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"With increased firearm regulations you find an increase in violent crime."

Is there some control for the possibility that those areas enacted firearm regulations due to already having a lot of violent crime?

Edit: It is addressed in the linked to document:

"But the more plausible explanation for many nations having widespread gun ownership with low violence is that these nations never had high murder and violence rates and so never had occasion to enact severe anti‐gun laws. On the other hand, in nations that have ex‐perienced high and rising violent crime rates, the legislative reaction has generally been to enact increasingly severe antigun laws" - (Bottom of Pg. 672)

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Should be obvious. Violent areas need to create more laws to control the violence. Peaceful areas don't need to tell their citizens not to have guns.

See also http://dilbert.com/strips/comic/1996-03-03/

The point is those additional laws don't control the violence. Good/law-abiding/upstanding armed citizens, however, do.
I think armed citizens can be a tenuous curb on violence but that still wouldn't solve the roots of violence.

A civilized society with low levels of poverty, good economic mobility, a good education system, a fair and effective judicial system and no drug war would mean there'd be less people committing violent acts in the first place.

When you're at the point where an armed citizen has to regularly thwart crime, you probably have major unresolved socioeconomic problems.

Not that I'm against a citizen's right to bear arms. Just saying that the goal should be to have less people motivated to commit crimes in the first place, not a bunch of would be criminals calculating whether or not they're going to encounter armed resistance.

I'd love to see a citation for that.

Maybe its just the sad fact that bad news tends to travel more widely but I have yet to hear (on UK news) of a situation were an honest law abiding citizen has stopped a tragedy. I realize that their very intervention may have stopped a tragedy, making it not news worthy but I'm sure there should be more instances to justify that argument.

Well in the UK law-abiding citizens can't arm themselves so you'll never hear that story. The law in the UK even goes so far as to prohibit citizens from carrying an 'offensive weapon' without a good reason.

So if you happened to be walking down the street with a knife and you were not a chef on the way to work, you could be arrested.

Even using "more force" than the assailant is illegal. Even if both are examples of deadly force, e.g gun v. knife. Done by the courts in the '50s, the Parliament in the '60s, so even the habits of self-defense are a distant memory.
It happens an estimated 2.25 million times a year in the US. Needless to say, the vast majority of these involve neither the gun being fired or publicity.

My favorite independent site was taken out by the Righthaven copyright trolls, but you can start with this: http://www.nraila.org/gun-laws/armed-citizen.aspx ; each item is from the media.

There are a LOT of would-be mass murders which were cut short because someone was armed and stopped the attacker either before killing started or after just 2-3 deaths. They don't enter the mass murder statistics precisely because they didn't happen despite intention thereto. The info you want is easily found on the web.
This study is not evidence that armed citizens control violence, just that areas with less of a violence problem don't feel a need to enact gun control.
> Good/law-abiding/upstanding armed citizens, however, do.

If your area is filled with good law-abiding citizens, you probably have lower crime rates.

Oh, so peaceful areas don't have guns?
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And correlation is still causation!
In this case, it is causation. Just not in the direction the gun advocates would like to think. Gun violence causes gun control laws, not the other way around.
Having skimmed the paper over, I'd like to quote this parapgraph, running from end of page 16 and rolling over to page 17.

Once again, we are not arguing that the data in Table 2 shows that gun control _causes_ nations to have much higher murder rates than neighboring nations that permit handgun ownership. Rather, we assert a political causation for the observed correlation that nations with stringent gun controls tend to have much higher murder rates than nations that allow guns. The political causation is that nations which have violence problems tend to adopt severe gun controls, but these do not reduce violence, which is determined by basic socio‐cultural and economic factors.

Stringent gun control policies tend to appear in nations and/or regions where violence is already a problem. This study merely underlines the futility of any single tunnel-visioned policy - people who are willing to commit murder, are also willing to expend effort to find any weapon(s) to allow them to proceed in their endeavours.

Here in Finland, we have quite a few weapons, but they are rarely used in violent crimes. This nation tends to favour bladed weapons in their homicides: knives, axes and other things that are easy to pick up and use in drunken anger.

At least with knives and axes you have some chance to run away.
Throwing knives, throwing axes?

