Featured Research

from universities, journals, and other organizations

Zero Tolerance, Zero Effect, Says Expert

Date:
September 17, 2009
Source:
Sam Houston State University
Summary:
Zero tolerance laws have zero effect, says one expert, who analyzed data from 30,000 fatalities in nighttime accidents involving drivers under 21.

As college administrators, social scientists and law enforcement officials across the country continue to debate whether the drinking age should be 18 instead of 21, a Sam Houston State University economist challenges a related law: the "zero tolerance" policy.

Related Articles


Darren Grant says zero tolerance laws have zero effect.

In a paper forthcoming in the journal Economic Inquiry, he analyzed data from 30,000 fatalities in nighttime accidents involving drivers under 21.

"Both in terms of the number of accidents and the blood alcohol of the drivers in those accidents, the research consistently showed that zero tolerance laws had no effect," Grant said. "Other factors matter, but not these laws."

Zero tolerance laws became prevalent during the 1990s, when the U.S. Congress threatened to withhold highway funding from states that didn't comply.

Grant says the logic behind zero tolerance laws is suspect.

"The idea was, since drivers under 21 are not supposed to be drinking, you should be guilty of drunk driving if you are caught driving with any amount of alcohol in your system," Grant said.

"Because you must sacrifice more to comply with the law, we should expect some people will just give up trying to satisfy the law and drink more," he said.

But Grant found this did not happen.

"Instead, among drivers involved in traffic accidents, there is the same fraction of heavy drinkers, the same fraction of mild drinkers, the same fraction of nondrinkers," he said. "It's just not changing."

Grant also compared the blood alcohol distributions of involved drivers in the two years before zero tolerance laws were established in each state, and again in the two years after. The two distributions were also virtually identical.

"That's a sign that this law is essentially inert; if it's affecting the amount of drinking that people do, these distributions should look different," he said. Grant's colleague at Sam Houston State and fellow economist, Donald Freeman, completed a similar study in 2007 that yielded similar results regarding a related law that lowered the allowable blood alcohol limit for adult drivers. That paper was published in the journal Contemporary Economic Policy.


Story Source:

The above story is based on materials provided by Sam Houston State University. Note: Materials may be edited for content and length.


Cite This Page:

Sam Houston State University. "Zero Tolerance, Zero Effect, Says Expert." ScienceDaily. ScienceDaily, 17 September 2009. <www.sciencedaily.com/releases/2009/09/090916173336.htm>.
Sam Houston State University. (2009, September 17). Zero Tolerance, Zero Effect, Says Expert. ScienceDaily. Retrieved March 2, 2015 from www.sciencedaily.com/releases/2009/09/090916173336.htm
Sam Houston State University. "Zero Tolerance, Zero Effect, Says Expert." ScienceDaily. www.sciencedaily.com/releases/2009/09/090916173336.htm (accessed March 2, 2015).

Share This


More From ScienceDaily



More Mind & Brain News

Monday, March 2, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

This Nasal Treatment Could Help Ease Migraine Pain

This Nasal Treatment Could Help Ease Migraine Pain

Newsy (Mar. 2, 2015) Researchers gave lidocaine to 112 patients, and about 88 percent of the subjects said they needed less migraine-relief medicine the next day. Video provided by Newsy
Powered by NewsLook.com
How Facebook Use Can Lead To Depression

How Facebook Use Can Lead To Depression

Newsy (Mar. 1, 2015) Margaret Duffy of the University of Missouri talks about her study on the social network and the envy and depression that Facebook use can cause. Video provided by Newsy
Powered by NewsLook.com
The Best Foods to Battle Stress

The Best Foods to Battle Stress

Buzz60 (Feb. 26, 2015) If you&apos;re dealing with anxiety, there are a few foods that can help. Krystin Goodwin (@krystingoodwin) has the best foods to tame stress. Video provided by Buzz60
Powered by NewsLook.com
Sleeping Too Much Or Too Little Might Increase Stroke Risk

Sleeping Too Much Or Too Little Might Increase Stroke Risk

Newsy (Feb. 26, 2015) People who sleep more than eight hours per night are 45 percent more likely to have a stroke, according to a University of Cambridge study. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins