000261277 001__ 261277
000261277 005__ 20190619220055.0
000261277 0247_ $$a10.1371/journal.pone.0208227$$2doi
000261277 037__ $$aARTICLE
000261277 245__ $$aThe geographic evolution of political cleavages in Switzerland: A network approach to assessing levels and dynamics of polarization between local populations
000261277 260__ $$c2018-11-29
000261277 269__ $$a2018-11-29
000261277 336__ $$aJournal Articles
000261277 520__ $$aScholarly studies and common accounts of national politics enjoy pointing out the resilience of ideological divides among populations. Building on the image of political cleavages and geographic polarization, the regionalization of politics has become a truism across Northern democracies. Left unquestioned, this geography plays a central role in shaping electoral and referendum campaigns. In Europe and North America, observers identify recurring patterns dividing local populations during national votes. While much research describes those patterns in relation to ethnicity, religious affiliation, historic legacy and party affiliation, current approaches in political research lack the capacity to measure their evolution over time or other vote subsets. This article introduces “Dyadic Agreement Modeling” (DyAM), a transdisciplinary method to assess the evolution of geographic cleavages in vote outcomes by implementing a metric of agreement/disagreement through Network Analysis. Unlike existing approaches, DyAM offers a stable measure for political agreement and disagreement—accounting for chance, statistically robust and remaining structurally independent from the number of entries and missing data. The method opens up to a range of statistical, structural and visual tools specific to Network Analysis and its usage across disciplines. In order to illustrate DyAM, I use more than 680,000 municipal outcomes from Swiss federal popular votes and assess the evolution of political cleavages across local populations since 1981. Results suggest that political congruence between Swiss local populations increased in the last forty years, while regional political factions and linguistic alignments have lost their salience to new divides. I discuss how choices about input parameters and data subsets nuance findings, and consider confounding factors that may influence conclusions over the dynamic equilibrium of national politics and the strengthening effect of globalization on democratic institutions.
000261277 536__ $$cP1ELP1_151946$$aFNS
000261277 542__ $$fCC BY
000261277 6531_ $$aDyAM
000261277 6531_ $$aDyadic Agreement Modeling
000261277 6531_ $$aSwitzerland
000261277 6531_ $$aPolitics
000261277 6531_ $$aCommunes
000261277 6531_ $$aMunicipalities
000261277 6531_ $$aLocal population
000261277 6531_ $$aPolarization
000261277 6531_ $$aCongruence
000261277 6531_ $$aDisagreement
000261277 6531_ $$aAgreement
000261277 6531_ $$aKrippendorff
000261277 6531_ $$aSocial Network Analysis
000261277 6531_ $$aNetwork Analysis
000261277 6531_ $$aSNA
000261277 6531_ $$aVotations
000261277 6531_ $$aPopular votes
000261277 6531_ $$aDirect democracy
000261277 6531_ $$aGeography
000261277 6531_ $$aUrban planning
000261277 700__ $$aKoseki, Shin Alexandre$$0245221$$g173276
000261277 773__ $$tPLoS One
000261277 8560_ $$fshin.koseki@epfl.ch
000261277 909C0 $$xU13327$$pHRC$$0261260$$mvalerie.pahud@epfl.ch$$zBlanc, Chantal
000261277 909C0 $$yApproved$$pALICE$$xU11533$$mjaime.ruiz@epfl.ch$$0252389
000261277 909C0 $$xU10254$$pLAC$$mchantal.blanc@epfl.ch$$0252215
000261277 909CO $$particle$$pENAC$$ooai:infoscience.epfl.ch:261277
000261277 960__ $$ashin.koseki@epfl.ch
000261277 961__ $$apierre.devaud@epfl.ch
000261277 973__ $$aEPFL$$sPUBLISHED$$rREVIEWED
000261277 980__ $$aARTICLE
000261277 981__ $$aoverwrite