And, the grandparent commenter's comment duly considered, I still wouldn't easily dismiss a Finn's ability to use guns to kill people; see the White Death[1].

[1] https://en.wikipedia.org/wiki/Simo_H%C3%A4yh%C3%A4

Throwing a knife/axe to useful effect is difficult enough with a stationary target under calm conditions. The number of people able to do so with malice under high stress at a moving target is vanishingly small.
And it's hard to stab 70 people ..
A viking cares nothing about difficulty when there are plans to be made.
The #1 weapon of mass murderers, despite what the media would have you believe, is fire.
You can run away from someone holding a gun. I did. Worked great.
It's okay. In a few years, we'll be using drones.
In a few years I'll have smart nanoarmor.
BINGO. Thank you for pointing that out. You can take away the guns, but you CAN'T FIX CRAZY and America is CHOCK full O' nuts.
The operative phrase being ... The political causation is that nations which have violence problems tend to adopt severe gun controls, but these do not reduce violence, which is determined by basic socio‐cultural and economic factors.

I saw a T-shirt that said "Guns don't kill people, Angry people kill people." and on the back it said "Chill out" and there was a marijuana leaf on it :-)

Once a person has gotten themselves to the state that they only solution they see to their hurt is to make someone else dead, it really doesn't matter, they are going to try to do that.

Australia has tighter gun control laws, fewer guns, and more violent crime -- but far fewer homicides.

So, leaving aside the disjunction between a society in turmoil with strict but poorly enforced laws, there's the possibility than gun controls increase violent crime while reducing homicides, or the possibility that when lots of people get shot you tend to miss other stuff.

I really appreciate your response to this article. I've made this argument with a lot of people that just simply refuse to believe it.

I've dug into a lot of the statistical data around gun fatilities in as many nations as possible including the United States. The biggest obstacle is that none of it is standardized. Violent crimes and gun violence is reported differently through municipalities and nations, association of criminal and non-criminal behavior is not effectively broken down. To be honest, it really makes me unsure as to how a lot of the media and political decisions are made.

For instance, nearly two thirds of all gun related deaths in the United States are suicides and gun statistics seem to typically be reported on an overall number versus a per capita basis.

Per capita, Finland has about the same number of guns as the US, approximately the same laws regarding guns and yet, their per capita homicide rate is substantially lower.

This may come as a surprise, but I'm actually in favour of reasonable gun control laws. What I am opposed to is the idiocy of enacting laws as knee-jerk reactions. I'm also afraid that in about 10 years, our firearm homicide rate will go up.

First, some background: I have friends who collect guns. Hell, one of them has a working replica of a light naval blackpowder cannon! My relatives are active and eager hunters, some of them own several different guns (2-3 shotguns, at least 2 different rifles).

Without even looking at statistics, I'm certain that per capita there are more active hunters in Finland than in US. This means that the lessons of use and care of firearms have come from people who by their nature are cautious with their weaponry. If you've been taken out to woods to hunt starting from your pre-teens, you have most likely learned to respect firearms. Not fear - just respect. And having been around actively used and maintained firearms, they may just lose some of their glory.

As to why I think we're going to see a slow rise in our gun homicide rate? There's a rather lengthy story behind that. Finland had their own private financial crisis in early 1990's. One of the victims of severe budget cuts was the youth mental healthcare. It's had even more cuts since then. We're now witnessing the second generation of Finns who haven't had the benefit of pre-1990's level of mental healthcare. There are more undiagnosed unstable people around now.

We've had two school shootings in the past few years. I don't see the situation getting better, so over the next decade we'll very likely see more premeditated gun crimes by people in their early 20's.

I don't have statistics or studies at hand, so please consider everything above my personal opinion.

I'm in favor of reasonable gun control laws that aren't a reaction to circumstance as well.

Side note: I have a friend who grew up in Northern Finland and was hunting small game since a very early age (I think he said six or seven). He's introduced me to a lot of great Finnish things, like Paleface, salted black licorice and gravlax. I hope to visit there someday.

Looks like they are cherrypicking data to prove their pet theory. A couple of points:

- Legally held guns in England are generally owned by farmers, collectors and hunters. Those people predominantly live in rural areas, where crime is low. High rates of homicide generally occur in cities using illegal guns. So naturally you will see a negative correlation between LEGAL guns and violence. However it isn't the gun control legislation that is causing the increase in violence (LOL). In fact if you allowed teenagers in the shitty housing estates to legally own guns, I suspect you'd have a lot more homicides.

