Does Concealed Carry Permitting Trigger Bloodbaths?

government-blank-pistolA common argument against concealed carry weapons permits (CCW) is that it would result in more crime, often expressed hyperbolically as precursor to a bloodbath. With 48 states allowing some form of concealed carry, we should expect that there have been enough natural experiments to answer this assertion definitively.

My expectation is that the people who are likely to request a CCW are not likely to commit crimes. Criminals would carry regardless of a CCW permit, so allowing concealed carry in a state should not increase the number of criminals that have firearms.

Florida has issued over 1.6 million CCW permits since 1987 and only 167 have been revoked because the permit holder committed a crime with a firearm. That implies that only 0.01% of CCW permit holders commit firearm-related crimes. Florida revoked  0.3%  for all reasons combined. North Carolina reports 0.2% revocations for any reason.

Since most permit holders are male (85%) , and most crimes are committed by males (91% for weapons crimes), we can compare the revocation rates to male crime rates. There are about 300,000 assaults and robberies per year committed with firearms, and about 150M men, a whole-population rate of  commission of firearm-related crimes of 0.2%.

This suggests that CCW permit holders commit firearm related crime at a rate of about 1/20th of the rate of the general population. You should actually feel safer among CCW holders than the average population.

Why We Are Worried About Debt?

Robert Reich recently posted an article on Salon about why we should not worry about the US government debt, and why it should be even higher that it is now. Government spending, he says, got us out of the Great Depression, and it can get us out of the current recession. Reich’s dad though that it would take 60 years to pay of Roosevelt’s debt, and it only took 20, so why are we worried now? Here is a graph that illustrates Mr. Reich’s point:
As Reich claims, the debt was higher in the 40’s, as a percentage of GDP, and it was paid off ( to a pre-war level ) in about 20 years.

I’m still worried. We don’t know what the next 20 years will bring. If those years are as prosperous as 1945 to 1965, a larger debt, and associated spending, may be a net benefit to our economy, but there is a deeper problem. Here is a graph from the GAO report A Citizen’s Guide to the 2008 Financial Report of the U.S. Government that shows the sum of the US Government’s expenses, from 1970 to 2080:


That red bar is payments on the Government debt, and the black line is total revene, estimated to contine in the future at the historical 18% of GDP. Notice the expenses grow exponentially, and the revenues doesn’t change much at all. That situation is very bad.

The report says:

These large and growing deficits could increase Government debt levels as a percentage of GDP to unprecedented and unsustainable heights – from 170 percent by 2040 to over 600 percent by 2080 – far exceeding the historical high of 109 percent that occurred immediately following WWII and far exceeding the Government’s ability to fund program expenditures.

The problem isn’t just the payments on the debt, it is the debt plus all of the other mandatory government expenses. And, this report was written before the current health care debate, the resolution of which may increase mandatory expenditures even more. Our government has much higher expenses today than in 1945, and we can’t count on the next 20 years being as prosperous as the post war years.

The GAO offers a very direct instruction:

With respect to entitlement spending, the nation must change course before the deficit and debt reach unprecedented heights. The Government must act to bring social insurance expenses and resources in balance. Delays will increase the magnitude of the reforms needed and will place more of the burden on future generations.

Robert Reich’s dad was wrong about Roosevelt’s debt, and Reich is wrong about about today’s debt; it will be a burden to our grandchildren.

Trying Out Google and Facebook Friend Connect

Would you be my Friend?

Here is Google’s Friend Connect Widget:

var skin = {};
skin[‘BORDER_COLOR’] = ‘#cccccc’;
skin[‘ENDCAP_BG_COLOR’] = ‘#e0ecff’;
skin[‘ENDCAP_TEXT_COLOR’] = ‘#333333’;
skin[‘ENDCAP_LINK_COLOR’] = ‘#0000cc’;
skin[‘ALTERNATE_BG_COLOR’] = ‘#ffffff’;
skin[‘CONTENT_BG_COLOR’] = ‘#ffffff’;
skin[‘CONTENT_LINK_COLOR’] = ‘#0000cc’;
skin[‘CONTENT_TEXT_COLOR’] = ‘#333333’;
skin[‘CONTENT_HEADLINE_COLOR’] = ‘#333333’;
skin[‘NUMBER_ROWS’] = ‘5’;
google.friendconnect.container.setParentUrl(‘/’ /* location of rpc_relay.html and canvas.html */);
{ id: ‘div-4019134814077193782’,
site: ‘18179748395891449876’ },

