Effective number of parties
The effective number of parties is a concept introduced by Laakso and Taagepera (1979) which provides for an adjusted number of political parties in a country's party system. The idea behind this measure is to count parties and, at the same time, to weight the count by their relative strength. The relative strength refers to their vote share ("effective number of electoral parties") or seat share in the parliament ("effective number of parliamentary parties"). This measure is especially useful when comparing party systems across countries, as is done in the field of political science. The number of parties equals the effective number of parties only when all parties have equal strength. In any other case, the effective number of parties is lower than the actual number of parties. The effec
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Effective number of parties
The effective number of parties is a concept introduced by Laakso and Taagepera (1979) which provides for an adjusted number of political parties in a country's party system. The idea behind this measure is to count parties and, at the same time, to weight the count by their relative strength. The relative strength refers to their vote share ("effective number of electoral parties") or seat share in the parliament ("effective number of parliamentary parties"). This measure is especially useful when comparing party systems across countries, as is done in the field of political science. The number of parties equals the effective number of parties only when all parties have equal strength. In any other case, the effective number of parties is lower than the actual number of parties. The effec
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El nombre efectiu de partits p ...... ris) de cada partit al quadrat
@ca
L'indice o formula di Laakso-T ...... ice di Laakso-Taagepera ovvero
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The effective number of partie ...... pation ratio (IPR) in physics.
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Эффективное число партий (англ ...... политических партий в политии.
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El nombre efectiu de partits p ...... tació d'un sistema de partits.
@ca
L'indice o formula di Laakso-T ...... ce di diversità di Simpson D'.
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The effective number of partie ...... l number of parties. The effec
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Эффективное число партий (англ ...... олитологии Арендом Лейпхартом.
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label
Effective number of parties
@en
Indice di Laakso-Taagepera
@it
Nombre efectiu de partits polítics
@ca
Эффективное число партий
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유효정당수
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