Contagion in networks.
Complex networks represent the natural backbone to study epidemic processes in populations of interacting individuals. Such a modeling framework, however, is naturally limited to pairwise interactions, making it less suitable to properly describe social contagion, where individuals acquire new norms or ideas after simultaneous exposure to multiple sources of infections.
Remember when we thought being trapped indoors and worldwide contagions only happened in movies? Well, the times have certainly changed. Many earlier films reflect similarities to the COVID-19 world around us, and almost instinctively we ca...Dec 28, 2015 · Contagion in Financial Networks by Paul Glasserman and H. Peyton Young. Published in volume 54, issue 3, pages 779-831 of Journal of Economic Literature, September 2016, Abstract: The recent financial crisis has prompted much new research on the interconnectedness of the modern financial system and... Download Citation | Contagion in Financial Networks | The recent financial crisis has prompted much new research on the interconnectedness of the modern financial system and the extent to which it ...Xiong et al. (2018) proposed an emotional independent cascade model in which individual emotion can affect the subsequent emotion of his/her friends aiming to show the detailed process and characteristics of emotional contagion within social media (Xiong et al., 2018). Most of the personality prediction employs Linguistic Inquiry and Word …
The interpretation of this network effect as contagion of mood has come under scrutiny due to the study’s correlational nature, including concerns over misspecification of contextual variables or failure to account for shared experiences (4, 5), raising important questions regarding contagion processes in networks. An …
Contagion is a process whereby the collapse of a node in a network leads to the collapse of neighboring nodes and thereby sets off a chain reaction in the network. ... Visual analytics methods can help analysts examine contagion effects. For this purpose, network visualizations need to be complemented with specific features to illustrate the ...
Risk contagion to China’s banking network from 2013 to 2016. 4.4.1. Contagion caused by credit shocks. In this Section, we examine the trend in the contagion effect due to a credit shock over the 2013–2016 period. Under the complete network structure, the net core tier 1 capital was used to counter the shock.Oil climbs on Mideast contagion fears from Israel-Gaza conflict. A person puts gas in a vehicle at a gas station in Manhattan, New York City, U.S., August 11, …This contribution focuses on the methodology applied in papers that investigate the dynamics of contagion in financial networks using numerical simulations. In these papers, a propagation of losses and defaults in a financial system is modeled as a direct balance-sheet contagion (a.k.a. counterparty contagion), that is the direct …The structure of this paper is organized as follows. The second part constructs a dynamic risk contagion model of inter-firm credit guarantee network. The third part simulates and analyzes the dynamic risk contagion mechanism of inter-firm credit guarantee network when firm assets are impacted. Finally, the conclusions of this paper are obtained.Correlation-based networks models that combine financial networks with contagion models emerge from the dependence structure among market prices, and links can be related to Granger causality (Billio et al. 2012; Diebold and Yılmaz 2014) or to pairwise correlations between returns (Tumminello et al. 2010). Some other works have focused on ...
The European Union’s chief Ursula von der Leyen has told an American audience that the conflict contagion could spread to the Indo-Pacific.. Speaking to the …
Here we extend simplicial contagion to time-varying networks, where pairwise and higher-order simplices can be created or destroyed over time. By following a microscopic Markov chain approach, we ...
