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41.
资源依赖、网络中心度与多方联盟构建——基于产业电子商务平台的实证研究 总被引:2,自引:0,他引:2
以资源依赖理论和社会网络理论为依据,以产业电子商务平台为实证背景,深入分析了影响企业加入多方联盟的决定因素。实证研究表明,企业是否加入多方联盟主要受2方面因素的影响:资源依赖和网络结构中心度。企业对新联盟的资源依赖程度越高,在社会网络中的中心度越高,其加入多方联盟的概率越大。这种经济考虑和社会考虑同时存在,共同作用于企业的战略抉择。 相似文献
42.
K. Halvorsen 《International Journal of Social Welfare》1998,7(1):56-64
To be self-reliant has been a dominant norm in Western societies since early Christianity. Today the concept has the symbolic purpose of maintaining individualism and the work ethic in capitalism and reducing dependency on the state. This article contrasts the original meaning of individual self-reliance with its contemporary use in public discourses on welfare. We demonstrate the vagueness of the term and its varying interpretations. Using examples from the United States, the United Kingdom and Norway, the article attempts to demonstrate that the hegemonic use of the concepts of self-reliance and dependency today provides ideological justifications for keeping people in poverty and outside the mainstream of life. It increases social distance and promotes marginality. The article concludes by suggesting that other ways for solving problems of balancing rights and duties of citizens have to be found in order to maintain a fair distribution of dignity and social integration. 相似文献
43.
ROC analysis involving two large datasets is an important method for analyzing statistics of interest for decision making of a classifier in many disciplines. And data dependency due to multiple use of the same subjects exists ubiquitously in order to generate more samples because of limited resources. Hence, a two-layer data structure is constructed and the nonparametric two-sample two-layer bootstrap is employed to estimate standard errors of statistics of interest derived from two sets of data, such as a weighted sum of two probabilities. In this article, to reduce the bootstrap variance and ensure the accuracy of computation, Monte Carlo studies of bootstrap variability were carried out to determine the appropriate number of bootstrap replications in ROC analysis with data dependency. It is suggested that with a tolerance 0.02 of the coefficient of variation, 2,000 bootstrap replications be appropriate under such circumstances. 相似文献
44.
Social assistance receipt is typical among young adults, but the long‐term trajectories of social assistance receipt have been less studied. We use Finnish population register data to study the kinds of social assistance trajectories found among young adults. We also analyze how individual and family characteristics are associated with the likelihood of following different social assistance trajectories. Individuals are followed from the age of 19 to 25. According to the results, social assistance receipt is relatively common among young adults but spell duration is usually short. Around 35% receive social assistance at least once between the ages of 19 and 25, and 2.5% receive social assistance each year. Using latent class growth analysis, we estimated six trajectories based on the annual number of social assistance months: (1) no receipt; (2) transitory; (3) slow exit; (4) occasional; (5) increase; and (6) dependency. Almost 4% of young adults follow the “dependency” trajectory. The results from multinomial logistic regression indicate that having only a short education is a particularly strong predictor of social assistance dependency. Parental social assistance receipt and moving out of the parental home at a young age are also significant predictors of social assistance receipt. 相似文献
45.
中国人口转变、人口红利与经济增长的实证 总被引:7,自引:3,他引:4
我国人口年龄结构的变动使得劳动负担逐渐下降,这对于储蓄水平的上升和劳动力投入效率的提高具有显著的促进作用;我国劳动负担比与经济增长呈现出明显的负相关,劳动负担比每下降1个百分点,经济增长将提高1.06个百分点,在过去的30年里劳动负担降低累计带来的经济增长占总增长的27.23%。通过计量检验证明人口年龄结构变动所产生的促进经济增长的人口红利是存在的。由此我们推断,由于未来的人口年龄结构变动趋向人口老龄化,劳动负担逐步上升,这将会对未来的经济增长造成制约。利用未来10~20年时间较轻的劳动负担的机遇期,我们应当建立良好的教育、人力资本投资、社会保障等方面的制度以及制定积极的人口政策,调整当前生育政策、适时执行宏观经济政策(劳动就业政策)来应对已发生的、正在进行的人口变动,使我国的经济继续保持强有力的增长态势。 相似文献
46.