- Compare Canada to the USA. We have 1/3 of the legally held guns you have, and about 1/3rd of the homicide rate.

The Harvard study unequivocally does not say that gun control legislation causes the increased violence, nor does the linked blog post.

The Harvard study is simply stating that murder rates are not appreciably affected by gun control legislation, and that the big drivers of violence are socioeconomic.

> The Harvard study

Contrary to the headline (here and of the blog post), there is no Harvard study involved. If you can call the paper a study (which is, I think, somewhat dubious -- that implies a structured analysis or meta-analysis, which this is not) by two non-Harvard-affiliated scholars (one of which is affiliated with a right-wing think tank) published a student-run publication out of Harvard that bills itself as "the nation's leading forum for conservative and libertarian legal scholarship."

I didn't say that it did. I'm simply pointing out that there isn't even a correlation. The "study" is basically pro-gun crap.
And at a population of roughly 35 million people to the USA's 319 million, you have a tenth of the population too.
I was talking about the homicide rate per population (which you would realise if you had actually looked at the data).
Also interesting that I've had two downvotes for this. You know, you're not meant to downvote something you don't like. I'm assuming that is the reason, as there are no comments with valid arguments against my comment (and even the invalid replies didn't have enough karma to downvote). I can only assume there are some anonymous gun-nuts on HN. If I've said something incorrect, feel free to comment.
Downvotes because you're saying the article is wrong, then make assertions which are in line with the article's conclusion.

BTW: there a LOT of not-anonymous gun-nuts on HN.

I just read the article's conclusion, and it's just says "more gun control != fewer deaths". My comment is saying that their data is wrong (or cherrypicked) and their attempt to disprove any correlation doesn't hold water.

What I would expect to see would be a scatter graph showing all the countries in the world with guns on one axis and homicides on the other axis - that would make the article a bit more scientific rather than just cherrypicking a few countries. Most of their argument seems to be based on the fact that Russia has a high homicide rate and they have banned handguns. However we all know that Russia has law and order issues.

EDIT: I just did a quick search, and it seems there are graphs of homicides vs gun ownership for all countries, e.g. http://www.neontommy.com/news/2012/07/doing-math-guns

So it certainly does look like gun ownership isn't correlated to homicide rates. However that doesn't necessarily mean that gun control is a bad idea. Does gun control reduce homicides when you control for other factors? The article is arguing that it does not, but my argument is that Canada vs USA shows that it does.

Gun laws vary state to state, so that doesn't really tell us the whole story. Look at these numbers, all per 100,000 from 2006: Canada - 1.9

States with cities that have VERY strict gun laws: Illinois - 6.1 Michigan - 7.1 Louisiana - 12.4 (!)

States with lax gun laws: Montana - 1.8 Idaho - 2.5 North Dakota - 1.3

Now, admittedly, I cherry picked those to prove a point that you can blur the numbers to show what you want them to show, and I can just as easily pick numbers from strict gun law states with really low numbers and states with historically lax laws with higher numbers. We could go back and forth all day long like that, but I think that this paper, or whatever it is does make a pretty valid point which is that gun control doesn't really have the desired effect. Whether you look at entire countries, or individual states or municipalities, you will always find examples of strict gun laws with lots of violence, and no gun laws with almost no violence, and vice versa. We really just need to take a step back and realize that we are coming at this violence problem the wrong way and that the time, energy, and money we keep using to push for tighter gun control, is all wasted on something that likely would not work, and we're taking all those resources away from research we should be doing to find a real solution to the problem.

Links for the numbers I found: http://en.wikipedia.org/wiki/Crime_in_Canada http://www.deathpenaltyinfo.org/murder-rates-nationally-and-...

