party_nationalization_score: Party Nationalization Score (PNS)

Description Usage Arguments Value Examples

Description

Party nationalization score is a measure for the uniformity of vote share of a party over subnational units (provinces for Ecuador). It is computed as 1 minus Gini inequality index (Jones and Mainwaring, 2003)

PNS = 1 - G

G = (2*sum(i*xi)) / (n*sum(xi)) - (n + 1)/n

in which G is the Gini inequality index, xi is the vote share in the province ith, indexed in non-decreasing order (xi <= xi+1) i is an index from 1 to n n is the total of provinces

Party nationalization score is a number from 0 to 1, a low value (near 0) means a low level of nationalization, i.e. heterogeneous distribution of vote shares in subnational territorial units.

High score (near 1) indicates a high level of nationalization, i.e. homogeneous distribution of vote shares in subnational territorial units.

See psns function for further information.

Developed by Jorge Albuja Delgado ([email protected]).

Usage

1
pns(subnational_shares)

Arguments

subnational_shares

vector of vote shares per subnational unit (province) for a single party

Value

A single numeric with party nationalization score of a party, in the interval [0, 1]

Examples

1
pns(subnational_shares = c(0.3, 0.1, 0.2))

electoral documentation built on Oct. 25, 2018, 9:06 a.m.