Paul Glasserman & H. Peyton Young, 2016. " Contagion in Financial Networks ," Journal of Economic Literature, American Economic Association, vol. 54 (3), pages 779-831, September. The recent financial crisis has prompted much new research on the interconnectedness of the modern financial system and the extent to which it contributes to systemic ...To assess the relevance of asymptotic formulae for studying contagion in networks with such sizes, we generate a scale-free network of 10,000 nodes with Pareto distributed exposures using the random graph model introduced by …Whilst sparser networks limit the ability of shocks to spread, reducing contagion, they also reduce the risk sharing capacity of the market and so increase the risk of individual banks failing. The model presented in the next section will examine this interaction and the behavior of the financial system as a whole.Researchers have already observed social contagion effects in both in-person and online interactions. However, such studies have primarily focused on users’ beliefs, mental states, and interests. In this article, we expand the state of the art by exploring the impact of social contagion on social alignment, i.e., whether the decision …exercises targeting linkages in the financial network other than interbank lending. This is a brief summary of the main results of the paper: Traditional indicators underestimate contagion risk. DR captures features of a bank systemic importance, such as …Downloadable (with restrictions)! By considering overlapping portfolios among financial institutions, we construct a financial contagion model for inter-bank networks with two channels of contagion: counter-party risk and common asset holdings risk. Based on the model, we verify the contribution of overlapping portfolios to systemic risk contagion and further analyse how …Oct 9, 2013 · Section 3.1 illustrates how the resilience measure allows us to quantify and predict the outcome of contagion on one sample network generated from a random network model that mimics the properties of a real interbank exposure network analyzed in Cont et al. . We observe that networks with the same average connectivity may amplify initial shocks ...
1. Introduction. The interconnectedness of the modern financial system is widely viewed as having been a key contributing factor to the recent financial crisis. …Biological disasters are outbreaks of diseases or contagions of plant and animal life on an epidemic or pandemic level or infestations of animal or insect life on an epidemic or pandemic level. Examples of biological disasters include chole...Contagion in Financial Networks* Paul Glasserman and H. Peyton Young . October 20, 2015 . Among the many factors contributing to the financial crisis the increasing of 2007-2009, interconnectedness of the global financial system perhaps the least well understood. The isContagion in Financial Networks* Paul Glasserman and H. Peyton Young . October 20, 2015 . Among the many factors contributing to the financial crisis the increasing of 2007-2009, interconnectedness of the global financial …There are two types of contagion that have been studied on networks formed by financial links. The first type of contagion is caused by insolvencies and flows from …The estimate of moral contagion in the available population of studies is positive and significant (IRR = 1.12, 95% CI = [1.06, 1.19]), such that each message is 12% more likely to be shared for ...
In this context, two questions arise: how resilient financial networks are to contagion, and how financial institutions form connections when exposed to the risk of contagion.
Dec 28, 2015 · Contagion in Financial Networks by Paul Glasserman and H. Peyton Young. Published in volume 54, issue 3, pages 779-831 of Journal of Economic Literature, September 2016, Abstract: The recent financial crisis has prompted much new research on the interconnectedness of the modern financial system and... Using a case study of a newly emerging CSA, the role of social contagion in network evolution will be assessed. The merit of this research stems from its central task of …If one runs a large computer network, a network monitoring tool is crucial as it can protect your business. A network monitoring tool monitors all of the computers on a network constantly checking for errors. It will check all of the compon...We develop a theoretical framework for the study of epidemiclike social contagion in large scale social systems. We consider the most general setting in which different communication platforms or categories form multiplex networks. Specifically, we propose a contact-based information spreading model, and show that the critical point of the multiplex system associated with the active phase is ...As discussed in Section 2, contagion occurs through social interactions, and thus the process of contagion would use a social network as a substrate. In parallel, there could be an exploration process with reinforcement—akin to those introduced in Section 3—that takes place over a different network of relations/similarities between items.In recent years, simulation of contagion in financial markets is one of the main concerns of the economic and finance researchers and policy makers in order to analyze the effects of different shocks on the contagion. In this paper, we introduce a simulation model to analyze the contagion in financial markets based on the cross-shareholding network of firms. …Jul 30, 2014 · Our article contributes to this literature by developing a general framework for the study of optimal network design and defence in a setting with strategic conflict and contagion dynamics. The analysis of this framework yields results on optimality of CP-star and multi-hub networks that are new.
Contagion is a process whereby the collapse of a node in a network leads to the collapse of neighboring nodes and thereby sets off a chain reaction in the network. It thus creates a special type of time-dependent network. Such processes are studied.
We explore how the probability and potential impact of contagion is influenced by aggregate and idiosyncratic shocks, changes in network structure and asset market liquidity. Our findings suggest that financial systems exhibit a robust-yet-fragile tendency: while the probability of contagion may be low, the effects can be extremely widespread ...
