A semi-serious discussion of a real-world experiment in getting rid of driving licenses:
Those of us who are econ geeks will know about the Pelzman Effect. Regulations that supposedly make us safer (say, seatbelts or cycling helmets) don’t actually make us safer as behaviour changes to take account of the new safety. Almost as if there’s what we consider to be an acceptable risk to take and reducing it in one manner just allows us to be silly in another so as to maintain that risk we’re comfortable with. What I didn’t know (but better econ geeks than I might have done already) is that there is a Reverse Pelzman Effect.
Exploiting an interesting natural experiment, the authors of that paper are able to show that we should abolish driving licences. The various States of Mexico found that bribery was impossible to avoid when attempting to gain a licence. So, to varying degrees, they changed their issuance system, some deciding simply not to have them any more. So, of course, death rates from car accidents went up, didn’t they?
Erm, actually, no, they didn’t. Those places that didn’t bother with licences any more, allowing absolutely anyone at all to get in and drive, saw no change in such death rates any different from those that had now (well, hopefully) incorruptible issuance systems.
