This research finds that, in addition to higher overall turnout, down-ballot turnout was higher in Vote At Home optional precincts than in polling place only precincts, even after controlling for other differences. Overall, this research indicates that Vote At Home is a boon to civic participation at all levels of the ballot when measuring by the important metric of raw vote totals.
The Turnout Effects of All-Mail Election Systems in Up-ballot and Down-ballot Races in Utah