Editing Vote pairing (section)

== Effectiveness ==
In 2016, [[Yale]] [[political science]] associate professor Alexander Coppock partnered with TrumpTraders.org to empirically test the effect of vote swapping. TrumpTraders randomly assigned 4500 third-party voters from swing states who signed up to either a control condition (not matched with a safe state voter) or a treatment condition (matched). Of control voters (not matched), 25% voted for Clinton regardless. Of treatment voters, 57% voted for Clinton, representing a 32 point (or 128%) increase. On this basis, Coppock argues that "vote swapping programs may be an effective campaign tactic to persuade third party voters to vote for major party candidates".<ref>{{Cite web |first1=Alexander |last1=Coppock |title=A Field Experimental Test of Vote Swapping |date=March 30, 2018 |url=https://alexandercoppock.com/coppock_2018.pdf |url-status=live |archive-date=September 26, 2020 |archive-url=http://web.archive.org/web/20200926062650/https://alexandercoppock.com/coppock_2018.pdf |quote=This study provides the first field experimental test of vote swapping. Third party supporters seeking swap partners on TrumpTraders.org were randomly assigned to be matched or not matched. In the control group, 25% report voting for Clinton compared with 57% in the treatment group, for an Average Treatment Effect estimate of 32 percentage points.}}</ref>