Pay-As-You-Drive Car Insurance

The new issue of Democracy: A Journal of Ideas (registration, but easy and free) is very interesting.  Here is one proposal, from Jason Bordoff:

Drivers who are
similar in all respects–age, gender, driving record–pay roughly the
same premiums whether they drive 5,000 or 50,000 miles per year, even
though the likelihood of a collision increases with each mile. This
“all-you-can-drive” pricing scheme imposes significant costs on
society: more traffic accidents, congestion, air pollution, greenhouse
gas emissions, and dependence on oil.

the effect of PAYD on miles traveled and gasoline
consumption would be significant: a 6.5 percent reduction under
conservative estimates, and others suggest the reduction could be as
high as 10 percent. To put that in perspective, it would take an
81-cent-per-gallon increase in the gas tax to achieve a 6.5 percent
reduction in miles driven.

Monitoring costs seem workable, at least in principle with computerized odometers, so why don’t companies do this? 


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