AP® United States Government and Politics · Unit 5 · Topic 5.1
Models of Voting Behavior
Political scientists explain voter decisions with four models: rational choice (self-interest), retrospective (past performance), prospective (future promises), and party-line (party loyalty as shortcut). Most real votes blend several.
Picture one ballot with a governor's race on it. A voter using rational choice asks what each candidate will personally do for her: lower her taxes, protect her job. A voter using retrospective voting looks backward: has the incumbent's term left things better or worse, judging by jobs, crime, prices. A voter using prospective voting looks forward instead, weighing the promises and platforms candidates offer for next term. And a voter using party-line voting skips the research entirely and picks the candidate from the party she always backs. Four people, one ballot, four different logics, which is exactly why two neighbors staring at the same candidate can land in opposite places or reach the same vote for unrelated reasons.
Retrospective voting turns elections into referendums because it makes the sitting party's record the whole question. A bad economy, a war gone wrong, a scandal: all of it gets bundled into a verdict on whoever currently holds power, rewarded with another term or punished with removal, regardless of what challengers actually propose. Party identification works differently. It functions as a cognitive shortcut: a voter who has learned over years what her party generally stands for can reasonably predict that an unfamiliar candidate from that party will roughly share her priorities, without needing to study every position paper.
This matters for the unit because these models explain why turnout and persuasion efforts target different voters differently. Campaigns chase swing voters with prospective appeals and persuadable retrospective judgments, while parties mobilize their base through identification alone, a distinction that shapes how money, media, and get-out-the-vote strategy get spent later in the unit.
Key terms
- Rational choice voting
- Deciding based on which candidate's policies most benefit the voter personally.
- Retrospective voting
- Judging candidates by evaluating the incumbent party's past performance in office.
- Prospective voting
- Judging candidates by comparing their proposed future policies and platforms.
- Party-line voting
- Choosing a candidate based on shared party affiliation rather than specific issue research.
- Party identification
- A voter's long-term psychological attachment to a political party.
Watch it explained
- How it worksWalk me through rational choice, retrospective, prospective, and party-line voting on one ballot.
- How it worksHow does retrospective voting turn an election into a referendum on the last four years?
- How it worksHow does party identification act as a shortcut when a voter knows nothing about a candidate?
- Common mistakeWhy isn't straight-ticket voting evidence that voters are not thinking?
Check yourself
End of topic.