Volume 1Labels, sorting and partisan feeling

Party identification and ideological labels drew closer together in American surveys. The volume asks what the labels contain, in the United States and about 100 countries, how the alignment changed across birth cohorts, and how it differs from partisans' feelings toward the other party.

Volume 2Coalitions and political differences

Participation, group coalitions, issues and attitudes toward institutions and democracy, 1948 to 2024. Party gaps on these measures differ in size and timing, and some reverse with control of the presidency, so no single trend describes them.

Volume 3Votes, giving and places

Election returns, donor records and county data count different populations at different scales. The volume follows the vote from counties to precincts and down the ballot, compares donors with voters, and returns from places to the people who live in them.

Planned

Climate and the environment

Planned This question is on the research agenda, outside the main reading sequence. Planned companion to Chapter 4.7, Sort dates by attitude.

The question

How large is the partisan gap on climate, and is it unusual among rich democracies?

The data

Cooperative Election StudyYears: 2006-2024 (every year; self-reported turnout is available in the 10 even years)
European Social SurveyYears: 2002-2023 (rounds 1 to 11; round 11 was fielded in 2023 and 2024)
NationscapeYears: 2019-07-18 to 2021-04-15 (85 weekly waves)
World Values Survey and EVSYears: 1981-2023 (7 unified waves)

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The scope

Individuals Each row of the data is a person, so results describe people and can be compared across groups.

The question belongs to Part IV, Issues move on different schedules, coalitions and political differences. Its unit of analysis is individuals. See how the book treats evidence.

The part has an explorer: Issues.