Characterization of the Chilean Public Procurement Ecosystem Using Social Network Analysis

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dc.contributor.authorLeiva, F.
dc.contributor.authorTorres, R.
dc.contributor.authorNicolis, o.
dc.contributor.authorFe, R.
dc.date.accessioned2021-08-26T19:44:15Z
dc.date.available2021-08-26T19:44:15Z
dc.date.issued2020
dc.descriptionIndexación: Scopus.es
dc.description.abstract'Mercado Público' is a Chilean electronic platform used for purchasing processes by Chilean public organizations for the last two decades. The main aim of this study is to characterize the Chilean public procurement ecosystem by using social network analysis to detect the main communities of suppliers based on who awarded the tenders. To do this, we use a methodology that first represents the bidder-supplier relationship as a bipartite graph using purchase order information. Then we project the bipartite graph onto a monopartite graph of suppliers. We end by detecting the main supplier communities using a modularity algorithm. When we applied this methodology to the large tender segment in the Chilean public procurement market over a period of four years, we successfully detected the five largest communities and the micro and small companies which had the greatest rate of participation over time.es
dc.description.urihttps://ieeexplore.ieee.org/document/9149588
dc.identifier.citationIEEE Access, Volume 8, Pages 138846 - 138858, 2020, Article number 9149588es
dc.identifier.doiDOI: 10.1109/ACCESS.2020.3011947
dc.identifier.issn2169-3536
dc.identifier.urihttp://repositorio.unab.cl/xmlui/handle/ria/20001
dc.language.isoenes
dc.publisherInstitute of Electrical and Electronics Engineers Inc.es
dc.rights.licenseAttribution 4.0 International (CC BY 4.0)
dc.subjectBipartite graphes
dc.subjectcommunitieses
dc.subjectmodularityes
dc.subjectpublic procuremenes
dc.subjecttenderses
dc.subjectCommunity Detectiones
dc.subjectGraph Clusteringes
dc.subjectModularityes
dc.titleCharacterization of the Chilean Public Procurement Ecosystem Using Social Network Analysises
dc.typeArtículoes
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