Also, that first link has numbers for Canadian provinces, but I have no idea if they have individual gun laws, or what the story is there, so I just left it alone. All the numbers seem pretty low there and they all seem pretty close(except for Nunavat, which is 6.5 but that's probably because the pop is only 32,000), so I just left it as one number for all of Canada for comparison.
Remove just four cities from US homicide rates and the USA drops from one of the highest on the per-capita murder list to one of the lowest. Interestingly, those cities also have the highest level of gun control.
The question then becomes do those cities have tight gun control because of or in spite of the high rate of gun crimes?
Considering that those cities have what amount to complete bans on gun possession, it's "in spite of." Total prohibition doesn't work.
...in a country which only has small islands of total prohibition surrounded by a sea of millions of available guns.
Cocaine and other imported hard drugs are easily available nationwide despite total national prohibition and a militaristic level of governmental opposition to importation. Take all the guns away, and demand will find a supply nonetheless.
Yeah, we'd have trouble cracking down on people growing Glock's in fields or manufacturing AR's from scratch with stuff they bought from CVS.

And it would be impossible to stop gun's from being imported from Latin American with it's renowned industrial base for manufacturing firearms.

I feel like there's a common misconception that guns are hard to make. They're not. Even 'assault weapons', by and large, are extremely simple systems. This guy[1] made an AK47 out of a shovel, for example.

Similarly, guns are nearing the 'grows on trees' level of simplicity with 3D printing.

[1] - http://i1178.photobucket.com/albums/x368/_ak_74_/shovel_ak/5...

Gun's are not that hard to make, I assume they are fairly hard to make in volume and quality. Australia, which has rather strict gun laws, does not, by my understanding, have a massive problem with illegal guns being manufactured. Nor does England.

As for the hilarious "assault shovel", my understanding was he made the receiver but purchased the barrel and most of the other parts. It just happens that because of US law, the receiver is the regulated part.

"And it would be impossible to stop gun's from being imported from Latin American with it's renowned industrial base for manufacturing firearms."

https://en.wikipedia.org/wiki/Taurus_(manufacturer)

The gun my father most recently bought is from them (a 9mm 5 round revolver, a fairly nice piece of work).

Let's step past the snide insults and look at relevant realities:

Glocks are a remarkably high-density-value product. One cubic meter of quintessential Glocks (model 17 gen 4) would have a street value of at least US$500,000. This is typical of medium-quality handguns, whatever the make & model. A way to acquire & distribute them would be found.

ARs can be made from scratch with stuff bought from Lowes or Home Depot (or pretty much any decent hardware store). Go look up "80% AR receiver" for a good look. AK47s are much easier to make, and have equivalent gross performance.

There is of course the current meme regarding "3D printed guns". Not quite up to desired quality yet, but those involved in the project(s) are making amazing progress in a very short time.

All those types are at the upper end of complexity. Simpler designs (bolt/break/lever/revolver action) are much easier to make; we have a rich history of domestic manufacture thereof involving low-tech processes.

The only "hard part" about making guns is the barrel and primers. Hard, but not impossible for individuals.

Remember the spark that started the revolution resulting in the USA was, in fact, gun control (look up "Lexington and Concord"). Our culture of gun ownership by upstanding citizens is very deeply ingrained, and any suggestion of curtailing it is intensely opposed. Were all guns banned & confiscated within US borders, the rate of garage/basement gun manufacturing would be astounding.

Guns are simple machines. Get a cartridge into a rifled tube, provide sufficient structural support, impact the primer, bang. They're not hard to make. Quality manufacturing has raised our de facto expectations, but workable mundane products can be turned out by a guy with a lathe and a hacksaw. It's not magic.

I am familiar with 80% receivers and yes, they do rather readily demonstrate the absurdity of US gun laws (though I think the fact that the assault weapon's ban deals with bayonets attachment points demonstrates that better). But that's a legal technicality. If you actually outlawed most of the parts for a gun (particularly the barrel), it would be a lot harder to manufacture a decent gun, certainly harder than growing drugs.

How much harder? Technically, I'm not sure. However, Australia, England, and Germany, all of which have rather restrictive gun laws, don't seem to have that much of a problem with home built guns. Nor, as far as I know, do they have a large problem with illegally imported guns. They do, however, have problems with drugs.

Look, gun control has a lot of really stupid proponents(witness the assault weapon's ban on scary looking guns), but the argument that banning guns wouldn't work because prohibition of drugs failed is almost as stupid. It's almost as much of a blatant attempt at pandering to the liberal pro legalization crowd as the "think of the children" anti-gun stuff is to whoever listens to that crap. Countries have done it and it appears to work in so far as it does seriously reduce gun crime.

