Bibliographic record
Abstract
Pradeep Chhibber and Ken Kollman rely on historical data spanning back to the eighteenth century from Canada, Great Britain, India, and the United States to revise our understanding of why a country's party system consists of national or regional parties. They demonstrate that the party systems in these four countries have been shaped by the authority granted to different levels of government. Departing from the conventional focus on social divisions or electoral rules in determining whether a party system will consist of national or regional parties, they argue instead that national party systems emerge when economic and political power resides with the national government. Regional parties thrive when authority in a nation-state rests with provincial or state governments. The success of political parties therefore depends on which level of government voters credit for policy outcomes. National political parties win votes during periods when political and economic authority rests with the national government, and lose votes to regional and provincial parties when political or economic authority gravitates to lower levels of government. This is the first book to establish a link between federalism and the formation of national or regional party systems in a comparative context. It places contemporary party politics in the four examined countries in historical and comparative perspectives, and provides a compelling account of long-term changes in these countries. For example, the authors discover a surprising level of voting for minor parties in the United States before the 1930s. This calls into question the widespread notion that the United States has always had a two-party system. In fact, only recently has the two-party system become predominant.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.003 | 0.005 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.002 | 0.002 |
| Science and technology studies | 0.004 | 0.003 |
| Scholarly communication | 0.005 | 0.003 |
| Open science | 0.001 | 0.004 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.008 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".