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321.
322.
In the industry with radical technology push or rapidly changing customer preference, it is firms' common wisdom to introduce high‐end product first, and follow by low‐end product‐line extensions. A key decision in this “down‐market stretch” strategy is the introduction time. High inventory cost is pervasive in such industries, but its impact has long been ignored during the presale planning stage. This study takes a first step toward filling this gap. We propose an integrated inventory (supply) and diffusion (demand) framework and analyze how inventory cost influences the introduction timing of product‐line extensions, considering substitution effect among successive generations. We show that under low inventory cost or frequent replenishment ordering policy, the optimal introduction time indeed follows the well‐known “now or never” rule. However, sequential introduction becomes optimal as the inventory holding gets more substantial or the product life cycle gets shorter. The optimal introduction timing can increase or decrease with the inventory cost depending on the marketplace setting, requiring a careful analysis. 相似文献
323.
Tony Gardner-Medwin 《Significance》2005,2(1):9-12
Probability of guilt is not the criterion on which a verdict in a criminal trial should be based, says Tony Gardner-Medwin . The courts, quite sensibly, do not even allow access to some of the background evidence on which a proper assessment of this probability should be made. He argues that a more satisfactory criterion is the probability, or degree of belief, that the evidence could have arisen without guilt. 相似文献
324.
After the War Comes Peace? An Examination of the Impact of the Northern Ireland Conflict on Young People 总被引:1,自引:0,他引:1
Tony Gallagher 《The Journal of social issues》2004,60(3):629-642
When the conflict in Northern Ireland erupted over 30 years ago many voiced concern at the implications for children and young people. In the early years many looked to U.S. experience in order to frame questions, problems, and solutions. This article examines the strands of psychological research that developed and their link to the articles in the present collection. The article critiques the consensus among psychologists in the 1970s and 1980s that young people coped reasonably well in difficult circumstances. One theme of the current collection is to highlight the difficulties of dealing with the legacies of the past thirty years and hence the constraints facing the attempt to establish a peaceful and settled society. 相似文献
325.
Tony Killick Mick Foster 《Development policy review : the journal of the Overseas Development Institute》2007,25(2):167-192
The proposed doubling of aid to Africa by 2010 is a less simple proposition, from a recipient point of view, than is commonly supposed. This article argues that it is difficult to manage large and rapidly increasing aid inflows in ways which do not disadvantage producers of tradeable goods, and the private sector generally. This difficulty can be averted if conscious efforts are made to offset it and to stimulate positive responses from the supply side. Whether such responses prevail over the shorter‐term management difficulties depends on the efficacy of state actions — and of aid — to bolster the supply side. The outcome is likely to be mixed, depending on country circumstances. 相似文献
326.
This paper will demonstrate the contribution of Appreciative Inquiry (AI) to whole system change in the public and non-profit sectors through elucidation of the theory, method, and examples of the successful application of this approach. Developed in the mid 1980s by David Cooperrider and his colleagues at Case Western Reserve University, AI begins with the discovery of the highest achievements, core values, and aspirations embedded in all human systems. It is a methodology that begins a dialogue between individuals, expands to groups and builds to embrace and declare community wide intentions and actions. The theory of social constructionism informs this work asserting that individuals in relationship with one another can and will co-create an effective future when a positive inquiry into the heart and soul of a system, its greatest accomplishments and deepest values, generates new meaning and inspires new possibilities. Deceptively simple, the system is based on a reversal of the expectations, practices, and limitations found in traditional problem solving methodologies and thus represents a significant shift in attitude and language. 相似文献
327.
328.
Hodgins DC Toneatto T Makarchuk K Skinner W Vincent S 《Journal of gambling studies / co-sponsored by the National Council on Problem Gambling and Institute for the Study of Gambling and Commercial Gaming》2007,23(2):215-230
The goal of this study was to examine the efficacy of minimal treatment interventions for concerned significant others (CSOs)
of problem gamblers. One hundred and eighty-six participants (82% females, 56% spouses) were randomly assigned to one of three
groups: the first minimal intervention group received a self-help workbook [based on behavioral principles, modified from
the Community Reinforcement and Family Therapy (CRAFT) model] and the second minimal intervention group received the workbook
plus telephone support. The control condition received a treatment resource information package. Overall, all participants
reported significant improvement in personal and relationship functioning and gambling behavior and consequences at the 3-
and 6-month follow-up. The data demonstrated differences in favor of the interventions in three areas: days gambling, satisfaction
with the program, and number who had their needs met. There was no difference in the number who had entered treatment. It
may be that CSOs require more guidance and follow-up support to achieve these goals using the CRAFT procedures and strategies. 相似文献
329.
We investigated how often young adults worry about race relationsand whether they perceive that white/black relations have beendeteriorating. We also explored the relationships betweenrace-related worry and pessimism, and subjective well-being. This study addressed the distribution of race-related worry andpessimism, and their relationship to subjective well-being innational probability samples of high school seniors completingself-administered questionnaires in 1996 and 1997 (n = 4,514). Nearly one-third of high school seniors often worry about racerelations, and about 20% perceive that contemporary white/blackrelations have been getting at least a little worse. Worryingoften about race relations and perceiving that race relationshave been getting worse were significantly associated withdiminished levels of life satisfaction and happiness. Theresults confirm that race-related worry and pessimism werecommon, and that they impact youth's affective and cognitivestates. 相似文献
330.
In this paper, we explore young peoples’ normative representations of work. In particular, we are interested in the ways young people view work roles which could be considered ‘atypical’ such as young caring or language brokering. Interviewed were 46 young people (15–18 years) some who did, and some who did not engage in the ‘atypical’ work roles of language brokering or young caring. Findings indicated that young people have a strong representation of what a ‘normal’ childhood comprises and that friends, teachers and parents play a mediational role in cementing this contextually. However, respondents presented two alternative representations around engagement in ‘atypical’ roles, with some individuals holding both views at the same time. On the one hand, they felt that engagement in ‘atypical’ activities would be experienced as a loss of ‘normal’ childhood. On the other hand, a more positive representation of ‘atypical’ childhoods was also drawn on, in which engagement in ‘atypical’ activities was seen as a source of pride and a contributor of additional skills to a child’s development. This opinion was evidenced by both those who had, and those who had not engaged in ‘atypical’ work. 相似文献