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571.
Thecontingent valuation (CV) methodology assigns prices to environmental amenities by asking people how much they would be willing to pay in order to preserve or acquire those amenities. If this measurement procedure is valid, then responses should be sensitive to relevant changes in the amenities being judged and insensitive to irrelevant changes. One apparent demonstration of inappropriate insensitivity is theembedding effect: the observation that people are apparently willing to pay the same amount of money for a good as for a minor subset of that good. This study examined the possibility that the source of this effect lies with each of two (potentially treatable) methodological problems: 1) subjects have difficulty using quantitative (dollar) response modes to express their values; and 2) subjects have difficulty absorbing the essential details of the CV scenarios describing those goods. The study found that 1) subjects showed considerable embedding both with a simple paired-comparison response mode and with a more demanding one requiring direct dollar estimates; 2) embedding was much reduced with the simpler response mode; 3) subjects' preferences with the two response modes were usually inconsistent; 4) when asked to describe the CV scenario that they had just heard, subjects often reported key task details inaccurately; and 5) there was less embedding when tasks were reinterpreted in terms of the questions subjects reported having answered (as opposed to what had actually been asked). These results are discussed in terms of the match between the questions that investigators would like to ask and the ones that subjects are capable of answering.  相似文献   
572.
The numbers of older people living in residential and nursing home care in the UK have risen exponentially since the early 1980s when the closure of long–stay geriatric wards and changes in social security funding of care home places led to a rapid expansion of the care home industry. While the implementation of the 1990 National Health Service (NHS) and Community Care Act shifted the responsibility for the commissioning and funding of these services to local authority social services departments, the provision of most health services (such as general practitioner care, physiotherapy and specialist nursing services) to nursing home residents remains the responsibility of community–based NHS practitioners. Recently, the attention of policy–makers in the UK has been focused on the need to improve the throughput of the acute sector. Older people who have received treatment but are not yet able to return to their own homes are to be transferred into intermediate care facilities, often by using nursing home beds, with the aim of supporting short–term rehabilitation outside of the acute sector. This paper presents evidence from a study of health service provision to older people living in nursing homes in England. It examines whether nursing homes have the capacity to fulfil the rehabilitation and intermediate care function envisaged by policy–makers. It concludes that shortfalls in the provision of NHS services to nursing homes and difficulties faced by nursing homes in paying for health services themselves may hinder the rehabilitation potential of intermediate care placements in nursing homes.  相似文献   
573.
Cambodia aims to expand social health protection to move toward Universal Health Coverage. We developed a modeling tool to facilitate the simple, interactive estimation of cost and coverage for three policy alternatives, enabling decision-makers to simultaneously adjust for scenario options currently under consideration. Assuming the adoption of all scenario options, the projected cost of expanding social health protection to all is US$42 million, to vulnerable individuals is US$32.1 million, and to uncovered 1st–3rd wealth quintile people is US$30.4 million. These policy alternatives are projected to increase population coverage to 100%, 89.1%, and 92.5% by 2025, respectively. The results have multiple policy implications. First, given the similar costs and coverage estimates for the targeted approaches, and other considerations, expansion to the 1st–3rd wealth quintiles is recommended. Second, the model quantifies the potential impacts for policy changes relating to each scenario option. The inclusion of dependents under the contributory schemes significantly shifts costs; reversing the policy of non-payment for priority public health services increases public health facility revenue; and, alignment of reimbursement rates leverages demand-side financing which can increase value for money. Finally, the cost estimates provide a basis for economic planning. Revenue raising options include increasing the contribution ceiling for the private employees’ scheme and the progressive adoption of strategic purchasing.  相似文献   
574.