Conclusion. This work expands the literature on financial contagion in interbank credit markets, addressing the research question of how the presence of a network community structure affects the diffusion of liquidity contagion in a banking system. A community structure is a structural feature of complex networks, in which subsets of nodes are ...Happiness and other emotions spread between people in direct contact, but it is unclear whether massive online social networks also contribute to this spread. Here, we elaborate a novel method for measuring the contagion of emotional expression. With data from millions of Facebook users, we show that rainfall directly influences the emotional content of their status messages, and it also ...Risk contagion to China’s banking network from 2013 to 2016. 4.4.1. Contagion caused by credit shocks. In this Section, we examine the trend in the contagion effect due to a credit shock over the 2013–2016 period. Under the complete network structure, the net core tier 1 capital was used to counter the shock.This paper develops an analytical model of contagion in financial networks with arbitrary structure. We explore how the probability and potential impact of contagion is influenced by aggregate and idiosyncratic shocks, changes in network structure and …Contagion is not necessarily a positive or negative force of encounter; it is how society comes together and relates. The book argues that a biological knowledge of contagion has been universally distributed by way of the rhetoric of fear in the antivirus industry and other popular discourses surrounding network culture.(a) Forman-Ricci network entropy of random growing network of size \(N=10{,}000\) performed at \(10^3\) realizations. The blue curve is the expected value of the Forman-Ricci network entropy ...This paper aims to construct a feasible two-layer network model for the emotional contagion of passenger groups in the case of large-scale flight delays. This improved emotional contagion model can study the emotional contagion mechanism and process of delayed passengers between online and offline social contact networks. …Using these algorithms, we study the spread of contagion in scale-free networks with 1,000 players using millions of Monte Carlo simulations. Our analysis …
The shock contagion of international trade and investment networks based on complex network theory focuses on the characteristics of systemic risk in transnational economic networks.Social networks have changed the way how people communicate with each other dramatically. The study on information dissemination in social networks has attracted considerable attention. Many evidences show that emotionsof netizens are likely to spread with information and the emotional contagion also affect information dissemination in social networks. In this paper, we propose a cognitive ...We explore how the probability and potential impact of contagion is influenced by aggregate and idiosyncratic shocks, changes in network structure and asset market liquidity. Our findings suggest that financial systems exhibit a robust-yet-fragile tendency: while the probability of contagion may be low, the effects can be extremely widespread ...Instagram:https://instagram. spectrum ref code rlp 999celtics vs heat game 3 box scoremultidisciplinary research buildingsouth jam volleyball Sentiment contagion such as the spread of panic in emergencies is a common phenomenon in human society. Considering the difference between sentiment contagion and epidemic contagion, we define the transition probabilities of the binary emotional state (optimism, pessimism) and establish a sentiment contagion model. Transition equations are ...However, appropriate models for studies of contagion in community networks remain elusive. Numerous studies indicate the effects of geodetic properties such as the degrees of separation, distributions, mixing and cover times, diameters of networks or degrees of separation, and centrality and clustering of social interactions, and these have ... bobby pettiford statsjellyfin transcoding gpu ST. LOUIS (AP) — The estimated future cost to clean up 19 sites contaminated by nuclear waste from the Cold War era has risen by nearly $1 billion in …Abstract. We study the formation of networks in environments where agents derive benefits from their neighbours (immediate links) but suffer losses through contagion when any agent on a path that ... tax rate overland park ks Risk contagion to China’s banking network from 2013 to 2016. 4.4.1. Contagion caused by credit shocks. In this Section, we examine the trend in the contagion effect due to a credit shock over the 2013–2016 period. Under the complete network structure, the net core tier 1 capital was used to counter the shock.We estimated these contagion effects by combining daily global weather data, which creates exogenous variation in running among friends, with data on the network ties and daily exercise patterns ...Thus, with bankruptcy costs, the probability of contagion is at least ( 1 - ( 57 / 150)) q = 0.62 q, which is now greater than the probability of direct defaults through independent shocks. A similar comparison holds with truncated exponentially distributed shocks. This example illustrates how bankruptcy costs increase the probability of contagion.