We have analyzed the likely impact of adoption of Election Day Registration (EDR) by the Commonwealth of Massachusetts.

Consistent with existing research on the impact of EDR in other circumstances, we find that EDR would likely lead to substantial 
increases in voter turnout. We are able to offer the following estimates of increases in turnout for Massachusetts, and for specific groups of eligible voters under EDR:
  • Overall turnout could go up by 4.9 percent.
  • Turnout among those aged 18 to 25 could increase by 9.7 percent.
  • Turnout for those who have moved in the last six months could increase by 7.9 percent.
  • Turnout for African Americans could increase by 5.6 percent.
  • Turnout among the poorest citizens could increase by 5.6 percent; turnout among the richest of citizens would likely increase by only 3.4 percent.