The educative effects of ballot initiatives on voter turnout

Scholars have begun examining what Progressive reformers called the educative effects of direct democracy, especially the effect ballot initiatives have on voter turnout. Research based on aggregate-level voter age population (VAP) turnout data indicates that ballot measures increase turnout in low-information midterm elections but not in presidential elections. We analyze the impact of ballot initiative use on voter turnout from 1980 through 2002 using voter eligible population (VEP) turnout rates. Cross-sectional time-series analysis reveals that (a) ballot initiatives increase turnout in midterm as well as presidential elections and (b) the turnout effect in midterm and especially presidential elections is considerably larger than previously thought. On average, turnout in presidential elections increases by 0.70% with each initiative on the ballot, whereas turnout in midterm elections increases by 1.7%, all else equal. Given the closeness of the Electoral College contests, it is possible that the mobilizing effects of statewide ballot questions could be the determining factor in future presidential elections.