100 citations · 168 across the 7 of their papers we have counts for
7 papers
The Concept of Decentralization Through Time and Disciplines: A Quantitative Exploration
Gabriele Di Bona, Alberto Bracci, Nicola Perra +2
Decentralization is a pervasive concept found across disciplines, including Economics, Political Science, and Computer Science, where it is used in distinct yet interrelated ways.…
Heterogeneous rarity patterns drive price dynamics in NFT collections
Amin Mekacher, Alberto Bracci, Matthieu Nadini +4
We quantify Non Fungible Token (NFT) rarity and investigate how it impacts market behaviour by analysing a dataset of 3.7M transactions collected between January 2018 and June 2022…
Macroscopic properties of buyer-seller networks in online marketplaces
Alberto Bracci, Jörn Boehnke, Abeer ElBahrawy +3
Online marketplaces are the main engines of legal and illegal e-commerce, yet their empirical properties are poorly understood due to the absence of large-scale data. We analyze tw…
Emergence and structure of decentralised trade networks around dark web marketplaces
Matthieu Nadini, Alberto Bracci, Abeer ElBahrawy +3
Dark web marketplaces (DWMs) are online platforms that facilitate illicit trade among millions of users generating billions of dollars in annual revenue. Recently, two interview-ba…
The illicit trade of COVID-19 vaccines on the dark web
Alberto Bracci, Matthieu Nadini, Maxwell Aliapoulios +5
Early analyses revealed that dark web marketplaces (DWMs) started offering COVID-19 related products (e.g., masks and COVID-19 tests) as soon as the COVID-19 pandemic started, when…
Dark Web Marketplaces and COVID-19: before the vaccine
Alberto Bracci, Matthieu Nadini, Maxwell Aliapoulios +5
The COVID-19 pandemic has reshaped the demand for goods and services worldwide. The combination of a public health emergency, economic distress, and misinformation-driven panic hav…
Evaluating the impact of PrEP on HIV and gonorrhea on a networked population of female sex workers
Alba Bernini, Elodie Blouzard, Alberto Bracci +6
Sexual contacts are the main spreading route of HIV. This puts sex workers at higher risk of infection even in populations where HIV prevalence is moderate or low. Alongside condom…