A reader has pointed out that you can find out the real creation date of the latest version of Lott’s “corrected” Table 3a by looking at the File/Document Properties/Summary with Acrobat Reader. The document was created on Sep 2 2003 and not Jan 18 2004. A similar exercise with the earlier “corrected” version of Table 3a shows that that version was last modified on May 6 2003.

Glenn Reynolds calls this the “seemingly interminable John Lott coding error question”. I’m afraid the interminable nature of the question is entirely Lott’s fault. It took a brief exchange of emails with Florenz Plassmann to settle the issue to our satisfaction. If you correct Lott’s coding errors and rerun the regressions his results go away. There is absolutely no way that a reasonable person could dispute this. But Lott does. And he hasn’t stopped trying to get concealed-carry laws passed by advancing results that even he has conceded are based on miscoded data. In a letter published in the The Capital Times & Wisconsin State Journal on September 8 he refers to a

study by Professors Plassmann and Whitley that examines three additional years’ worth of data and finds “annual reductions in murder rates between 1.5 and 2.3 percent for each additional year that a right- to-carry law is in effect.”
That is what the study found, but you only get those numbers if you use the miscoded data. He just won’t stop lying.

Chris Lawrence writes

Tim Lambert does a pretty good job demolishing John Lott’s latest evasions
I think that part of his post is right, but this isn’t:
However—accepting that Ayers and Donahue do it right—there’s still the issue of null results. More guns may not mean less crime, but the results clearly show that more guns don’t mean more crime either, and the signs indicate that concluding “more” has less support than concluding “less,” although you’d have to be an idiot to come to either conclusion based on the Ayers and Donahue results (that’s why we call them “not statistically significant”).
These should not be called the “Ayres and Donohue results”—they are Lott’s results after correcting his coding errors. Ayres and Donohue offer persuasive evidence that the model Lott used is not adequate and they use a more general model that shows that carry laws are associated with crime increases in most states.

Tom Spencer wonders Just how dishonest is John Lott? and says that’s it time for Glenn Reynolds and Clayton Cramer to admit that Lott is a fraud.

Eric Scheie argues that statistics about guns and crime “have no bearing on basic constitutional rights”. I’m afraid that all the pro-gun folks who have based arguments on Lott’s statistics would seem to disagree with him.