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This book presents a simple geometric model of voting as a tool to analyze parliamentary roll call data. Each legislator is represented by one point and each roll call is represented by two points that correspond to the policy consequences of voting Yea or Nay. On every roll call each legislator votes for the closer outcome point, at least probabilistically. These points form a spatial map that summarizes the roll calls. In this sense a spatial map is much like a road map because it visually depicts the political world of a legislature. The closeness of two legislators on the map shows how similar their voting records are, and the distribution of legislators shows what the dimensions are. These maps can be used to study a wide variety of topics including how political parties evolve over time, the existence of sophisticated voting and how an executive influences legislative outcomes.

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Book Details

ISBN: 9780521851947
ISBN-10: 0521851947
Format: Hardback
(228mm x 152mm x 23mm)
Pages: 248
Imprint: Cambridge University Press
Publisher: Cambridge University Press
Publish Date: 11-Apr-2005
Country of Publication: United Kingdom

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Author Biography - Keith T. Poole

Keith T. Poole is a Professor of Political Science at the University of California, San Diego. He is the author or coauthor of over 40 articles as well as the coauthor of Congress: A Political-Economic History of Roll Call Voting and Income Redistribution and the Realignment of American Politics.

Books By Author Keith T. Poole

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Spatial Models of Parliamentary Voting by Keith T. Poole

Spatial Models of Parliamentary Voting

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