The timeline of elections: a comparative perspective

Abstract

Scholars are only beginning to understand the evolution of electoral sentiment over time. How do preferences come into focus over the electoral cycle in different countries? Do they evolve in patterned ways? Does the evolution vary across countries? This paper addresses these issues. We consider differences in political institutions and how they might impact voter preferences over the course of the election cycle. We then outline an empirical analysis relating support for parties or candidates in pre-election polls to their final vote. The analysis relies on over 26,000 vote intention polls in 45 countries since 1942, covering 312 discrete electoral cycles. Our results indicate that early polls contain substantial information about the final result but that they become increasingly informative over the election cycle. Although the degree to which this is true varies across countries in important and understandable ways given differences in political institutions, the pattern is strikingly general.

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ORCID for Will Jennings: orcid.org/0000-0001-9007-8896

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