English
Related papers

Related papers: Corruption Risk in Contracting Markets: A Network …

200 papers

We inspect a possible clustering structure of the corruption perception among 134 countries. Using the average linkage clustering, we uncover a well-defined hierarchy in the relationships among countries. Four main clusters are identified…

Economics · Quantitative Finance 2015-03-06 Michal Paulus , Ladislav Kristoufek

Often, corruption is described as taking place within or supported by a network: A collection of individuals structured in such a way as to enable the transaction of bribes for favors. Surprisingly, despite the network nomenclature,…

Physics and Society · Physics 2019-09-18 Carel F. W. Peeters

Studying corruption presents unique challenges. Recent work in the spirit of computational social science exploits newly available data and methods to give a fresh perspective on this important topic. In this chapter we highlight some of…

Physics and Society · Physics 2022-02-04 Isabela Villamil , János Kertész , Johannes Wachs

In recent years, the analysis of economic crime and corruption in procurement has benefited from integrative studies that acknowledge the interconnected nature of the procurement ecosystem. Following this line of research, we present a…

Physics and Society · Physics 2023-07-25 J. R. Nicolás-Carlock , I. Luna-Pla

Corruption is a social plague: gains accrue to small groups, while its costs are borne by everyone. Significant variation in its level between and within countries suggests a relationship between social structure and the prevalence of…

Social and Information Networks · Computer Science 2019-08-26 Johannes Wachs , Taha Yasseri , Balázs Lengyel , János Kertész

We study corruption as a generalized epidemic process on the graph of social relationships. The main difference to classical epidemic processes is the strong nonlinear dependence of the transmission probability on the local density of…

Physics and Society · Physics 2007-05-23 Ph. Blanchard , A. Krueger , T. Krueger , P. Martin

Corruption is notoriously widespread in data collection. Despite extensive research, the existing literature predominantly focuses on specific settings and learning scenarios, lacking a unified view of corruption modelization and…

Machine Learning · Computer Science 2026-05-19 Laura Iacovissi , Nan Lu , Robert C. Williamson

Neural Networks are sensitive to various corruptions that usually occur in real-world applications such as blurs, noises, low-lighting conditions, etc. To estimate the robustness of neural networks to these common corruptions, we generally…

Machine Learning · Computer Science 2021-05-27 Alfred Laugros , Alice Caplier , Matthieu Ospici

Corruption crimes demand highly coordinated actions among criminal agents to succeed. But research dedicated to corruption networks is still in its infancy and indeed little is known about the properties of these networks. Here we present a…

Corruptive behaviour in politics limits economic growth, embezzles public funds, and promotes socio-economic inequality in modern democracies. We analyse well-documented political corruption scandals in Brazil over the past 27 years,…

Physics and Society · Physics 2018-12-12 Haroldo V. Ribeiro , Luiz G. A. Alves , Alvaro F. Martins , Ervin K. Lenzi , Matjaz Perc

Corruption studies must evolve to match the complexity of the modern world. Here, we present three main problems in corruption analysis that need to be address: the complexity of the corruption phenomenon itself and its context, the…

Physics and Society · Physics 2021-12-28 José R. Nicolás-Carlock , Issa Luna-Pla

In supervised learning one wishes to identify a pattern present in a joint distribution $P$, of instances, label pairs, by providing a function $f$ from instances to labels that has low risk $\mathbb{E}_{P}\ell(y,f(x))$. To do so, the…

Machine Learning · Statistics 2015-07-07 Brendan van Rooyen , Robert C. Williamson

We investigate an agent-based model for the emergence of corruption in public contracts. There are two types of agents: business people and public servants. Both business people and public servants can adopt two strategies: corrupt or…

Physics and Society · Physics 2023-04-06 Pablo Valverde , Jaime Fernandez , Edwin Buenaño , Juan Carlos González-Avella , Mario Cosenza

Political corruption is inherently an affiliation process linking agents to corruption cases; yet it is often studied via one-mode projections that connect co-offenders within the same scandal, implying a loss of information that…

Physics and Society · Physics 2026-01-14 Monica V. Prates , Arthur A. B. Pessa , Sebastian Goncalves , Matjaz Perc , Haroldo V. Ribeiro

Detecting fraud and corruption in public procurement remains a major challenge for governments worldwide. Most research to-date builds on domain-knowledge-based corruption risk indicators of individual contract-level features and some also…

Machine Learning · Computer Science 2025-12-29 Martí Medina-Hernández , Janos Kertész , Mihály Fazekas

Synthetic corruptions gathered into a benchmark are frequently used to measure neural network robustness to distribution shifts. However, robustness to synthetic corruption benchmarks is not always predictive of robustness to distribution…

Computer Vision and Pattern Recognition · Computer Science 2021-11-19 Alfred Laugros , Alice Caplier , Matthieu Ospici

The main purpose of this paper is to formalize the modelling process, analysis and mathematical definition of corruption when entering into a contract between principal agent and producers. The formulation of the problem and the definition…

Economics · Quantitative Finance 2018-04-25 Oleg Malafeyev , Olga Koroleva , Dmitriy Prusskiy , Olga Zenovich

This paper aims to identify the robust determinants of corruption after integrating out the effects of spatial spillovers in corruption levels between countries. In other words, we want to specify which variables play the most critical role…

General Economics · Economics 2021-05-28 Sajad Rahimian

The insufficient understanding of the credit network structure was recognized as a key factor for regulators' underestimation of the destructive systematic risk during the financial crisis that started in 2007. The existing credit network…

Risk Management · Quantitative Finance 2018-12-05 Xuan Lu , Li Huang , Kangjuan Lyu

Corruption has been an important issue as it becomes obstacle to achieve the better and more efficient economic governmental system. The paper defines corruption in two ways, as state capture and administrative corruption to grasp the…

Adaptation and Self-Organizing Systems · Physics 2007-05-23 Hokky Situngkir
‹ Prev 1 2 3 10 Next ›