A couple of weeks ago I wrote a post about the difficulty many people have grasping the logic of collective action problems — where the outcome of an interaction is bad, but where no individual has an incentive to stop doing the thing that is leading to that bad outcome (here).
I’m reminded of this problem every morning these days, since vaccination has been in the news, first with the NHL players, and now with a measles outbreak in Toronto. The debate over vaccination is a perpetual source of frustration for me, because people insist on treating parents who refrain from vaccinating their children as irrational, whereas in most cases they are not being irrational, they are actually free riding, which is perfectly rational, in at least one sense of the term (i.e. the one used by economists). Thus they should be criticized for acting immorally, as opposed to irrationally.… Continue reading