A Field Experiment on the Effects of Negative Campaign Mail on Voter Turnout in a Municipal Election

This field experiment is used to expose a random sample of voters in a 2003 mayoral race to various pieces of negative direct mail advertising. Exposure to the negative advertising stimulus improved turnout overall about 6 percent over that of the control group. Results show that different topics and amounts of negative advertising had different effects on turnout. The results suggest that alarm bells sounded by some previous research and by public officials may be overheated, because the effects of campaign negativity may not be monolithic, and it would appear political negativity can have a positive effect on turnout.