The Hunt for Party Discipline in Congress

TitleThe Hunt for Party Discipline in Congress
Publication TypeJournal Article
Year of Publication2001
AuthorsMcCarty N, Poole KT, Rosenthal H
JournalAmerican Political Science Review
Pagination - 687
Date PublishedSeptember 2001
ISBN Number0003-0554, 0003-0554
Keywords9089: government/political systems; legislatures, article, Legislative Bodies, Legislators, Partisanship, Political parties, Voting Behavior
AbstractWe analyze party discipline in the House of Representatives between 1947 & 1998. The effects of party pressures can be represented in a spatial model by allowing each party to have its own cutting line on roll call votes. Adding a second cutting line makes, at best, a marginal improvement over the standard single-line model. Analysis of legislators who switch parties shows, however, that party discipline is manifest in the location of the legislator's ideal point. In contrast to our approach, we find that the Snyder-Groseclose method of estimating the influence of party discipline is biased toward exaggerating party effects. 4 Tables, 9 Figures, 2 Appendixes, 23 References. Adapted from the source document.