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231.
This paper assesses the hypothesis that in markets where information is lacking concerning the price and the quality of a commodity and the commodity is variable in its supply, sellers will tend to form long‐term, stable relationships with buyers. Data from a coastal Alabama community are used to test the nature of exchange relations between commercial shrimp fishers and the dealers to whom they sell. It is further hypothesized that the social aspects of these exchanges will better predict stable relationships than will economic aspects. The evidence presented supports the stated hypotheses. Finally, the relevance of this research for social theory is discussed.  相似文献   
232.
Using data from the 1998 National Congregations Study, I present empirical evidence that shows that the gender of a congregation's leadership makes a difference in the likelihood that a congregation will participate in a social service programme. The results from binary logistic regression indicate that the odds of congregations with women head clergy participating in a social service programme are four times greater than those with men head clergy. In addition, as the percentage of women on a congregation's governing board increases the probability that a congregation will participate in a service project also increases. The specific types of social service programmes a congregation pursues also differ by gender of leadership, with women‐led congregations significantly more likely to pursue service projects that could be labelled feminine while avoiding programmes that are clearly feminist. To explain this gendered behaviour I incorporate Acker's (1990 ) theory of gendered organizations.  相似文献   
233.
This article revisits Erving Goffman's important yet neglected metaphor of “cooling the mark out.” Drawing on a study of mothers whose child has Down's syndrome, I explore the value of Goffman's work for capturing how mothers interpret their child's diagnosis as a loss and rectify this breach by constructing an acceptance of their new situation. The mothers' accounts highlight how Goffman's contentions can be enriched by acknowledging the gendered, temporal, and public character of a loss. This article, thus, can be read both as a celebration and critical revision of his theoretical contribution.  相似文献   
234.
ABSTRACT

Studies of empathy and empathy-related responding show that while some people respond to observing the suffering of another with a prosocial concern and urge to help the suffering person, others have an aversive, avoidant response that is primarily self-focused and aimed toward relieving their own distress rather than helping the other person. This self-focused response, labeled personal distress, is associated with various social and psychological problems. This article discusses the concept of personal distress and describes a study of licensed clinical social workers (n = 171) that examines the relationship of personal distress and three other aspects of the empathy construct with compassion fatigue, burnout, and compassion satisfaction. Results of ordinary least squares multiple regression analyses indicate that the model of empathy components and control variables explain 20% to 23% of the variance in the dependent variables. Personal distress is the only component of the empathy construct with significant associations with the dependent variables. Higher personal distress is associated with higher compassion fatigue and burnout and lower compassion satisfaction among clinical social workers. Implications for future research and for social work education are discussed.  相似文献   
235.
236.
A slacks-based inefficiency measure for a two-stage system with bad outputs   总被引:1,自引:0,他引:1  
We model the performance of DMUs (decision-making units) using a two-stage network model. In the first stage of production DMUs use inputs to produce an intermediate output that becomes an input to a second stage where final outputs are produced. Previous black box DEA models allowed for non-radial scaling of outputs and inputs and accounted for slacks in the constraints that define the technology. We extend these models and build a performance measure that accounts for a network structure of production. We use our method to estimate the performance of Japanese banks, which use labor, physical capital, and financial equity capital in a first stage to produce an intermediate output of deposits. In the second stage, those deposits become an input in the production of loans and securities investments. The network estimates reveal greater bank inefficiency than do the estimates that treat the bank production process as a black box with all production taking place in a single stage.  相似文献   
237.
We consider a confidence parametrization of binary information sources in terms of appropriate likelihood ratios. This parametrization is used for Bayesian belief updates and for the equivalent comparison of binary experiments. In contrast to the standard parametrization of a binary information source in terms of its specificity and its sensitivity, one of the two confidence parameters is sufficient for a Bayesian belief update conditional on a signal realization. We introduce a confidence-augmented receiver operating characteristic for comparisons of binary experiments for a class of “balanced” decision problems, relative to which the confidence order offers a higher resolution than Blackwell’s informativeness order.
Where observation is concerned, Chance favors only the prepared mind. —Louis Pasteur (1822–1895).
  相似文献   
238.
Due to their common role as suppliers, small and medium-sized enterprises (SMEs) are especially challenged by today's turbulent business conditions. In order to meet this challenge, short-term WWW-based enterprise cooperations are regarded as an appropriate way to enhance the competitive strength of SMEs. Hence, the Institute of Machine Tools and Industrial Management (IWB) operates three so-called competence networks for engineering (www.engineering-net.de), rapid prototyping (www.rp-net.de) and manufacturing (www.produktionsnetz.de) services. For the purpose of an applied research project, more than 80 participating SME suppliers have been included in these specialized virtual markets, which are based on the core competencies of the cooperating SMEs. Additionally, the platform (www.virtueller-markt.de) enables customers to configure their specific supply chains via the above-mentioned competence networks. The presented paper depicts how to establish and operate these competence networks as well as how to configure supply chains via these virtual markets.  相似文献   
239.
Certain recurrence relations for the moments of different orders of the largest order statistic from a gamma distribution with shape parameter p are obtained. By using this it is shown that for obtaining the moment of any order of each order statistic of a sample of size n from the gamma distribution, one has to evaluate at most n-2 single integrals.  相似文献   
240.
Abstract

To address the rise in tobacco use among college students, several national health organizations, including the American College Health Association, recommend that colleges enact smoking bans in and around all campus buildings, including student housing, and prohibit the sale, advertisement, and promotion of tobacco products on campus. Key informants at 50 US public universities, one from each state, were interviewed during the 2001/2002 academic year to assess the prevalence of these recommended policies. More than half (54%) of the colleges banned smoking in all campus buildings and student residences, 68% had no tobacco sales on campus, and 32% of the schools' newspapers did not accept tobacco advertising. Regional differences in adoption of these campus tobacco-control policies were present. Although this national sample of public universities had implemented some of the recommended policies, they must take further actions to comply fully with campus tobacco-control guidelines.  相似文献   
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