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The Basic Arithmetic of Legislative Decisions

Basic Arithmetic of Legislative Decisions

Bibliographic Data

ID6232487
AuthorsMichael Laver (0000-0001-7515-9831, New York University), Kenneth Benoit (0000-0002-0797-564X, London School of Economics and Trinity College Dublin)
Year2015
Volume59
Issue2
Pages275-291
Publication date2015-02-01
Peer ReviewedYes
Open AccessYes
TypeARTICLE
VenueAmerican Journal of Political Science (JOURNAL)
Journal identifiersISSN: 0092-5853 • E-ISSN: 1540-5907
PublisherWiley (PUBLISHER • GB)
DOI10.1111/ajps.12111
OpenAlexW2121665893
LanguageEN
Citations received29
References cited31

Despite the huge number of possible seat distributions following a general election in a multiparty parliamentary democracy, there are far fewer classes of seat distribution sharing important strategic features. We define an exclusive and exhaustive partition of the universe of theoretically possible n-party systems into five basic classes, the understanding of which facilitates more fruitful modeling of legislative politics, including government formation. Having defined a partition of legislative party systems and elaborated logical implications of this partition, we classify the population of postwar European legislatures. We show empirically that many of these are close to critical boundary conditions, so that stochastic processes involved in any legislative election could easily flip the resulting legislature from one type to another. This is of more than hypothetical interest, since we also show that important political outcomes differ systematically between the classes of party systems—outcomes that include duration of government formation negotiations, type of coalition cabinet that forms, and stability of the resulting government

Cabinet (room · Democracy · Distribution (mathematics · Economics · Geography · Government (linguistics · Legislature · Mathematical economics · Negotiation · Partition (number theory · Political science · Politics · Population · Presumption · Sociology · Computer Science · Electoral Systems and Political Participation · Game Theory and Applications · Game Theory and Voting Systems · Law · Mathematics

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Unique citing works29
Citations per year2,64
Citation span2015 - 2025 (11)
Citation velocityrecent
Highly citedNo
Citation typesNeutral: 29

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