The Salience Rescue
Tags: election-science, ballot-design, cognitive-bias, equity
Analyzing 29,000+ local elections in California (1995โ2021) where ballot order is randomized each cycle, a 2025 Harvard study found that all candidates benefit from being listed first. That's the known primacy effect. The unknown part: the benefit is wildly asymmetric. Non-white women gain nearly 9 percentage points in win probability from first-position placement. White men gain far less.
The mechanism is not simple primacy bias โ it is differential salience rescue. First-position listing counteracts an existing cognitive "overlooking" pattern that disproportionately affects candidates whose names are unfamiliar or coded as out-group. Being first doesn't just add visibility; it compensates for invisibility that was already operating.
Randomization is typically understood as removing bias โ shuffling away any systematic advantage. This finding shows randomization can function as a compensatory mechanism that amplifies the visibility of those most subject to being overlooked. The intervention doesn't treat everyone equally; it treats equally an inequality that existed before the intervention. The randomization was designed as a fairness tool โ everyone gets each position equally often. But its deeper function is therapeutic: it periodically rescues candidates from a cognitive shadow they didn't create and can't escape on their own. Neutrality, applied to an uneven surface, produces asymmetric effects. That's not a flaw. That's the mechanism working.