Public Opinion and Voting Behavior

PollBasePro: Daily Estimates of Aggregate Voting Intention in Britain from 1955 to the Present Day



Political scientists often use public opinion polls to test their theories. Yet these data present some difficulties. First, they are noisy. Second, they occur at irregular intervals. Third, they measure both public preferences and pollsters’ survey design choices. We introduce a new dataset, PollBasePro, that accounts for these issues. It includes voting intention estimates for each of Britain’s three largest parties on each day between the 1955 general election and the present. As the dataset covers 24,106 days in total, it is perhaps more comprehensive than any other existing time series of British political opinion. We then use our estimates to test a question of pressing importance: how daily deaths attributable to COVID-19 have influenced support for the governing Conservative Party.

Version notes

Removed applied example and focussed more on methods used to produce our estimates


Thumbnail image of document.pdf

Supplementary weblinks

Github Repository
Link to GitHub repository where you can find and download the data


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