Some commentators (including me) have argued that a declining economy will spur a rise in the crime rate.
Yet in a recent Associated Press report, "NYC Mayor: No Link Between Violent Crime, Economy," New York City Mayor Michael Bloomberg said he didn't "believe a bad economy leads to more violent crime." [italics mine]
Notice his use of the word "violent."
To me, that's a good example of the games that politicians play. Instead of speaking about bad behavior in general, which is what most people would probably assume the discussion is -- or should be -- about, he shifts the focus in a way that appears to undermine the original hypothesis.
In truth, as the following Wall Street Journal report, "The Snap Judgment on Crime and Unemployment," indicates, the two go hand-in-hand.
Evidence Suggests That People Don't Suddenly Commit Murder After Losing Their Jobs; But Theft, Yes
On the morning of April 3, 41-year-old Jiverly Wong parked his parent's car next to the back door of an immigrant-services center in Binghamton, N.Y., blocking it shut. Then he walked through the front door with two handguns. He fired 98 shots, killing 13 people and then himself.
Mr. Wong's rampage was one in a string of mass killings from Alabama to California. By an Associated Press tally, eight mass shootings killed 57 people between March 10 and April 7.
In the wake of the killings, commentators and some criminologists have fingered another culprit: the recession, and the job losses it brings.
"A mass killer is someone who has almost always suffered a catastrophic loss -- that's the link between a recession and mass killings," Northeastern University criminologist Jack Levin told Agence France-Presse. "Mass Shootings Kill 53 People in 27 Days. Is Recession to Blame?" read the headline of a story on the Web site of an Alabama television station.
The crime scene in Pittsburgh after a suspect, who had been laid off from a glass factory, shot police officers during a standoff earlier this month.
Mr. Wong, police said, was upset that he lost his job at a shuttered vacuum-cleaner plant. Richard Poplawski, who on April 4 allegedly ambushed and killed three Pittsburgh police officers responding to a 911 call, had been laid off from a factory. Michael McLendon, who killed 10 people on March 10 in southeastern Alabama, was chronically unemployed -- and shot himself after being cornered at a factory where, authorities said, he once had worked and had returned to kill former co-workers.
High unemployment is likely for the rest of 2009. Does that presage a year of violence?
Maybe not.
It seems obvious. The economy sours, people do bad things. But proving the link between crime and unemployment is another matter.
Efforts to do so go back at least to the 1960s, when Nobel laureate Gary Becker proposed that criminals act rationally, turning to illegal behavior when there's little opportunity for honest work.
There was scant empirical evidence for the theory until a decade or so ago, when studies began digging down to local unemployment rates and homing in on the groups of people most likely to commit crimes.
By and large, the studies show that lousy job markets -- particularly for young or unskilled men -- are linked to more thefts. But the connection isn't so plain with violent crimes like murder and rape. That bolsters the theory of a more rational criminal: When the economy flags, people inclined to crime opt for dishonest income; they don't start shooting people.
"There are these anecdotes and stories you can tell -- a guy tied his actions directly to his job," David Mustard, a University of Georgia economist, says of murders. But "statistically, we haven't seen those as much."
Nationwide data on crime rates for all of 2008 aren't yet available -- so it isn't clear what's happening in the current downturn, though some big cities like New York and Chicago have seen drops in crime so far this year.
It doesn't help that crime figures are nettlesome, particularly for broad categories of offenses like larceny that can be affected strongly by the propensity of victims to come forward.
What's more, there's no clear explanation for why crime rates change, even in the broadest sense. Violent crimes -- assault, murder, robbery and rape, by the FBI's definition -- occurred at a rate of 160.9 per 100,000 inhabitants in 1960 and climbed fairly steadily to a peak of 758.1 in 1991, before turning around and dropping as quickly as they rose. So-called property crimes -- auto theft, burglary and larceny -- show a similar but less pronounced pattern.
In a 2002 study, Eric Gould, Bruce Weinberg and Mr. Mustard sliced up nearly two decades of wage, unemployment and crime data, using regression analyses to probe whether economic factors were causing changes in crime rates. The relationships were strong for crimes like burglary and larceny. Violent crimes were harder to pin down.
"You kind of see it for murder, and you kind of don't see it for murder," says Mr. Weinberg, of Ohio State University. He surmises that murders show a weak effect because some -- drug murders, mostly -- are economically motivated as gangs kill to expand their turf.
In a forthcoming paper, Naci Mocan at Louisiana State University studied state-level unemployment and crime data, as well as the histories of a cohort of 27,000 people born in Philadelphia in 1958. For both sets of data, property crimes showed a link to unemployment, while murder and rape had little connection, if any.
It's not just the U.S. A study a decade ago in New Zealand found a significant link between "dishonesty" offenses -- a category including theft, burglary and fraud -- and unemployment, but no parallel link with violent crimes like murder, though rape did show an association.
But what about mass murders? Mr. Levin, the Northeastern University criminologist, says mass murderers fit a different profile than single-victim killers and thus can't easily be compared. "The data, the evidence about violent crime in general, doesn't seem to apply to mass killings," he says. Mass murderers, he adds, are generally a peculiar sort: more likely than single-victim killers to be socially isolated, for instance, and with greater access to guns.
He pointed to an analysis done by a colleague at Northeastern, James Alan Fox. Mr. Fox charted mass murders (defined as homicides with four or more victims) between 1976 and 2007 alongside national unemployment rates. Though the numbers are volatile, he found a "fairly substantial" correlation between the two trends. In 1982, the year of highest joblessness in the period, there were 48 mass murders, the second most in the time span. Still, the year with the most mass murders, 1979, saw relatively low unemployment.
