Information and campaign effects in the 2023 Australian Voice referendum

Abstract

ABSTRACT Referendums differ from general elections in the choices that are offered to voters and in the cues that are available to them to reach a decision. This difference makes the quantity and quality of the information that is available during a referendum campaign crucial to the outcome. This paper uses a unique panel survey to examine the role of the campaign in shaping the outcome of the October 2023 Voice to Parliament referendum. We find that the political cues offered to voters – reflected most prominently in voters’ views about the major party leaders – were the most important campaign effects shaping the result. Interpersonal communication also mattered, but government-supplied information and mass media exposure had no effect. The findings highlight the central role that a campaign driven by elites plays in shaping the outcome of a referendum.