This study evaluated the effect of distance on the likelihood of initiating and maintaining regular use of a fitness-program benefit in a population of managed Medicare seniors. We studied 8,162 participants and nonparticipants in a managed-care fitness-program benefit: a structured group exercise program or an unstructured health-club membership. Participants in both programs lived significantly closer to facilities than nonparticipants did (structured, p < .001; unstructured, p = .017). Participants living closer to unstructured-program sites attended more frequently than those farther away (p = .008). Distance was not correlated with frequency of use in the structured program (p = .49). Collectively, these analyses demonstrate that distance is related to uptake and, in some cases, continued use of a fitness-program benefit. Health systems providing fitness-program benefits as a way to increase physical activity levels of their plan members should consider location of program facilities in relation to members' home addresses to maximize use of the benefit.  相似文献   
575.
This article brings together two significant efforts in the child welfare field: achieving permanence for youth in out-of-home care and meeting the needs of lesbian, gay, bisexual, transgender and questioning (LGBTQ) youth. During the past several years, a national movement has taken place to assure all children and youth have a permanent family connection before leaving the child welfare system; however, LGBTQ youth are not routinely included in the permanency discussions. At the same time, efforts in addressing the needs of LGBTQ youth have increased, but permanency is rarely mentioned as a need. This article offers models of permanence and practices to facilitate permanence with LGBTQ youth and their families. It also offers a youth-driven, individualized process, using youth development principles to achieve relational, physical, and legal permanence. Reunification efforts are discussed, including services, supports, and education required for youth to return to their family of origin. For those who cannot return home, other family resources are explored. The article also discusses cultural issues as they affect permanence for LGBTQ youth, and, finally, addresses the need for ongoing support services to sustain and support permanency.  相似文献   
576.
Voice mechanisms in organizations provide an opportunity for employees to have a say about their work. As new digital mechanisms, such as social media (SM), are being increasingly adopted by organizations for knowledge sharing, employee engagement and general communication, it is important to consider the extent to which SM may facilitate employee voice. The limited attempts to examine SM and employee voice have mostly focused on identifying the contextual factors that could promote constructive voice on SM. The extant literature does not explore how SM features may (or may not) facilitate all types of voice, such as those which promote employee interests. Adopting an affordance lens, this paper answers the call of voice scholars to explore the potential of SM as a voice mechanism by discussing the perceived value of different SM features for different types of employee voice content. The paper brings together SM and voice literature and explores how different SM affordances may potentially facilitate certain voice content more so over others. In doing so, future directions for research of voice on SM are also discussed.  相似文献   
577.
This paper reports the results of simulation experiments that compared the inventory efficiency (i.e., the customer service level provided by a given level of inventory) for two different inventory policies. One of these policies uses time-phased information on future demands like that found in material requirements planning (MRP) systems, while the other (the reorder point or ROP policy) relies on forecasts implicitly based on average past demands. After establishing that the MRP policies dominate for reasonable conditions, the uncertainty of the forecasts was manipulated until the policy preference was reversed. It requires a very perverse relationship between the forecast and actual demand before ROP beats MRP on inventory efficiency.  相似文献   
578.
The dual problem of work tour scheduling and task assignment involving workers who differ in their times of availability and task qualifications is examined in this paper. The problem is presented in the context of a fast food restaurant, but applies equally well to a diverse set of service operations. Developing a week-long labor schedule is a nontrivial problem, in terms of complexity and importance, which a manager spends as much as a full workday solving. The primary scheduling objective (the manager's concern) is the minimization of overstaffing in the face of significant hourly and daily fluctuations in minimum staffing requirements. The secondary objective (the workers’ concern) is the minimization of the sum of the squared differences between the number of work hours scheduled and the number targeted for each employee. Contributing to scheduling complexity are constraints on the structure of work tours, including minimum and maximum shift lengths and a maximum number of workdays. A goal programming formulation of a representative problem is shown to be too large, for all practical purposes, to be solved optimally. Existing heuristic procedures related to this research possess inherent limitations which render them inadequate for our purposes. Subsequently, we propose and demonstrate a computerized heuristic procedure capable of producing a labor schedule requiring at most minor refinement by a manager.  相似文献   
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