The Economist recently ran an article about suicide in the United States, which presented a chart showing a strong positive association between suicide rate and gun ownership across US states. This led me to wonder whether a similarly strong association exists between homicide rate and gun ownership. I took data on gun ownership from the same source as The Economist, namely a paper by Okoro et al. (2005) published in the journal Pediatrics. And I took data on homicide rates from the FBI's Uniform Crime Report for 2002 (the same year as the gun ownership data). As the chart below indicates, there is no relationship between the two variables: r = –.05 (p = 0.7, n = 50). I have previously noted that there is also little apparent relationship between homicide rate and gun ownership across countries.