316 research outputs found
D’abord les données, ensuite la méthode?:<em>Big data</em> et déterminisme en sciences sociales
Security analyst networks, performance and career outcomes
Authors' draft. Final version to be published in The Journal of Finance. Available online at http://onlinelibrary.wiley.com/Using a sample of 42,376 board directors and 10,508 security analysts we construct a social
network, mapping the connections between analysts and directors, between directors, and
between analysts. We use social capital theory and techniques developed in social network
analysis to measure the analyst’s level of connectedness and investigate whether these
connections provide any information advantage to the analyst. We find that better-connected
(better-networked) analysts make more accurate, timely, and bold forecasts. Moreover, analysts
with better network positions are less likely to lose their job, suggesting that these analysts are
more valuable to their brokerage houses. We do not find evidence that analyst innate forecasting
ability predicts an analyst’s future network position. In contrast, past forecast optimism has a
positive association with building a better network of connections
Digital media infrastructures: pipes, platforms, and politics
Over the past decade, a growing body of scholarship in media studies and other cognate disciplines has focused our attention on the social, material, cultural, and political dimensions of the infrastructures that undergird and sustain media and communication networks and cultures across the world. This infrastructural turn assumes greater significance in relation to digital media and in particular, the influence that digital platforms have come to wield. Having “disrupted” many sectors of social, political, and economic life, many of the most widely used digital platforms now seem to operate as infrastructures themselves. This special issue explores how an infrastructural perspective reframes the study of digital platforms and allows us to pose questions of scale, labor, industry logics, policy and regulation, state power, cultural practices, and citizenship in relation to the routine, everyday uses of digital platforms. In this opening article, we offer a critical overview of media infrastructure studies and situate the study of digital infrastructures and platforms within broader scholarly and public debates on the history and political economy of media infrastructures. We also draw on the study of media industries and production cultures to make the case for an inter-medial and inter-sectoral approach to understanding the entanglements of digital platforms and infrastructures
Risk management and the cost of equity: evidence from the United Kingdom’s non-life insurance market
Confrontation of viewpoints in a concurrent engineering process
We present an empirical study aimed at analysing the use of viewpoints in an industrial Concurrent Engineering context. Our focus is on the viewpoints expressed in the argumentative process taking place in evaluation meetings. Our results show that arguments enabling a viewpoint or proposal to be defended are often characterized by the use of constraints. One result involved the way in which the proposals for solutions are assessed during these meetings. We have revealed the existence of specific assessment modes in these meetings as well as their combination. Then, we show that, even if some constraints are apparently identically used by the different specialists involved in meetings, various meanings and weightings are associated with these constraints by these different specialists
Crowdsourced Mapping in Crisis Zones: Collaboration, Organisation and Impact
Crowdsourced mapping has become an integral part of humanitarian response, with high profile deployments of platforms following the Haiti and Nepal earthquakes, and the multiple projects initiated during the Ebola outbreak in North West Africa in 2014, being prominent examples. There have also been hundreds of deployments of crowdsourced mapping projects across the globe, that did not have a high profile. This paper, through an analysis of 51 mapping deployments between 2010–2016, complimented with expert interviews, seeks to explore the organisational structures that create the conditions for effective mapping actions, and the relationship between the commissioning body, often a Non-Governmental Organisation (NGO) and the volunteers who regularly make up the team charged with producing the map. The research suggests that there are three distinct areas that need to be improved in-order to provide appropriate assistance through mapping in humanitarian crisis; regionalise; prepare; and research. The paper concludes, based on the case studies, how each of these areas can be handled more effectively, concluding that failure to implement one area sufficiently can lead to overall project failure
Market Efficiency after the Financial Crisis: It's Still a Matter of Information Costs
Robotics and automation in the city: a research agenda
Globally cities are becoming experimental sites for new forms of robotic and automation technologies applied across a wide variety of sectors in multiple areas of economic and social
life. As these innovations leave the laboratory and factory, this paper analyses how robotics and automation systems are being layered upon existing urban digital networks, extending the
capabilities and capacities of human agency and infrastructure networks, and reshaping the city and citizen’s everyday experiences. To date, most work in this field has been speculative and isolated in nature. We set out a research agenda that goes beyond analysis of discrete applications and effects, to investigate how robotics and automation connect across urban domains and the implications for: differential urban geographies, the selective enhancement of individuals and collective management of infrastructures, the socio-spatial sorting of cities and the potential for responsible urban innovation
Parenting Science Gang : radical co-creation of research projects led by parents of young children
Background Parents are increasingly searching online for information supported by research but can find it difficult to identify results relevant to their own experiences. More troublingly, a number of studies indicate that parenting information found online often can be misleading or wrong. The goal of the Parenting Science Gang (PSG) project was to use the power of the Internet to help parents ask questions they wanted to have answered by scientific research and to feel confident in assessing research evidence. Methods By using Facebook to recruit groups and facilitate interactions, PSG was able to engage fully the target public of parents of young children in the radical co-production of scientific studies, while not creating an undue burden on time or restricting participants due to disability, financial status or location. By giving parents true partnership and control of creation of projects, PSG ensured that the chosen questions were ones that were of most relevance and interest to them. Results This paper presents a summary of eight projects, with three in more detail, designed and implemented by PSG Facebook groups in collaboration with experts. Most projects had health related themes, often prompted by dissatisfaction with treatment of parents by health professionals or by feelings of being marginalised by pregnancy and motherhood, as well as by the lack of evidence for their questions and concerns. The PSG approach meant that these frustrations were channelled into actions. All eight of the PSG groups engaged in meaningful interactions with experts and co-produced studies with the groups defining the questions of interest. Conclusions This radically user-led design meant that the PSG staff and the collaborating experts had to live with a high degree of uncertainty. Nevertheless, PSG achieved its goal of academically productive, truly co-produced projects, but as important were the positive effects it had on many of the participants, both parents and experts. At the point of writing this paper, PSG projects have led to outputs including at least eight papers published, in press or in preparation, seven conference presentations, testimony to the Infant Feeding All-Party Parliamentary Group, and with more to come
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