Virality contagion theory in the age of networks pdf merge

Google ngram of the word contagion the first peak shown on this graph, in the 1650s appears to be dominated by the metaphoric use of contagion e. Much more remains to be done at both a theoretical and empirical level to identify the measures that are appropriate for predicting contagion in actual financial systems. A theoretical model 245 march 29april 1, 2007, baltimore, maryland refers in part to the ways in which individuals gather and behave in groups. Contagion in financial networks prasanna gai 1 and sujit kapadia 2 abstract this paper develops an analytical model of contagion in financial networks with arbitrary structure. Examining dynamic social networks and human behavior a. Introduction it is widely believed that social contagion and wordofmouth wom buzz about products drive product adoption and sales, and firms increasingly rely on network and viral marketing strategies hill et al 2006, manchanda et al 2008, nam et al 2010. Introduction it is widely believed that social contagion and wordofmouth wom buzz about products drive product adoption and sales, and firms increasingly rely on network and viral marketing strategies. As more people show the psychosomatic symptoms, this is taken as proof that i am bound to get it.

A growing number of presentday authors, writing from social science, humanities, network science, economic, and business perspectives, have evoked a past interest in contagion theory by pondering its relevance to the current age. Unlike memes and microbial contagions, virality does not restrict itself to biological analogies and medical metaphors. Fowler3,41 department of medicine and department of health care policy, harvard medical school, boston, ma 021152 department of sociology, faculty of arts and sciences, harvard university, cambridge, ma 028, usa3 division of. The theory is first developed by gustave le bon in his book called the crowd. We thank the authors of the texts that give us the opportunity to share their knowledge. Contagion theory is a theory of collective behavior which explains that the crowd can cause a hypnotic impact on individuals. We describe the methods we have employed and the assumptions they have entailed to examine several datasets with complementary strengths and weaknesses, including the framingham heart study, the national longitudinal study of adolescent health, and other observational and experimental datasets that we.

Risksharing and contagion in networks antonio cabrales university college london piero gottardi european university institute fernando vegaredondo universit a bocconi this version. Resuscitating tarde s diagram in the age of networks. We describe the methods we have employed and the assumptions they have entailed to examine several datasets. Just watch football matches and see how the crowd reacts almost as one. It instead points toward a theory of contagious assemblages, events, and affects. The dynamics of social contagion vladimir barash, ph. On viruses, porn and other anomalies from the dark side of digital culture hampton press, 2009, and is currently completing a book on this subject titled virality. What is the difference between the miasma theory and the. This video was made as a part of a student project for the ma new media and digital culture programme at the university of amsterdam.

We describe the methods we have employed and the assumptions they have entailed in order to examine several datasets with complementary strengths and weaknesses, including the framingham heart study, the national longitudinal study of adolescent health, and other observational and experimental datasets that we. Social contagion effects can also occur when people believe they have been infected by a disease. Thomas july 9, 2012 abstract i re ect on the statistical methods of the christakisfowler studies on networkbased contagion of traits by checking the sensitivity of these kinds of results to various alternate. It instead points toward a theory of contagious assemblages, events. Contagion theory gustave le bon, a french social psychologist born in 1841, is considered to be the founder of crowd psychology, which explains why people. Recent research tries to fill the gap between the predictions of models of contagion and the evidence from financial crises. Jackson we study cascades of failures in a network of interdependent financial organizations. Learn vocabulary, terms, and more with flashcards, games, and other study tools. We describe the methods we have employed and the assumptions they have entailed to examine several datasets with complementary strengths and weak. Published in volume 54, issue 3, pages 779831 of journal of economic literature, september 2016, abstract. See other articles in pmc that cite the published article.

Contagion theory in the age of networks university of minnesota press was published in june 2012. Cornell university 2011 social contagion is a subset of contagion which includes all social phenomena that can and do spread via social networks. A companion webpage to the paper by lilian weng, filippo menczer, and yongyeol ahn can we understand and predict virality of memes by leveraging network structure. Contagion spread in clustered and unclustered small world networks smallworld networks have been widely used as a model for social networks. We estimated social contagion in the exercise behaviours of runners worldwide in a data set that precisely records the geographic locations, social network ties and. A new theory of viral relationality beyond the biological in this thoughtprovoking work, tony d. It differs from simple contagion in that unlike a disease, it may not be possible for the innovation to spread after only one incident of contact with an infected neighbor. Complex contagion is the phenomenon in social networks in which multiple sources of exposure to an innovation are required before an individual adopts the change of behavior. Unlike memes and microbial contagions, virality does not restrict itself to biological. Contagion theory in the age of networks p2p foundation.