It's possible there are too many guns in the US to actually ban them, but that is not the argument of the "war on drugs" analogy. Furthermore, I think that's also moot. Criminals get arrested and get their guns confiscated, guns break, they get disposed off to avoid having evidence of a crime, the supply of extent criminal guns will dwindle. As to the large set of legal gun owners in the US, some of whom might have "boating accidents" and not turn in their guns, presumably they are not going to go out and start robbing connivence stores just because. Though I grant, this whole line of reasoning is a debatable point , but there is no real analogy to the war on drugs.

This doesn't mean prohibition is a good idea at all.

The question of course is 1) does it actually reduce violent crime and 2) even if it did, is it morally right to take away people's ability to defend themselves.

As long as there is the insanely high profit motive with the drug war, there'll be a black market for firearms. Drug cartels are building freaking SUBMARINES to smuggle drugs for crying out loud. They absolutely would make their own firearms if guns were banned in the United States.

Never mind the fact that there are currently somewhere around 300 million firearms in private hands today in the US. It would take well over 100 years to get all of those out of circulation if you were somehow able to ban them today. And chances are the 80 million armed Americans wouldn't allow the government to take those guns anyway.

Or in a country where anyone can make an AK47 in his garage for less than $100 by pressing a shovel into the shape of an AK receiver.

Pretty soon, we'll be entering an area where printable 3D guns are less likely to blow up in one's face, which raises the production costs a little bit in the short term, but which will likely result in even cheaper firearms manufacture.

Total prohibition doesn't work because it doesn't exist: you can go two states down and get guns. This doesn't mean prohibition is a good idea, but saying it's been tried is inaccurate : no one thinks gun laws will seriously cause criminals to change their minds on having guns. People think guns law's will prevent criminals from getting guns.
Oddly enough though, the inverse does exist. If you flood a township with guns, as they did in Kennesaw, Georgia in the early 80s; By passing a law requiring every head of household to own a firearm, they were able to drop crime in all forms by over 80% in the township proper. 25 years later they were able to celebrate 25 years without a single murder in the township, despite population growth of 500%.

Also interestingly, the areas immediately surrounding Kennesaw have the same levels of crime as ever, which illustrates that yes, they didn't solve crime, they only displaced it. On a crime map, there's a ring of 'red', like a corona, around the township proper. It's amazingly curious.

I don't have the numbers on hand, but I've tested that claim in the past, and have to say that it isn't true.

Without knowing which 4 cities you were citing, let's assume that we're talking about 4 Chicagos (the national worst), whose homicide tally for last year was 500 (435 gun-based), that means we could remove as much as 2,000 from the intentional homicide rate, which doesn't move us substantially along the scale, and certainly doesn't put is within even a couple dozen of the bottom of the list.

If we refine the parameters even to be more optimistic, and limit it from first-world countries with similar domestic output, it still doesn't push us substantially down the list to consider us even remotely "one of the lowest".

Of note, perhaps, is that I am a civil rights supporter, and I believe that the second amendment grants us the right to keep and bear arms without infringement. Regardless, I tried for a few days to make that claim reconcile with reality, and couldn't.

If anybody knows of the criteria chosen, I'd gladly re-do the numbers, but I feel it would have to stack the deck pretty deliberately to get even close to that outcome in actuality.

The extent of the jurisdiction may be a squishy factor. The "greater metropolitan area" may extend well beyond the strictly-speaking city limits.
Very fine point. I don't know that I've ever looked at data that represented crime in "a given city" and "surrounding areas".

Might indeed be the tipping point. Thanks!

Indeed. In the case I'm most familiar with, a whole lot of people decamped from impossible D.C. to Prince George's county, Maryland.

Now, to someone who lived in Arlington, Virginia for a dozen years the crime in PG was awful. To someone living in D.C. I strongly suspect PG was not bad at all, and being allowed to own a firearm in your house made I'm sure a significant difference.

Or take Boston, which the WASPs kept small after the Irish took over the city; without looking in more detail, the top level Wikipedia page indicates annexations stopped after 1874 with one non-WASP exception (https://en.wikipedia.org/wiki/Hyde_Park,_Boston).