And Here is Facebook’s. Facebook requires a lot more work, because you have to program in XFBML

Your picture, if you are logged into facebook:

Here are a bunch of your friends:

var widget_div = document.getElementById(“profile_pics”);
FB.ensureInit(function () {
FB.Facebook.get_sessionState().waitUntilReady(function() {
FB.Facebook.apiClient.friends_get(null, function(result) {
var markup = “”;
var num_friends = result ? Math.min(10, result.length) : 0;
if (num_friends > 0) {
for (var i=0; i<num_friends; i++) {
markup +=
widget_div.innerHTML = markup;

Cheaper Recyclables Collections

recycbinInterested in doing a science project, Max and I went to the alley to collect a 2 liter plastic bottle from the recyclables bin. I had put the bottle in the bin the day before but could not find it that day. I also noticed the beer and wine bottles were missing, but the paper and cardboard were still there.  The common factor in the missing items was the California Redemption Value tax, and the next day the mystery was completely solved, when I saw two people in the alley collecting bottles from the bins.

The California Redemption Value (CRV) like other deposit charges, and the Oregon Bottle Bill that preceded it, were largely intended to decrease roadside trash and increase recycling rates. They are very effective because of the economic principle that people respond to incentives. If there is enough of a benefit to either not throwing a bottle away, or picking it up after it has been discarded, the bottle will not end up in the trash or the roadside. The same thing happens on the beach, where bathers will intentionally leave aluminum cans behind because they know someone will pick them up. Continue reading “Cheaper Recyclables Collections”

The Evil of Denying Claims

deny_full A common argument against the current state of American health care is that the evil insurance companies make their obscene profits by denying claims. I don’t intend to tackle the question of the moral right of companies to make profits, or to defend the current state of American health care, but I do want to address the moral and economic issues of health care companies denying claims.

One of the important implications of the law of supply and demand is that when the price of something drops, demand increases, and if the price is zero, people will probably demand more than there is supply of the thing. If the thing is plentiful, like air, there isn’t much problem. For for everything else, a price of zero usually means lines, shortages or rationing. Imagine anytime a company like Starbucks or McDonalds gives it’s products away: the offer generates a crowd, and all the free stuff is gone before you get there, so you don’t get any. Continue reading “The Evil of Denying Claims”

Daily Mail Sucked In By Science Hoax

HairCellThere is always someone who will believe an incredible science or technology story, especially when the technology could save the planet, or is invented by a teen-ager, or comes from the third world. When the story has all three elements, the suckers get in line.

Today, the Daily Mail reports that an Indian teen-ager has created an inexpensive solar cell from human hair. It is an inspiring story about a plucky teen who will one day change the world.  The only way for it to be a better story would be for it to be true. I’d be happy if it just were not jibberish.

As with many hoaxes, there is an element of truth. Melanin,  a component of dark human hair, is a semiconductor and is photo-reactive, and you can use it to create a solar cell. However, these cells, like most solar cells made from organic semiconductors, are not very efficient, about 2.7%. Unless the cell is virtually free, 2.7% is not going to change the world. Continue reading “Daily Mail Sucked In By Science Hoax”

The Received Wisdoms Of Venture Capitalists

RevenueThe substrate  of the start up business plan is that the nascent business will reach $50 million revenues per year after 5 years. Venture Capitalists seem to expect that every pitch will have a revenue graph with a hockey-stick shaped revenue line that shows the business at $50M in 5 years. Naturally, this means that constructing a financial model for a startup involves tweaking the spreadsheet to get $50M in 5 years. All of the other predictions of the model are secondary.

When have we asked if this is a reasonable goal? Are any Entrepreneurs bold enough to ask VC how many of their portfolio companies have actually his $50M in 5 years? Continue reading “The Received Wisdoms Of Venture Capitalists”

Hating The Creators

commiesIn his Labor Day article in,  Michael Lind satirizes free-market conservatives, who he claims believe that Laborers destroy wealth. In building that thesis, he presents a range of logical fallacies that are interesting to analyze.

Mr. Lind doesn’t daly. His opening sentence lays out his theme:

Today is Labor Day, when we celebrate the wealth destroyers – at least if the libertarian right is to be believed.

Continue reading “Hating The Creators”