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Archive for July 29th, 2011

Killer Cars: An Extra 1,000 Pounds Increases Crash Fatalities by 47%

Ever since the SUV craze began in the late 1980s, we’ve all known that heavier vehicles are safer for those driving them, but more dangerous for others on the road. Which is why we all started driving them. Now, in a new working paper, a pair of Berkeley economists have quantified not only the fatality risks of heavier cars for other drivers, but also the costs associated with them. Here’s the abstract:

Heavier vehicles are safer for their own occupants but more hazardous for the occupants of other vehicles. In this paper we estimate the increased probability of fatalities from being hit by a heavier vehicle in a collision. We show that, controlling for own-vehicle weight, being hit by a vehicle that is 1,000 pounds heavier results in a 47% increase in the baseline fatality probability. Estimation results further suggest that the fatality risk is even higher if the striking vehicle is a light truck (SUV, pickup truck, or minivan). We calculate that the value of the external risk generated by the gain in fleet weight since 1989 is approximately 27 cents per gallon of gasoline. We further calculate that the total fatality externality is roughly equivalent to a gas tax of $1.08 per gallon. We consider two policy options for internalizing this external cost: a gas tax and an optimal weight varying mileage tax. Comparing these options, we find that the cost is similar for most vehicles.



Inmates Cash in on Prison Phone Glitch

From Arelis R. Hernández at the Orlando Sentinel comes a hilariously idiotic story of a jail in Lake County, Florida, where rather than having money withdrawn from their accounts, inmates were paid to make phone calls. So much so that one man bonded out after making 77 calls and having $1,250 deposited into his account. He ended up turning himself in a few hours later.



FREAK-est Links

Georgia’s shriveling peach economy, one-third of Michigan teachers feel pressured to cheat, the annual Big Mac index, a public library incentive scheme, and why West Virginia is awash in car crashes the week after a televised NASCAR race.