Communities’ susceptibility to collusion in the Portuguese Procurement System: An analysis of communities generated in a co-bidding firm-to-firm network

Detalhes bibliográficos
Autor(a) principal: Pinto, Diogo Bulhosa da Cruz
Data de Publicação: 2024
Tipo de documento: Dissertação
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/164852
Resumo: Dissertation presented as the partial requirement for obtaining a Master's degree in Data Science and Advanced Analytics, specialization in Business Analytics
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spelling Communities’ susceptibility to collusion in the Portuguese Procurement System: An analysis of communities generated in a co-bidding firm-to-firm networkPublic ProcurementNetwork ScienceLouvain AlgorithmPortugalDomínio/Área Científica::Ciências Naturais::Ciências da Computação e da InformaçãoDissertation presented as the partial requirement for obtaining a Master's degree in Data Science and Advanced Analytics, specialization in Business AnalyticsPublic procurement plays a crucial role in economic systems, by shaping infrastructure development and delivering essential public services. However, the susceptibility of these systems to corruption poses a grave threat, potentially leading to substantial economic losses. Firms can exploit these vulnerabilities by orchestrating cartels to manipulate and control the market dynamics. Recognizing the importance of such risks, we acquired data from contracts within the Portuguese public procurement system. Using this dataset, a firm-to-firm co-bidding network was constructed, to which the Louvain Algorithm was applied to identify distinct communities. Subsequently we analyse these communities employing diverse methods such as Diversity Simpson's Index, a set of Network Measures such as Modularity and Average Clustering Coefficient, Topological Metrics like Coherence and Exclusivity, and Performance Metrics related to contract awards and final values. With this analysis we aim to characterize and evaluate the susceptibility of the Portuguese Procurement System to collusion.Pinheiro, Flávio Luís PortasDamásio, Bruno Miguel PintoRUNPinto, Diogo Bulhosa da Cruz2024-03-13T11:37:12Z2024-02-022024-02-02T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10362/164852TID:203544463enginfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-18T01:46:41Zoai:run.unl.pt:10362/164852Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T04:02:02.532817Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Communities’ susceptibility to collusion in the Portuguese Procurement System: An analysis of communities generated in a co-bidding firm-to-firm network
title Communities’ susceptibility to collusion in the Portuguese Procurement System: An analysis of communities generated in a co-bidding firm-to-firm network
spellingShingle Communities’ susceptibility to collusion in the Portuguese Procurement System: An analysis of communities generated in a co-bidding firm-to-firm network
Pinto, Diogo Bulhosa da Cruz
Public Procurement
Network Science
Louvain Algorithm
Portugal
Domínio/Área Científica::Ciências Naturais::Ciências da Computação e da Informação
title_short Communities’ susceptibility to collusion in the Portuguese Procurement System: An analysis of communities generated in a co-bidding firm-to-firm network
title_full Communities’ susceptibility to collusion in the Portuguese Procurement System: An analysis of communities generated in a co-bidding firm-to-firm network
title_fullStr Communities’ susceptibility to collusion in the Portuguese Procurement System: An analysis of communities generated in a co-bidding firm-to-firm network
title_full_unstemmed Communities’ susceptibility to collusion in the Portuguese Procurement System: An analysis of communities generated in a co-bidding firm-to-firm network
title_sort Communities’ susceptibility to collusion in the Portuguese Procurement System: An analysis of communities generated in a co-bidding firm-to-firm network
author Pinto, Diogo Bulhosa da Cruz
author_facet Pinto, Diogo Bulhosa da Cruz
author_role author
dc.contributor.none.fl_str_mv Pinheiro, Flávio Luís Portas
Damásio, Bruno Miguel Pinto
RUN
dc.contributor.author.fl_str_mv Pinto, Diogo Bulhosa da Cruz
dc.subject.por.fl_str_mv Public Procurement
Network Science
Louvain Algorithm
Portugal
Domínio/Área Científica::Ciências Naturais::Ciências da Computação e da Informação
topic Public Procurement
Network Science
Louvain Algorithm
Portugal
Domínio/Área Científica::Ciências Naturais::Ciências da Computação e da Informação
description Dissertation presented as the partial requirement for obtaining a Master's degree in Data Science and Advanced Analytics, specialization in Business Analytics
publishDate 2024
dc.date.none.fl_str_mv 2024-03-13T11:37:12Z
2024-02-02
2024-02-02T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10362/164852
TID:203544463
url http://hdl.handle.net/10362/164852
identifier_str_mv TID:203544463
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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