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Debated renewed over studded tire ban or tax

May 5, 2010

By Patrick Emerson
Oregon Economics Blog

The always entertaining (and bike commuting – isn’t that oh so Portland?) commuter columnist for The Oregonian, Joseph Rose, has touched on another of the numerous third rails of Oregon politics: studded tires (self-serve gas is another – but once the economy recovers, I am back on my high horse about it).  He wonders whether, given the extreme wear and tear the tires impose on roads, these tires should be banned in Oregon and he reports on a real effort to have such a ban enacted.  Apparently Minnesota and Wisconsin have bans in place. [I lived for many years in Wisconsin and never though much about studded or even winter tires as most folks just drive more slowly and carefully to account for the weather.  I was always amused to come to Oregon for my winter break and hear the clickety-clack of studs on dry pavement.]

Rose reports that the studs do $40 million dollars of annual damage statewide and you can see the effects on the highways. There was a time when I was an undergrad at Lewis & Clark that I could drive back to campus from downtown on I-5 and not steer.  My little VW Rabbit would just track up the curves in the ruts (I was young and poor and delighted in the cheap amusements).  Besides, rubber snow tires are almost as good without the extra wear and tear so there is little reason to allow them.

In fact he has a poll that asks that question: should studded tires be banned in Oregon? [At last looks like about 3 to 1 in favor of a ban]

But to an economist the optimal solution is obvious and it is not a ban.  There are probably some folks out there for whom studded tires are very, very useful (or at least they think they are) and for those folks a ban would be a real hardship, but for most folks they aren’t really doing that much.  But given the added wear and tear the impose on roads it is efficient to include in the price of the tires the cost of the added damage to roadways.  Given the $40 million figure mentioned above, it is clear that there are estimates of the actual monetary damage they do.  Now, if they are reducing accidents you have to factor this in as well, but my guess is that this is probably actual outweighed by the additional accidents on wet roads on which studded tires are much worse.

Regardless, the true net additional cost of studded tires is not that hard to estimate.  A Pigovian tax that adds to the purchase price of tires the external costs they impose will return efficiency to the market.  Only those who really do value the tires will buy them after the tax is imposed, and the taxes they pay will provide revenue to fix rutted roads more quickly.

There you go, problem solved.  You are all welcome.

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Discuss this article

Joe May 5, 2010

What’s the cost of driving up 99E along the river from Oregon City to Canby, spinning out on the ice and getting killed? The real question is “why do people use studded tires”. It costs what it costs, that is the purpose of the gas tax, to keep the roads in good repair. How many lives are you willing to sacrifice for that money?

Matthew May 5, 2010

So Joe, are you supporting an increase in the gas tax and then indexing it to inflation?
I hope so. On top of the studs do pointless damage, vandalism really. The vandals should pay.

Feeble May 5, 2010

Is not the safety worth it for the driver at whatever cost?

Campaign Getting In Gear In Oregon To Get Studded-Tire Ban Passed | Tire Law May 5, 2010

[…] Another Oregon columnist, Patrick Emerson of The Oregon Business Report, seemed amused about the brouhaha. […]

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