Other academics say such a correlation may or may not be meaningful. To have greater certainty, you'd need to control for factors like demographic changes or drug use that could be tugging at the numbers. Trends that seem to line up "tell you little about the underlying causal relationship," says Mr. Mustard. He points to a study he did on crime and casinos: In the aggregate, crime has fallen in the past decade, and more casinos have been built. But by comparing crime rates in counties that built new casinos to similar counties without casinos, he concluded casinos were actually causing crime.
Mr. Fox admits his analysis isn't controlled, but he says the correlation is bolstered by case studies of mass killers that show many are unemployed.
But it is hard to know whether unemployment is causing the violence, or is merely a symptom of something else that's the true cause. Mr. Poplawski, the alleged shooter of the Pittsburgh police officers, expressed violent tendencies on white-supremacist Web sites; that attitude may have led him to kill the officers -- and also may have made it difficult for him to keep a job.
Binghamton, a city of 45,000, has been hollowed out by factory closings and buffeted by a flight to the suburbs. There was just one murder in 2008, says Mayor Matthew Ryan. "We are a very safe city." Mr. Ryan says the tough economic times had brought with them a big jump in larcenies. When gas prices soared last year, more people drove off from the pump without paying. But, until Mr. Wong's rampage, tough times hadn't brought violence, he says.
And Mr. Wong's case has turned out to be far more complex than a grudge over a lost job. He sent a barely comprehensible letter to a local TV station several days before the shootings. In it, he described various torments supposedly committed by undercover police, including "connect the music into my ear" and "used electric gun shoot at the behind my neck."
"Certainly this individual was seemingly very disturbed in other ways," Mr. Ryan says. "There's an awful lot of people who lost their jobs who haven't committed murder."






Don't forget the conclusions drawn in Freakonomics.
Posted by: Mark Wolfinger | April 15, 2009 at 10:33 PM
Stealing when out of work with no income is understandable
Mass killing I believe to be the result of intense frustration
and hatred of the world and a very low self esteem with a desire
for self destruction (but its hard to uncover the multiple causes)
Posted by: roger | April 15, 2009 at 11:11 PM
"Search" ELF Waves for a possible contributing cause:
http://www.google.com/search?ned=tus&hl=en&q=elf+waves&btnmeta%3Dsearch%3Dsearch=Search+the+Web
Posted by: Peter of Lone Tree | April 16, 2009 at 09:11 AM
There's been a startling rise in violent crimes against children around the country. Hospitals are reporting a surge in child abuse and neglect. Could someone please ask Bloomberg if he thinks "violent crime" includes beating children?
Would someone please ask the WSJ writer who asserts this "murky" link whether or not he/she considers violence against women and children to constitute "violent crime?" I'm just wondering, you know, because domestic violence, child abuse and neglect, and violence against pets are closely linked to financial stress in innumerable studies over many decades. Violence against a spouse or a child constitutes assault; violence against an animal constitutes a crime. They should be reminded of that the next time they ignore this huge problem.
http://www.talkingpointsmemo.com/news/2009/04/rpt-feature-child_abuse_spikes_as_us_economy_found.php
Posted by: mountaineer | April 16, 2009 at 12:27 PM
If Mr. Wong had read your blog today - What would have made him change his mind?
Just wondering.
Posted by: Namke von Federlein | April 16, 2009 at 05:14 PM
I wake up everyday before the sun. The sun rises because of me.
What I'm trying to say is that if there has been any difference in they method used to track unemployment or violent crime over the period of the study then you are really comparing apples and oranges.
Me, I don't need a weatherman to tell me which way the wind blows. I've done my own study and crime is getting worse. You only have to open your eyes to see the obvious.
And I'd expect that as the economy continues to evolve crime, especially property crimes, will increase.
Posted by: Abraham | April 16, 2009 at 08:42 PM
Unemployment is a sad thing to have to bear for the average person. You might have been in middle management, desk, suit and tie, maybe even a company car. You might have been making upwards of 75K plus health and other goodies. Maybe you worked for a RV mfg, or a Jet-Ski or Bass boat outfit. Part of the problem was you were TOO expensive. You were the ripe-for-cutting person. During the binge, it was nice having you on the phone, or face to face selling the unnecessary products that everyone wanted. Then September 2008 happened. You became too expensive. If the company was to survive, you and others like you had to go. Cost cutting for small business explodes overnight.(and some large ones too). Now your out looking for something similar to what you had. Everyone else in your shoes is as well. You don't find anything but manual labor jobs and few of them. Your own too expensive home you bought on an ARM is about to reset. You won't be able to afford it now. It a McMansion. You deserved it because you were in the groove. Your wife's Lexus (leased) SUV has to go. You really can't afford to keep your own BMW now, the payments at 650.00 for four more years. You got a son in the 12th grade, a daughter in the 10th (pregnant), and your 8 year old son needs extensive dental work this year.
BUT---YOU DONT GO OUT AND KILL SOMEONE BECAUSE OF THIS!!!!!!!!!!!!!!!!!! You do what you have to do. You start over, take care of the family, dump the toys and big house and get a grip and work it out. YOU DONT GO OUT AND SHOOT PEOPLE!!
Posted by: Elliot Ness | April 17, 2009 at 06:01 PM