Rank aggregation using latent-scale distance-based models

Rank aggregation aims at combining rankings of a set of items assigned by a sample of rankers to generate a consensus ranking. A typical solution is to adopt a distance-based approach to minimize the sum of the distances to the observed rankings. However, this simple sum may not be appropriate when the quality of rankers varies. This happens when rankers with different backgrounds may have different cognitive levels of examining the items. In this paper, we develop a new distance-based model by allowing different weights for different rankers. Under this model, the weight associated with a ranker is used to measure his/her cognitive level of ranking of the items, and these weights are unobserved and exponentially distributed. Maximum likelihood method is used for model estimation. Extensions to the cases of incomplete rankings and mixture modeling are also discussed. Empirical applications demonstrate that the proposed model produces better rank aggregation than those generated by Borda and the unweighted distance-based models.

     

The Interpretation of Line of Regard by Prelingually Deaf Children

The ability of 5- to 12-year-old deaf children to utilise and interpret another person's visual line of regard (where the eyes are looking) was studied in four experiments using cartoon faces. The children had little difficulty in determining whether or not a face was looking directly at them. They had more difficulty, however, with more complex tasks requiring them to infer mental states of desire and intention from line of regard and to ignore line of regard when it was inappropriate to attend to this cue. Deaf children raised in a hearing environment appear to have more difficulty with these more complex tasks than hearing children. The results are discussed in terms of the special difficulties facing some deaf children in the development of skills involving utilisation of line of regard and the implications for the development of joint attentional behaviour, theory of mind and dyadic social interaction in deaf and hearing children.     

Public and private employment over the business cycle: A ratchet theory of government growth

Previous researchers have attempted to explain the growth in the size of government over time. Some have observed a “ratchet” effect and have attributed these observed jumps in the relative size of government to ideological shifts in response to severe crises. We explain these observed ratchets as the consequence of asymmetries in the response of government employment to the business cycle. A public-choice oriented model of the employment response to the cycle is developed and applied to state and local government employment data. The data confirm the presence of ratchet effects that correspond to the business cycle. Moreover, virtually all of the growth in the ratio of state and local government employment to private employment has occurred during recessions. The authors greatly appreciate the extensive comments of Randall 0. Holcombe and the late Richard McHugh on an earlier draft of this paper. Don Bellantés work on this paper was aided by a grant from the John M. Olin Institute for Employment Practice and Policy.     

Risk,Resiliency, and Urban Governance: The Case of the 2010 Winter Olympic Games

This article uses preparations surrounding the 2010 Winter Olympic Games as an opportunity to examine the idea and practice of resiliency in the field of security, public safety, and urban governance. The enthusiasm for resiliency today is said to connect with broader shifts in the logics of security in response to the proliferation of disruptive events that are difficult to anticipate and potentially catastrophic in impact. How, though, is it possible to plan for an unknown and unknowable future? This article outlines three sets of practices for building urban resiliency that, while seemingly routine and mundane, and associated primarily with the domain of emergency management, exemplify a field of governmental activity that has flourished after 9/11 but received little scholarly attention to date.     

Student and faculty perceptions about mandatory influenza vaccinations on a health sciences campus

Objective: To examine the perceptions among faculty and health professional students regarding mandatory vaccination policies on a health sciences campus. Participants: A total of 296 faculty and 244 students completed surveys during Fall 2015. Methods: The online survey administered to individuals who received the influenza vaccine during the fall 2015 influenza vaccination clinic season included five items evaluating perceptions of employer mandatory vaccination requirements. Results: Chi-square analysis indicated that although faculty and students agree mandatory vaccinations in a health care environment are appropriate, faculty are more likely than students to get vaccinated in the absence of a mandate. Additionally, a small fraction of faculty would consider employment elsewhere when facing this mandate. Conclusions: Overall, faculty and students had favorable perceptions about mandatory influenza vaccine policies. Since students were less likely to be vaccinated in the absence of a mandate, education of students should be improved to support the importance of vaccinations in a health care environment.     

Ways out of the sewage sludge dilemma: Connecting administrative and participatory decision making

This paper examines the problem of decisions about the disposal of sewage sludge, in the face of stakeholder groups with varying viewpoints, based on a current case from the state of Lower Saxony in Germany. Like other developed countries, Germany faces the dilemma that sludge arisings are increasing (e.g., because of better water treatment) while disposal options are becoming more scarce. Lower Saxony relies heavily on landfill and agricultural application, but landfill of untreated sludge will be banned after 2005. The state Environment Ministry sees agricultural application as having various advantages, but it faces scepticism from various stakeholders. The ministry has therefore taken steps to encourage a long-term dialogue process with the main stakeholders, including farming organizations, food processors, other landowners such as the churches, and environmental and consumer organizations. The process began with a discussion forum in 1995 that led to the proposal of specific discussions with stakeholders. This paper focuses in particular on the dialogue with environmental and consumer groups. It analyzes the initial positions of the various stakeholders, describes the concrete steps taken so far, describes the ongoing efforts, and critically evaluates the procedures used as well as their implications in terms of the ideas of deliberation and analysis.     

‘The Bad People Go and Speak to Her’: Young People’s Choice and Agency when Accessing Mental Health Support in School

Concerns about the mental health and well‐being of children and young people have been articulated in health and education policy fields as a call for closer working between schools and providers of mental health support services. Drawing from a Scottish study, this article explores issues of access, when mental health initiatives are sited in formal educational settings. In particular, it focuses on the implications for the agency of children and young people seeking support from those services when and how they choose. The study argues that over‐reliance on teachers as the main referral route to service influences what is deemed to be a problem, who is thought to need support and how the interventions are viewed by the children and young people. Alternative approaches are discussed, which offer opportunities for children and young people to explore the available services and make their own choices about their level of engagement.     

Economic embeddedness and materiality in a financial market setting

The notion of embeddedness (Granovetter, 1985) neglects of the material dimension of economic relations. This paper contributes to the literature of market devices (Callon et al., 2007) with an exploration of the material dimensions of economic embeddedness in the case of the everyday market activities of a group of non‐professional investors in the UK. It examines the attributes of a materially embedded market through the categories of socio‐economic embeddedness specified by Uzzi (1997) and draws attention to the superficial and rhetorical nature of the face‐to‐face social relations encountered in this market. The paper seeks to invigorate the notion of embeddedness by expanding the mechanisms through which socio‐economic relations are understood to arise. The paper offers support to the literature of market devices’ assertion that a concept of materially embedded economic relations can accommodate politics, culture, and regulation, and that it offers a nuanced perspective on agency and identity in the marketplace.