Like anyone who grew up playing with GI Joes, I still find military hardware neat—an enthusiasm tempered only by the massive costs involved. Most folks are familiar with the mental model of “guns or butter,” but this idea was plainly lost on the BBC in this article on the two new aircraft carriers to be laid down in Scotland. According to the BBC, these two great efforts will “create” thousands of jobs. Simply put, they will do nothing of the sort. True, we will observe thousands of Scots heading to the yards, but what we will not see are the thousands of others who would have been going to work somewhere else, had a portion of society’s scarce resources not been redirected towards these floating behemoths.
While a society certainly needs protecting, and the freedom of the seas is essential to global prosperity, such projects do not “create” jobs—they simply redirect them from somewhere else. Economists classify the BBC’s mistake as the fallacy (sometimes parable) of the broken window. In the fallacy of the broken window, some punk kid breaks a baker’s window. A bystander quickly remarks that the damage is a good thing, stating authoritatively that the breaking of the window will boost employment by providing work for a glazer. What the bystander does not see are all the other things the baker may have done with the resources now dedicated to re-glazing. You are probably thinking that this makes perfects sense (and that is because it does). However, as you listen to the news coverage of the aftermath of Hurricane Gustav or even the presidential race (politicians love to talk about “creating” jobs), I can guarantee that some candidate or pundit will count the devastated homes and commit the fallacy of the broken window. The fallacy of the broken window is translated into MBM through our mental model of opportunity cost. Opportunity cost defines the cost of something not as mere dollars and cents, but whatever else could have been done with the time or resources at hand. Every “created” job must be paid for with another job (or jobs) somewhere else. Unfortunately, the victims never know what has happened to them, nor do they see the broken window that has put them out of work.
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