending time going over mundane details. We economists use email instead. If information needs to be disseminated or an important issue comes up, we inform each other via email. We share our feedback with each other electronically and even “vote” via email, which enables us to avoid most meetings all together. I’ve often asked myself why professors in other departments don’t operate the way we economists do. I think I know the answer; the minds of economists are programmed to always consider the “opportunity costs” of time spent in meetings, whereas professors in other departments ignore opportunity costs. This also explains why we economists get along so well together; none of us want to spend time dealing with “petty issues” that cause personal strife in so many organizations. After all, time is just too valuable to spend dealing with the “small stuff.”
A word of warning is in order. While employing the concept of opportunity cost in your daily life will make you extremely efficient and I recommend it highly, it may also tend to alienate you from others. It is easy to observe how others spend their time and to become judgmental. Remember that an activity that you deem to be wasteful may be a necessity for someone else. Remember that every person has his or her unique preference schedule for work and leisure, so if you’re a workaholic, you’ll have to remember that the other guy might actually prefer watching a movie to doing anything else. In that case, he should watch his movie and you should shut up!