Note the title of the article in the link has changed (after a comment there) to "more gun regulation correlates to more violence", which is quite a bit different from less guns correlate to more violence (the current title here).
Yes -- it's grammatically correct, and this title isn't.
Well, the tacit assumption that "more gun control" means "fewer guns" is a more substantive problem. I think other "Harvard studies" (Hemenway) show, in fact, that fewer guns correlate with LESS homicide. http://nyti.ms/142rOJe
Shifting topics away from grammar for a moment, it's unfortunate that these issues can't really be studied scientifically. The result is that people can take the existing data and twist it to suit any conclusion.

Most European countries have fewer guns or no guns, and much lower levels of violence. But then, they're different people with different values -- the role of guns in their societies might be an effect, not a cause.

Another way to put it: Places with high violence tend to adopt more gun control. When stated that way this study's findings sound obvious.
> Less guns = more violence: Harvard Study

"Less guns"? No one at Harvard would dare write such an ungrammatical headline -- this had to be the work of the submitter. And it is.

http://afterdeadline.blogs.nytimes.com/2011/03/01/fewer-vs-l...

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The wording is probably influenced by the title of the popular book "More Guns, Less Crime".
Yes, and ironically enough, that's grammatical, because crime is a continuous quantity. Oh, well, I guess it's all a bit arcane.
Removing bullets from people causes violent crime.

Look, we can statistically show that everywhere someone has tried to do something about people getting injured with guns, there is more violent gun crime!

We must stop these surgeons! Clearly, by trying to help, they're causing the problem!

</sarcasm> <logicalFallacyReference name="post hoc ergo propter hoc" />

Don't assume that everyone, especially Harvard researchers, are as ignorant of statistics, correlation and causation as you appear to be. Their intention and conclusion is clear in the paper. They aren't making any bold, ridiculous claims.
First, "as you appear to be." Where did that come from? Do you have any basis for that thought, or do you just enjoy typing angry words that sound good to you?

Second, the Hacker News article headline is, "Less guns = more violence." That is an absolute declaration of causation.

The linked article makes this assertion without any backing:

And enacting legislation without proper evidence supporting that it will have the desired effects can actually result in, as these studies show, the complete opposite.

The study does not show that. In fact:

we are not arguing that the data in Table 2 shows that gun control _causes_ nations to have much higher murder rates than neighboring nations that permit handgun ownership.

As close as they get in the report:

these [laws] do not reduce violence,

While the linked article claims that they increase violence.

TL;DR: The linked article makes false claims about what the report says, and the Hacker News article headline is just as bad or worse.

You can't ban stupid people by law. Or there isn't one that succeed yet.
Here is a thought experiment:

You are someone who is considering committing a crime. Let's say a robbery of a convenience store. You already own a gun. It doesn't matter how you acquired your gun, you already have it. You now have the choice of where to commit your crime. You can commit that crime in an area where it is illegal to own a firearm, and your victim will very likely not be able to defend himself, or you can commit that crime in an area where your victim can legitimately own a crime, and may shoot you if you try to rob him. Where do you choose to commit your crime?

How plausible is it that enough people cross state or country borders in order to rob convenience stores to make a difference in the measured violent crime rates?
I can say that friends residing in Washington, D.C. told me it happens a lot, and cited specific crimes near their residences.

Particularly from Virginia, which is correctly assumed to have a lot of gun owners, and since sometime in the '90s more than a few concealed carry licensees.

Honestly, I'd say it's fairly likely. DOJ reports and CJIS statistics have pointed out that criminals, by and large, prefer their would-be victims to be unarmed, and will actively seek out targets they believe to be unarmed.

This is likely the reason that the Aurora shooter went 20 miles out of his way, passing both the closest theater to his home, and the largest theater in range, to perform his assault at the one theater in the (otherwise gun-loving) Aurora, Colorado area that specifically banned guns.

This is also a potentially contributing factor as to why a majority of mass murders are committed in areas labeled "gun free zones", like schools, college campuses, Fort Hood, etc.

> This is also a potentially contributing factor as to why a majority of mass murders are committed in areas labeled "gun free zones", like schools, college campuses, Fort Hood, etc.

