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341.
The Interaction Between the Demands for Insurance and Insurable Assets   总被引:1,自引:0,他引:1  
Holding more of the riskless asset and insuring the risky asset are two ways to reduce portfolio risk. These methods can be employed jointly. As a result, the amount of insurance selected to indemnify against possible losses from holding a risky asset depends, in general, on the quantities of the risky and riskless assets held in the portfolio, and vice versa. In decision models where expected utility is maximized, relatively little has been done to integrate these two decisions into a single model. Such a model is formulated in this paper and the interaction between the demand for insurance and the demand for an insurable risky asset is examined.  相似文献   
342.
343.
A concept of self‐interest, through which different interests relate to distinct temporal phases of selves, is examined by considering the operation of self‐interest in a context in which it is frequently held to be absent. Chinese culture, frequently described as collectivist, developed intellectual traditions in which self‐interest is assumed. Chinese sociologists affirm the centrality of self‐interest for understanding social relationships and practices. Confucian antipathy to selfishness relates to admonishment of satisfaction of the interests of present selves against those of past selves. Variable institutional selection of distinct temporal phases of self is core to understanding major differences between Confucianism and Daoism and their respective conceptions of self‐interest.  相似文献   
344.
This article challenges the notion that black militias were of little consequence in the antebellum United States. The establishment, personnel and equipment of these militia units, and their importance for local black organization, has largely escaped scholarly attention. The significance of armed companies of young black men at a time when they were not officially sanctioned by federal and state authorities has also not been explored.

The article makes three arguments. First, there was a trajectory towards militarization from vigilance committees to independent companies to enrolment in union armies. Second, links between self-defence and rights of citizenship were already being struggled over at local and state levels before the more famous national expression in black union soldiers fighting for the union. Third, national narratives concerning the origins of the American civil war, African American slavery, and British Canadian history, obscure the multiple roles played by people of African descent during this period. It is only through transnational approaches towards fugitives, military formation and antislavery mobilization that we realise the role of blacks in challenging American slavery in the Atlantic world.

The organization of the article is as follows. It begins with fugitives and the organization of vigilance committees of self-defense in North America. It continues with states rights of self-defence, the exclusion of black men from these rights, and the resulting organization of independent companies. The public parade of these black militias on West India Day, the most important commemoration by Americans of African descent between the early 1830’s and 1860’s, is the next section. It concludes with the continental destruction of American slavery and its consequences for the post-emancipation era.

This article has several objectives. It examines important black institutions hitherto unexamined. It aims to broaden the conventional temporal and spatial dimensions of the civil war era. The third task is to reveal the limitations of nationalist narratives by seeking out connections among people of African descent as well as in the ways in which individuals and organizations provide alternative means for comparison. Finally, this article is part of a broader project examining political mobilization against slavery in the Atlantic world.  相似文献   
345.
Age stands out as an important factor in multiple moves over a relatively short period of time. In addition, in the NHIS data whites show a higher tendency to be multiple movers than do blacks. It was also found that persons defined as interstate migrants moved more often than either intrastate migrants or local movers, but it is impossible to conclude anything more definitive about that relationship. In conclusion, mobility defined as a move rather than as a mover is clearly higher than estimates derived from five-year census data or the CPS, which only use the idea of a mover. On the whole, though, over three-year periods most persons do not move at all or they move and then return. Of those who do change residence, the majority move only once. By far the bulk of moves is accounted for by a relatively small segment of Americans. Of 34,000 moves reported in the NHIS, more than one-half were made by a small number of persons--4,400--who not only constituted scarcely one-fourth of all movers but were less than 1 out of every 11 Americans.  相似文献   
346.
Climate change may impact waterborne and foodborne infectious disease, but to what extent is uncertain. Estimating climate‐change‐associated relative infection risks from exposure to viruses, bacteria, or parasites in water or food is critical for guiding adaptation measures. We present a computational tool for strategic decision making that describes the behavior of pathogens using location‐specific input data under current and projected climate conditions. Pathogen‐pathway combinations are available for exposure to norovirus, Campylobacter, Cryptosporidium, and noncholera Vibrio species via drinking water, bathing water, oysters, or chicken fillets. Infection risk outcomes generated by the tool under current climate conditions correspond with those published in the literature. The tool demonstrates that increasing temperatures lead to increasing risks for infection with Campylobacter from consuming raw/undercooked chicken fillet and for Vibrio from water exposure. Increasing frequencies of drought generally lead to an elevated infection risk of exposure to persistent pathogens such as norovirus and Cryptosporidium, but decreasing risk of exposure to rapidly inactivating pathogens, like Campylobacter. The opposite is the case with increasing annual precipitation; an upsurge of heavy rainfall events leads to more peaks in infection risks in all cases. The interdisciplinary tool presented here can be used to guide climate change adaptation strategies focused on infectious diseases.  相似文献   
347.
Network theories argue that organizations can enjoy information and control benefits from the network in which they are embedded. Focusing on distribution channel networks with strong, prominent, and central ties, this article argues that distribution flexibility, composed of logistics and relationship flexibility, is a response to environmental uncertainty that mediates the effect of channel network embeddedness on relationship performance. Results show that logistics flexibility and relationship flexibility fully mediate the effect of channel network embeddedness on relationship satisfaction, but that only relationship flexibility mediates the effect of channel network embeddedness on long‐term relationship orientation. Furthermore, not only is the effect of tie strength on logistics flexibility stronger in an uncertain environment, but relationship flexibility also decreases as the congruence between uncertainty and tie strength increases, suggesting a complex higher‐order contingency model.  相似文献   
348.
This article identifies and discusses a series of interrelated pragmatic steps that can be employed by schools interested in improving their curricula by including relevant minority content. Identification of general principles, supporting rationales, and manipulable, extrinsic organizational rewards are presented as necessary building blocks for designing an Alternate Incentive Network. The function of the network is to encourage faculty involvement in developing and teaching minority content within the framework of existing or new courses.  相似文献   
349.
This study builds on an earlier one (Handy, Mook, and Quarter 2008) that examined the degree of interchangeability between volunteers and paid employees in nonprofit organizations. In the current study, we surveyed 836 nonprofits in Canada to understand what factors determine the degree of interchange between paid employees and volunteers, bearing in mind that this interchange can go in two directions: paid employees for volunteers and volunteers for paid employees. We found the degree of interchange to be widespread and in both directions. One of the most important predictors of the likelihood of interchange was the number of full‐time employees, suggesting that interchangeability occurs less frequently in organizations with a larger number of employees than in those with fewer employees. Religious congregations and organizations with workload increases were more likely to interchange tasks among volunteers and paid staff.  相似文献   
350.
ABSTRACT

We investigated the adjustment of differing sized adoptive families rearing children with developmental disabilities. Families of 5 or more children (large: n = 54) were compared with families of 4 or fewer children (conventional: n = 69) on a variety of demographic and outcome variables measuring family strengths, family disharmony, marital adjustment, and adjustment to the adopted child. Analyses of covariance on the outcome variables demonstrated that parents of large families were functioning as well or better than parents of conventional-sized families. We concluded that adoption placement practice should not exhibit bias against the placement of multiple children with developmental disabilities in the same family.  相似文献   
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