requires controlling for appropriate confounding variables and thereby reliance on a model such as those used by Lott and others.
The results without controls are quite different. Using the earlier sample period and the new data, one finds three negative coefficients, only one of them statistically significant. When the sample is extended to 2000, only one of nine coefficients is negative, and it is insignificantly different from zero. For example, the violent crime coefficient with controls is 4.1 percent, while it is 12.9 percent without controls. These results show that states that
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6 Right-to-Carry Laws ."
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