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41.
Cities exist because of the productivity gains that arise from clustering production and workers, a process called agglomeration. How important is agglomeration for aggregate growth? This paper constructs a dynamic stochastic general equilibrium model of cities and uses it to estimate the effect of local agglomeration on aggregate growth. We combine aggregate time‐series and city‐level panel data to estimate the model's parameters via generalized method of moments. The estimates imply a statistically and economically significant impact of local agglomeration on the growth rate of per capita consumption, raising it by about 10%.  相似文献   
42.
Cocaine has been seen as a potential social and health threat to Australia, a role it already occupies in the United States. However, the results of two national population surveys, collected in 1985 and 1988, cast doubt on this interpretation. Contrary to popular perception, they show that the proportion who report having tried cocaine has declined, not increased. There has also been a decline in the proportion who say that they would try cocaine if it was offered by a friend. While some groups are at higher risk from cocaine in 1988 than in 1985, notably women aged in their late twenties and thirties, the overall pattern is of a decline in the high risk categories. Moreover, cocaine remains a drug of the better-educated young in Australia, not the under-privileged, as in the United States. Some tentative explanations for why cocaine has not become more popular, focusing on its image, Australia's social structure, and availability and cost factors associated with cocaine, are discussed.  相似文献   
43.
The dramatic increase in life expectancy and lowered fertility, especially in more advantaged countries, has resulted in people living longer and in more complex family structures. Other important changes affecting the family include greater geographical mobility, increased racial and ethnic diversity, new patterns of immigration and identity reformulation, as well as changing work and family roles. With reduced governmental resources available, it is especially important to understand the changing nature of multigenerational family structures, functioning, and roles in individual well-being in order to maximize the effectiveness of informal and formal supports available to those in need. This special issue addresses basic factors related to multigeneration support systems that will be needed to anticipate, understand, and design support programs to cope with the challenges facing individuals in all generation positions, families, and communities in the United States and around the world.  相似文献   
44.
The rate of fatal child maltreatment is increasing, and differentiating between risk factors for fatal as opposed to nonfatal maltreatment is essential to developing prevention programs. This exploratory retrospective study utilizes case record analysis to examine four categories of correlates for child maltreatment: 1) parent/caregiver factors, 2) child factors, 3) environmental/situational factors, and 4) maltreatment incident factors. Thirty-eight fatality cases are compared to a matched group of nonfatality cases to determine which factors are related to fatality in a large Southwestern metropolitan area. The results provide a profile of characteristics that may place a child at higher risk of fatal maltreatment.  相似文献   
45.
We apply criminological theories of social control to explore the relationships among adolescent pregnancy, pregnancy resolution, and juvenile delinquency. While most ever-pregnant girls have especially high rates of delinquent behavior, adolescent mothers exhibit delinquency levels no higher than those of their never-pregnant peers. Unlike adolescent females who end their pregnancies through abortion, those who keep their babies experience a dramatic reduction in both smoking and marijuana use. Our results suggest that among adolescent girls, the birth of a child has a strong trajectory-modifying effect. It serves as a mechanisms of social control and substantially reduces the likelihood of delinquent behavior.  相似文献   
46.
Social media are invaluable sources of information during organizational crises. Although recent research confirms this fundamental role in crisis communication, this article is aimed at deepening the understanding about the role of the source of information in this socially mediated era by comparing the organization and the employee as communicators. As social media lack traditional gatekeeping processes, dynamics of both source and content credibility are assessed. The findings, based on an experimental design, advocate that judgments of organizational reputation are not only dependent on the crisis-response strategy, but also depend on the source and perceptions of source and content credibility.  相似文献   
47.
Caregiving research has not accounted for increasingly diverse and complex marital and family histories of older Americans. The authors examined social relations and care‐specific positive and negative support networks among late‐life remarried wife dementia caregivers (N = 61) to determine associations among network structure, relationship quality with and support received from network members, and global assessments of family and stepfamily disagreement on caregiver well‐being. Own family and friends predominated in the social relations and positive networks. Although over half (54%) of respondents included a stepfamily member in their positive networks, stepchildren comprised the largest group (35%) in the negative networks. Larger negative networks and actively negative interactions were related to greater caregiver burden, and more global disagreement with stepfamily was associated with greater depression and burden. The findings illustrate the complex nature of support and the value of targeted examinations of caregiving support dynamics among late‐life remarried older adults and stepfamilies facing health demands.  相似文献   
48.
The increasingly global dispersion of elite athletes pursuing sporting careers is an important aspect of the global flow of sport-capital. Such sport migration lends itself to theorising that considers questions about attachment to place, particularly in relation to citizenship, identity and nationalism. Yet only recently have theoretically valuable concepts such as transnationalism, cosmopolitanism and diaspora been foregrounded in studies of sporting migrants. Based on an analysis of British and New Zealand media coverage of international yachtsman Sir Peter Blake's death, we analyse the overlapping forms of identity attributed to this apparently model transnational citizen. We conclude that this case study raises important questions about the multiplicity of identities in a globalised world and expands our understandings of diaspora beyond the classic focus on forced dispersal and non-dominant racial groups.  相似文献   
49.
Prior research suggests that the attribution of individual and group differences to genetic causes is correlated with prejudiced attitudes toward minority groups. Our study suggests that these findings may be due to the wording of the questions and to the choice of response options. Using a series of vignettes in an online survey, we find a relationship between racial attitudes and genetic attributions when respondents are asked to make causal attributions of differences between racial groups. However, when they are asked to make causal attributions for characteristics shown by individuals, no such relationship is found. The response scale used appears to make less, if any, difference in the results. These findings indicate that the way questions about genetic causation of behavior are framed makes a significant contribution to the answers obtained because it significantly changes the meaning of the questions. We argue that such framing needs to be carefully attended to, not only in posing research questions but also in discourse about genetics more generally.  相似文献   
50.
As a feminist sociologist and gerontologist, I am aware that life and work intersect, with one arena providing fodder, challenge, or impetus for reflection upon the other. I explore those links consciously in this essay, finding some of the earlier tensions that have marked my intellectual and personal life resolved while others maintain their importance. In particular, I have experienced greater acceptance of feminist work and feel a part of a community of scholars; at the same time, I continue to struggle with the deeper levels of ageism in society, both within the disciplines in which I work and within myself.  相似文献   
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