Early Voting Laws, Voter Turnout, and Partisan Vote Composition: Evidence from Ohio
利用俄亥俄州2010年早期投票统一法，发现每增加一个早期投票日，投票率提高0.22个百分点，且对女性、民主党人、独立选民及育龄和劳动年龄人群影响更大。
We estimate effects of early voting on voter turnout using a 2010 homogenization law from Ohio that forced some counties to expand and others to contract early voting. Using voter registration data, we compare individuals who live within the same 2 × 2 mile square block but in different counties. We find substantial positive impacts of early voting on turnout equal to 0.22 percentage points of additional turnout per additional early voting day. We also find greater impacts on women, Democrats, independents, and those of child-bearing and working age. We simulate impacts of national early day laws on recent election outcomes.