Structure and evolution of a European Parliament via a network and correlation analysis

Elena Puccio, Michele Tumminello, Antti Pajala, Jyrki Piilo

Risultato della ricerca: Articlepeer review

1 Citazioni (Scopus)

Abstract

We present a study of the network of relationships among elected members of the Finnish parliament, based on a quantitative analysis of initiative co-signatures, and its evolution over 16 years. To understand the structure of the parliament, we constructed a statistically validated network of members, based on the similarity between the patterns of initiatives they signed. We looked for communities within the network and characterized them in terms of membersâ attributes, such as electoral district and party. To gain insight on the nested structure of communities, we constructed a hierarchical tree of members from the correlation matrix. Afterwards, we studied parliament dynamics yearly, with a focus on correlations within and between parties, by also distinguishing between government and opposition. Finally, we investigated the role played by specific individuals, at a local level. In particular, whether they act as proponents who gather consensus, or as signers. Our results provide a quantitative background to current theories in political science. From a methodological point of view, our network approach has proven able to highlight both local and global features of a complex social system.
Lingua originaleEnglish
pagine (da-a)167-185
Numero di pagine19
RivistaPHYSICA. A
Volume462
Stato di pubblicazionePublished - 2016

All Science Journal Classification (ASJC) codes

  • Statistics and Probability
  • Condensed Matter Physics

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