Search Results - "Caldarelli, Guido"

Pathways towards instability in financial networks by Bardoscia, Marco, Battiston, Stefano, Caccioli, Fabio, Caldarelli, Guido

“…Following the financial crisis of 2007–2008, a deep analogy between the origins of instability in financial systems and complex ecosystems has been pointed…”
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DebtRank: A Microscopic Foundation for Shock Propagation by Bardoscia, Marco, Battiston, Stefano, Caccioli, Fabio, Caldarelli, Guido

“…The DebtRank algorithm has been increasingly investigated as a method to estimate the impact of shocks in financial networks, as it overcomes the limitations…”
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Science vs conspiracy: collective narratives in the age of misinformation by Bessi, Alessandro, Coletto, Mauro, Davidescu, George Alexandru, Scala, Antonio, Caldarelli, Guido, Quattrociocchi, Walter

“…The large availability of user provided contents on online social media facilitates people aggregation around shared beliefs, interests, worldviews and…”
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DebtRank: Too Central to Fail? Financial Networks, the FED and Systemic Risk by Battiston, Stefano, Puliga, Michelangelo, Kaushik, Rahul, Tasca, Paolo, Caldarelli, Guido

“…Systemic risk, here meant as the risk of default of a large portion of the financial system, depends on the network of financial exposures among institutions…”
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Opinion dynamics on interacting networks: media competition and social influence by Quattrociocchi, Walter, Caldarelli, Guido, Scala, Antonio

“…The inner dynamics of the multiple actors of the informations systems – i.e, T.V., newspapers, blogs, social network platforms, – play a fundamental role on…”
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A New Metrics for Countries' Fitness and Products' Complexity by Tacchella, Andrea, Cristelli, Matthieu, Caldarelli, Guido, Gabrielli, Andrea, Pietronero, Luciano

“…Classical economic theories prescribe specialization of countries industrial production. Inspection of the country databases of exported products shows that…”
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The Effects of Twitter Sentiment on Stock Price Returns by Ranco, Gabriele, Aleksovski, Darko, Caldarelli, Guido, Grčar, Miha, Mozetič, Igor

“…Social media are increasingly reflecting and influencing behavior of other complex systems. In this paper we investigate the relations between a well-known…”
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Measuring the intangibles: a metrics for the economic complexity of countries and products by Cristelli, Matthieu, Gabrielli, Andrea, Tacchella, Andrea, Caldarelli, Guido, Pietronero, Luciano

“…We investigate a recent methodology we have proposed to extract valuable information on the competitiveness of countries and complexity of products from trade…”
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Echo Chambers: Emotional Contagion and Group Polarization on Facebook by Del Vicario, Michela, Vivaldo, Gianna, Bessi, Alessandro, Zollo, Fabiana, Scala, Antonio, Caldarelli, Guido, Quattrociocchi, Walter

“…Recent findings showed that users on Facebook tend to select information that adhere to their system of beliefs and to form polarized groups – i.e., echo…”
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The spreading of misinformation online by Del Vicario, Michela, Bessi, Alessandro, Zollo, Fabiana, Petroni, Fabio, Scala, Antonio, Caldarelli, Guido, Stanley, H. Eugene, Quattrociocchi, Walter

“…The wide availability of user-provided content in online socialmedia facilitates the aggregation of people around common interests, worldviews, and narratives…”
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Mapping social dynamics on Facebook: The Brexit debate by Del Vicario, Michela, Zollo, Fabiana, Caldarelli, Guido, Scala, Antonio, Quattrociocchi, Walter

“…•A thorough quantitative analysis of users consumption patterns around Brexit.•Spontaneous emergence of echo chambers from users interaction with Facebook news…”
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Modeling confirmation bias and polarization by Del Vicario, Michela, Scala, Antonio, Caldarelli, Guido, Stanley, H. Eugene, Quattrociocchi, Walter

“…Online users tend to select claims that adhere to their system of beliefs and to ignore dissenting information. Confirmation bias, indeed, plays a pivotal role…”
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The statistical physics of real-world networks by Cimini, Giulio, Squartini, Tiziano, Saracco, Fabio, Garlaschelli, Diego, Gabrielli, Andrea, Caldarelli, Guido

“…In the past 15 years, statistical physics has been successful as a framework for modelling complex networks. On the theoretical side, this approach has…”
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Debunking in a world of tribes by Zollo, Fabiana, Bessi, Alessandro, Del Vicario, Michela, Scala, Antonio, Caldarelli, Guido, Shekhtman, Louis, Havlin, Shlomo, Quattrociocchi, Walter

“…Social media aggregate people around common interests eliciting collective framing of narratives and worldviews. However, in such a disintermediated…”
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Systemic risk from investment similarities by Delpini, Danilo, Battiston, Stefano, Caldarelli, Guido, Riccaboni, Massimo

“…Network theory proved recently to be useful in the quantification of many properties of financial systems. The analysis of the structure of investment…”
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Firms' challenges and social responsibilities during Covid-19: A Twitter analysis by Patuelli, Alessia, Caldarelli, Guido, Lattanzi, Nicola, Saracco, Fabio

“…This paper offers insights on the major issues and challenges firms face in the Covid-19 pandemic and their concerns for Corporate Social Responsibility (CSR)…”
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True scale-free networks hidden by finite size effects by Serafino, Matteo, Cimini, Giulio, Maritan, Amos, Rinaldo, Andrea, Suweis, Samir, Banavar, Jayanth R., Caldarelli, Guido

“…We analyze about 200 naturally occurring networks with distinct dynamical origins to formally test whether the commonly assumed hypothesis of an underlying…”
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Users Polarization on Facebook and Youtube by Bessi, Alessandro, Zollo, Fabiana, Del Vicario, Michela, Puliga, Michelangelo, Scala, Antonio, Caldarelli, Guido, Uzzi, Brian, Quattrociocchi, Walter

“…Users online tend to select information that support and adhere their beliefs, and to form polarized groups sharing the same view-e.g. echo chambers…”
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The price of complexity in financial networks by Battiston, Stefano, Caldarelli, Guido, May, Robert M., Roukny, Tarik, Stiglitz, Joseph E.

“…Financial institutions form multilayer networks by engaging in contracts with each other and by holding exposures to common assets. As a result, the default…”
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Multi-scale analysis of the community structure of the Twitter discourse around the Italian general elections of September 2022 by Federico, Lorenzo, Mounim, Ayoub, Caldarelli, Guido, Riotta, Gianni

“…We perform a multi-scale analysis of the geometric structure of the network of X (Twitter at the time of data collection) interactions surrounding the Italian…”
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