Substantial academic interest and public policy debate centers on campaign finance reform. Campaign resources can provide benefits to constituencies if candidates use them to fund the distribution of useful information. On the other hand, voters can potentially be harmed if candidates trade...

We document the effectiveness of robo calls for increasing voter participation despite most published research finding little or no effect of automated calls. We establish this finding in a large field experiment in a targeted, partisan get-out-the-vote campaign. Our experimental design includes...