Mobile-based social messengers have overtaken social networking sites as the new frontier for organizations to engage online stakeholders. This study provides one of the earliest empirical investigations on the antecedents and relational outcomes of pubic engagement with companies via WeChat—one of the world’s most popular social messaging apps. Publics’ social messenger dependency and privacy perception of the medium are found to effectively drive public engagement, which in turn enhances organization-public relationships. Strategic guidelines based on the study findings are provided. 相似文献
47.
Leah Burch 《Disability & Society》2018,33(3):392-415
In response to a climate of austerity, disability has been keyed to a meta-narrative that has a political purpose, to justify extensive welfare cuts by positioning disability as a drain on so-called ‘hard-working taxpayers’. This paper explores how this meta-narrative is articulated on the online bulletin board, Reddit, to show how disablist hate speech may emerge as an attempt to secure one’s sense of self during austere times. A critical discourse analysis (CDA) is employed to reveal these instances and highlights the normalisation of disablist hate speech within the wider context of welfare dependency. Based on these findings, this paper makes recommendations for future research and makes a call for policy change. 相似文献
48.
Housing price, elderly dependency and fertility behaviour 总被引:1,自引:0,他引:1
Sustaining declines in fertility have increasingly become an alarming issue in most of the world economies. Many governments have been making enormous efforts to alleviate such intertwined problems as falling fertility and soaring elderly dependency. What really makes fertility rates fall? Does housing price have a role (as many argue)? Most researchers addressed this issue from a demographic perspective, but have yet to fully unravel the mystery of human fertility behaviour. The paper aims to investigate the novel linkages between birth rate, housing price and elderly dependency, with the case of Hong Kong. It employs two key methods: (i) the Autoregressive Distributed Lag (ARDL) to co-integration procedure and (ii) Granger causality, to disentangle the complicated relationships, long-run and short-run. The empirical results show that a 1 percent increase in housing prices and elderly leads to 0.52% and 1.65% decreases in birth rate respectively. Besides, both housing price and elderly dependency Granger cause birth rate in the long-run. Our findings not only shed light on fertility behaviour, but also provide implications for policy change. That is particularly relevant to those economies whose low fertility situations need to be ameliorated. 相似文献
49.
This secondary data analysis examined racial disparities in associations betwen welfare dependence/financial independence and human capital, local economy, and state TANF policies. A sample of 6,737 parents was extracted from the public-use data set titled “National Longitudinal Survey of Youth.” Results showed that restrictive TANF policies reduced African Americans’ likelihood of welfare use and increased likelihood of their financial independence. Multinomial logistic results also showed that, among Hispanics, employment growth in neighboring counties promoted welfare use; whereas among Caucasians such growth promoted financial independence. County poverty increased (a) Caucasians’ likelihood of welfare use and (b) Hispanics’ likelihood of being working poor; it decreased Caucasians’ and African Americans’ likelihood of financial independence. Across ethnic groups, education reduced likelihood of welfare use and working poor status; across minority groups, education increased likelihood of financial independence, but among Caucasians it decreased such likelihood. Across ethnic groups, occupational skills hindered dependence and improved odds of employment (regardless of welfare or poverty status). This study concluded the studied TANF policies and job markets were not color-blind. Interventions this study implies include less-restrictive TANF policies, generous support services, TANF staff cultural-competence training, and antidiscrimination rules. Research investigating particular TANF policies’ and services’ effects by ethnicity might prove useful. 相似文献
50.
Though commonly used in social science research to measure the influence of social networks, the link between discussing “important matters” within networks and the achievement of instrumental ends is frequently unspecified or untested. To address this gap, we explore the consequences of using the general “important matters” approach versus one in which the substance of discussions is directly linked to the outcomes of interest. The egocentric social networks of people experiencing an acute health crisis are examined. We identify the characteristics of and the degree of membership overlap between “important matters” and “health matters” discussants, and explore their relative power in explaining a wide range of health and health services-related outcomes. We find no evidence for the influence of “important matters” networks, while characteristics of “health matters” networks demonstrate a significant effect across all models. 相似文献