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Author: search.filters.author.Flávio L. PinheiroStart date: 2020

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    Item type:Publication,
    Augmenting Firm Diversification Behavior Prediction with Graph Embeddings
    (Springer Nature Switzerland, 2026)
    Niclas F. Sturm
    ;
    CANDIA VALLEJOS, CRISTIAN ESTEBAN  
    ;
    Bruno Damásio
    ;
    Flávio L. Pinheiro
      1
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    Item type:Publication,
    Interconnectedness in education systems
    (Edward Elgar Publishing Limited, 2025-12-11)
    CANDIA VALLEJOS, CRISTIAN ESTEBAN  
    ;
    Javier Pulgar
    ;
    Flávio L. Pinheiro
      1
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    High earnings through firm influence: the role of hierarchical structures in public procurement
    (Springer Science and Business Media LLC, 2025-03-31)
    Niclas Frederic Sturm
    ;
    CANDIA VALLEJOS, CRISTIAN ESTEBAN  
    ;
    Bruno Damásio
    ;
    Flávio L. Pinheiro
    Scopus© Citations 2  2
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    From co-location patterns to an informal social network of gig economy workers
    (2023)
    Gustavo Pilatti
    ;
    CANDIA VALLEJOS, CRISTIAN ESTEBAN  
    ;
    Alessandra Montini
    ;
    Flávio L. Pinheiro
    <jats:title>Abstract</jats:title><jats:p>The labor market has transformed with the advent of the gig economy, characterized by short-term and flexible work arrangements facilitated by online platforms. As this trend becomes increasingly prevalent, it presents unique opportunities and challenges. In this manuscript, we comprehensively characterize the social networks of gig economy workers in each of the 15 cities studied. Our analysis reveals a scaling relationship between networks and the city population. In particular, we note the high level of modularity of the networks, and we argue that it results from the natural specialization of couriers along different areas of the cities. Furthermore, we show that degree and betweenness centrality is positively correlated with income but not with tenure. Our findings shed new light on the social organization of the gig economy workers and provide valuable insights for the management and design of gig economy platforms.</jats:p>
      36Scopus© Citations 5
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    Item type:Publication,
    Scaling behavior of public procurement activity
    (2021)
    António Curado
    ;
    Bruno Damásio
    ;
    Sara Encarnação
    ;
    CANDIA VALLEJOS, CRISTIAN ESTEBAN  
    ;
    Flávio L. Pinheiro
    Public procurement refers to the purchase by public sector entities—such as government departments or local authorities—of Services, Goods, or Works. It accounts for a significant share of OECD countries’ expenditures. However, while governments are expected to execute them as efficiently as possible, there is a lack of methodologies for an adequate comparison of procurement activity between institutions at different scales, which represents a challenge for policymakers and academics. Here, we propose using methods borrowed from urban scaling laws literature to study public procurement activity among 278 Portuguese municipalities between 2011 and 2018. We find that public procurement expenditure scales sublinearly with population size, indicating an economy of scale for public spending as cities increase their population size. Moreover, when looking at the municipal Scale-Adjusted Indicators (the deviations from the scaling law) by contract categories—Works, Goods, and Services—we are able to identify a richer local characterisation of municipalities based on the similarity of procurement activity. These results make up a framework for quantitatively studying local public expenditure by enabling policymakers a more appropriate foundation for comparative analysis.
      3Scopus© Citations 7