by Professor John R Lott, Jr
University of Chicago Law School
For the Democratic Party the solution to violent crime is clear
- more regulation of guns. The convention speeches by James and
Sarah Brady were filled with moving stories of their personal
suffering.
While the impacts described on both sides of the issue do exist,
the crucial question underlying all gun-control laws is: What
is their net effect? Are more lives lost or saved? do they deter
crime or encourage it? Anecdotal evidence obviously cannot resolve
this debate. To provide a more systematic answer, I recently completed
a study of one type of gun control law-laws on concealed handguns,
also known as "shall-issue" laws. Thirty-one states
give their citizens the right to carry concealed handguns if they
do not have a criminal record or a history of significant mental
illness. My study, with David Mustard, a graduate student in economics
at the University of Chicago, analyzed the FBI's crime statistics
for all 3,054 American counties from 1977 to 1992.
Our findings are dramatic. Our most conservative estimates show
that by adopting shall-issue laws, states reduced murders by 8.5%,
rapes by 5%, aggravated assaults by 7% and robbery by 3%. If those
states that did not permit concealed handgun in 1992 had permitted
them back then, citizens might have been spared approximately
1,570 murders, 4,177 rapes, 60,000 aggravated assaults and 12,000
robberies. To put it even more simply: Criminals, we found, respond
rationally to deterrence threats.
The benefit of concealed handguns are not limited to just those
who carry them or use them in self-defense. The very fact that
these weapons are concealed keeps criminals uncertain as to whether
a potential victim will be able to defend himself with lethal
force. The possibility that anyone might be carrying a gun makes
attacking everyone less attractive; unarmed citizens in effect
"free-ride" on their pistol packing fellows.
Our study further found that while some criminals avoid potentially
violent crimes after concealed-handgun laws are passed, they do
not necessarily give up the criminal life altogether. Some switch
to crimes in which the risk of confronting an armed victim is
much lower. Indeed, the downside of concealed-weapons laws is
that while violent crime rates fall, property offenses like larceny
(e.g. stealing from unattended automobiles or vending machines)
and auto theft rise. This is certainly a substitution that the
country can live with.
Our study also provided some surprising information. While support
for strict gun-control laws usually has been strongest in large
cities, where crime rates are highest, that's precisely where
right-to-carry laws have produced the largest drops in violent
crimes. For example, in counties with populations of more than
200,000 people, concealed handgun laws produced an average drop
in murder rates of more than 13%. The half of the counties with
the highest rape rates saw that crime drop by more than 7%.
Concealed handguns also appear to help women more than men. Murder
rates decline when either sex carries more guns, but the effect
is especially pronounced when women are considered separately.
An additional woman carrying a concealed handgun reduces the murder
rate for women by about three to four times more than an additional
armed man reduces the murder rate for men. Victims of violent
crime are generally physically weaker than the criminals who prey
on them. Allowing a woman to defend herself with a concealed handgun
makes a larger difference in her ability to defend herself than
the change created by providing a man with a handgun. Guns are
the great equalizer between the weak and the vicious.
At the Democratic convention, President Clinton played up his
proposed expansion of the 1994 Brady Law, which by making it harder
for men convicted of domestic violence to obtain guns is designed
to reduce crime against women. Our study is the first to provide
direct empirical evidence of the Brady Law's effect on crime rates-and
we found just the opposite result: The law's implementation is
associated with MORE aggravated assaults and rapes. Mrs. Brady's
exaggerated estimates of the number of felons denied access to
guns are a poor measure of the law's impact on crime rates.
We also collected data on whether owners of concealed handguns
are more likely to use them in committing violent crimes. The
rarity of these incidents is reflected in Florida's statistics:
More than 300,000 concealed-handgun licenses were issued between
October 1, 1987 and December 31, 1995, but only five violent crimes
involving permitted pistols were committed in this period, and
none of these resulted in fatalities. That's 1/200 of 1% misuse
rate for permitted pistols in an eight year period or LESS than
1/1000 of 1% misuse rate per year.
What about minor disputes such as traffic accidents? Are legal
owners of concealed handguns more likely to use them in such situations?
In 31 states, some of which have had concealed weapons laws for
decades, there is only one recorded incident (earlier this year
in Texas) in which a concealed handgun was used in a shooting
following an accident. Even in that one case, a grand jury found
that the shooting was in self-defense: The shooter was being beaten
by the other driver.
And what about accidental deaths? The number of accidental handgun
deaths each year is fewer than 200. Our estimates imply that if
the states without "shall issue" laws were to adopt
them, the increase in accidental handgun deaths would be at most
nine more deaths per year. This is small indeed when compared
to the at least 1,570 murders that would be avoided.
While no single study is likely to end the debate on concealed
handguns, ours provides the first systematic national evidence.
By contrast, the largest prior study examined only 170 cities
within a single year. The nearly 50,000 observations in our data
set allow us to control for a range of factors that have never
been accounted for in any previous study of crime, let alone any
previous gun-control study. Among other variables, our regressions
control for arrest and conviction rates, prison sentences, changes
in handgun laws such as waiting periods and the imposition of
additional penalties for using a gun to commit a crime, income,
poverty, unemployment, and demographic changes.
Preventing law-abiding citizens from carrying handguns does not
end violence, but merely makes them more vulnerable to attack.
The very size and strength of our results should at least give
pause to those who oppose concealed handguns. The opportunity
to reduce the murder rate by simply relaxing a regulation ought
to be difficult to ignore.
(Mr. Lott is a professor at the University of Chicago Law School.
The results of his study will be published in the January 1997
issue of the University's Journal of Legal Studies.)
You can write Professor Lott directly at:
The Law School
Professor John R Lott, Jr
The University of Chicago
1111 East 60th Street
Chicago, IL 60637