Aren't those areas that are labeled "gun free zones" because it's easy to commit mass murder there? It's not the signage that makes it happen.

There are many more areas conducive to mass murder than there are areas where guns are specifically disallowed. As I mentioned already, the Aurora, CO theater was likely targeted specifically because it was the one theater in the area in which guns were specifically banned.

Schools might have ostensibly been labeled as 'gun free zones' as an attempt to stymie attempts at committing mass murder within them, but even if we can't prove their effectiveness, we can't deny that their lack of armed defenders makes them an attractive target for someone trying to inflict the most damage.

Edit: And for clarity, I wasn't suggesting that the signage causes mass murders to happen - but it does somewhat accentuate that if I were looking for somewhere to wreak havoc, I'd have little opposition in areas with 'gun free zone' signage.

(comment deleted)
Let's change the thought experiment - you have two people, both in desperate situations and strongly considering committing a crime. One lives in a country where guns are illegal, and the person knows his victim will not have a weapon to defend himself. The other lives in a country where there aren't any gun control laws, so it is highly likely his victim could have a weapon and defend himself. Who is more likely to follow through with their crime?

My point was that gun control laws empower criminals because they know the odds their victims will have a gun to defend themselves are significantly lower.

Correcting your question to replace "state or country" with "jurisdiction", considering the extreme variance of gun laws within the USA, the answer is it does make a difference.

There is growing evidence that criminals DO, at least to a meaningful degree (hey, they're criminals - most are stupid), choose their targets based on odds of the would-be victim fighting back. Of late and in particular, several mass murders have occurred in "gun-free zones" when more convenient/suitable (to the killer) venues existed but allowed civilian weapon carry.

Parallel answer to your question is that the measured violent crime rates you reference are too broad, aggregating a few small high-violence areas with broad low-violence zones, creating misguided statistics.

ALL the notorious recent mass murders except for the Arizona Congresswoman shooting happened in gun free zones. If the people right there hadn't restrained the shooter he would likely have been stopped by an armed citizen who showed up moments later (while the restraining was still an act in progress).
I've never found this argument convincing. I've always thought that the following seems like a likely expansion to your thought experiment:

You live in a city that enforces gun control, and you know that the nearest convenience store holds a lot of cash after 8pm. The nearest city that doesn't enforce gun control is over a 1hr drive away in traffic, and you don't own a car. Do you (a) commit a crime of desperation at a local, familiar place, or (b) find a way to travel 20+ miles to knock over a liquor store?

Chicago would be a good example of this. To get from downtown Chicago to a nearby city without gun control might take an hour in a car, which our supposed criminal might not have access to. It seems to me that "locality of victim" is just as strong a determinant as "safety from retribution."

I'd say 'locality of victim' is a consideration when committing a crime as well - there are a lot of factors that go into the decision to commit a crime. Aside from gun control, poverty is by far the biggest driver of gun violence (hence your mention of crimes of desperation). IMHO, poverty + gun control laws = much more violence.
"The nearest city that doesn't enforce gun control is over a 1hr drive away in traffic, and you don't own a car. Do you (a) commit a crime of desperation at a local, familiar place, or (b) find a way to travel 20+ miles to knock over a liquor store?"

Being a criminal, its easy to add c) steal a car and abandon it when you're finished with it.

I really hate random people taking an article and twisting it for there own link bait. No where in this study does it say that "less guns" equals "more violence". All it says is that areas with high violence (irregardless of guns, this also does not take into account the % of those murders that happen due to guns) have high gun control.

This article also does not take into account areas in Africa, and the Middle East and instead focuses on Europe, which is greatly swayed due to the high level of murders in Russia.

This article should be called "In Europe More Guns != More Violence".

What makes the title more absurd than usual (regardless of if it's been edited or not) is that the final paragraph of the post emphasizes that complex systems of society can't be boiled down to simplistic relationships. Such as "less guns == more violence" or vice versa.
Its not a "Harvard study", its a study by people with no affiliation with Harvard published in the Harvard Journal of Law and Public Polic, which isn't a scientific journal but a Harvard Law student-run publication that bills itself as "The nation's leading forum for conservative and libertarian legal scholarship."

Its also not a structured analysis (or meta-analysis), but a polemic with footnotes.