This book presents a contagion theory fit for the age of networks. Aug 01, 2012 in this thoughtprovoking work, tony d. For sampson, contagion is how society comes together and relates. Social contagion theory and information literacy dissemination. He is the coeditor with jussi parikka of the spam book. Considering the world population, only 7 billions, the video gangnam gains a huge success. The typical definition of a smallworld network is based on the observation that as longrange connections are added to a ring or a lattice, a regime occurs in which the typical path distance between two nodes is small while the typical clustering. Exercise contagion in a global social network nature. Download it once and read it on your kindle device, pc, phones or tablets. Use features like bookmarks, note taking and highlighting while reading virality.

Modeling contagion through social networks to explain and. Contagion in financial networks by paul glasserman and h. Study 59 terms sociology exam 4 flashcards quizlet. We describe the methods we have employed and the assumptions they have entailed in order to examine several datasets with complementary strengths and weaknesses, including the framingham heart study, the national longitudinal study of adolescent health, and other observational and experimental datasets that we and others have. The difference between these two theories has to do with their ideas about how the diseases are contracted how people come to be sick with the disease. Contagion theory in the age of networks in this thoughtprovoking work, tony d. Instances of widely studied collective behaviors throughout the last century include mob panics and violence, organization of social move. January 15, 2014 abstract we investigate the tradeo between the risksharing gains enjoyed by more intercon.

Creating social contagion through viral product design 1 1. As a continuation of the themes cursorily approached in the introduction, this first chapter sets out to explain the specificity of tardes resuscita tion and how his ontological diagram lays the groundwork for virality. We explore how the probability and potential impact of contagion is influenced by aggregate and idiosyncratic shocks, changes in network structure, and asset market. Monge and contractor, 2003 we focus on two areas of contagion theories that can be used to help explain network learning, namely. Models based on both social contagion and demographics performed best. Jan 01, 2012 in this thoughtprovoking work, tony d. Fowler3,41 department of medicine and department of health care policy, harvard medical school, boston, ma 021152 department of sociology, faculty of arts and sciences, harvard university, cambridge, ma 028, usa3 division of medical genetics. Contagion theory in the age of networks university of minnesota press, due 2012. Financial networks and contagion by matthew elliott, benjamin golub, and matthew o.

According to this theory, people tend to give up their personal responsibility and surrender to the emotions of the crowd them. The viral threat to the wealth of nations covers a lot of territory. Contagion theory thus emphasizes, and perhaps overemphasizes, the non rational aspects of collective behavior. The notion of how something becomes popular is very relevant to the concept of social contagion. Contagion refers here to a form of copycat crime, whereby violenceprone individuals and groups imitate forms of political violence attractive to them, based on examples usually popularized by mass media. Examining dynamic social networks and human behavior nicholas a. It is, of course, terribly important to analyze case histories to discover potential triggers, mechanisms of transmission, and viable ways to contain the damage of financial contagion. The video gangnam style was uploaded to youtube on july 2012, and obtains over 1. Some of these accounts point to the intensification in connectivity brought about by network.

Pdf a social network contagion theory of risk perception. Virality prediction and community structure in social networks. Financial networks and contagion harvard university. The network is particularly vulnerable to contagion when the originating node is large, highly leveraged, and, crucially, has a relatively high proportion of its obligations held by other. Creating social contagion through viral product design. The contagion on networks satellite symposium is a satellite of the international school and conference on network science in indianapolis, indiana on june 20th, 2017 and is focused on the dynamics of contagion i. According to the social psychologist gustave le bon, contagion theory states that crowds exert a hypnotic influence over their members through collective suggestibility. Contagion refers here to a form of copycat crime, whereby violenceprone individuals and groups imitate forms of political violence attractive to. Financial contagion research has tended to investigate the various factors that may exacerbate and contribute to the phenomenon such as analysis techniques, the level and nature of information available to dealers, and social communication networks e. Sampson presents a contagion theory fit for the age of networks. First, how likely is it that a given set of banks will default due to contagion from another. The following text is used only for educational use and informative purpose following the fair use principles.

More in detail, standard contagion analyses in network economies are characterized by a common, basic idea. In short, the product of reanalyzing the medical innovation data with recent developments in network theory is clearer, stronger evidence of social contagion and a redefinition of the social structural conditions responsible for contagion. As a historian and philosopher his works reflected more of political and social opinions. Contagion theory in the age of networks kindle edition by tony d. We then apply the framework to answer the following questions about the impact of network e. Contagion is not necessarily a positive or negative force of encounter. We argue that thus far the empirical work has not produced a compelling link between traditional network measures and financial stability. Export a ris file for endnote, procite, reference manager, zotero, mendeley export a text file for bibtex note. The notion of how something becomes popular is very.