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41.
Efficient implementation of product recovery requires appropriate network structures. In this paper, we study the network design problem of a firm that manufactures new products and remanufactures returned products in its facilities. We examine the capacity decisions and expected performance of two alternative manufacturing network configurations when demand and return flows are both uncertain. 相似文献
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Stefan Kühl 《Organisationsberatung, Supervision, Coaching》2008,15(2):137-155
The nearly closed cycle of personnel development. The growing popularity of personnel development like training, coaching or supervision is usually justified by the new challenges impending on organizations. The author presents an alternative explanation: Basing on considerations about the operative consistency of organizations, he argues, that the popularity of personnel development is to explain by the boom of personnel diagnostics during the last two decades. Only by potential analysis, assessment center, 360-degree feedback, several trainings and especially person-centered counseling like coaching and supervision could increase their attractiveness. In organizations, cycles of personnel development emerge, and by this a sort of all-round cares of the organisation members. 相似文献
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Over the past 20 years, the internet has provided an expedient mode of communication and access to a wealth of information. The internet is a valuable tool; however, it can also be detrimental to the wellbeing of children due to numerous online hazards. There is the potential for children to be abused via cyberspace through online sexual solicitation and access to pornography. Indeed, the internet is replete with inappropriate material, including pornography, chatrooms with adult themes and access to instant messaging wherein others could misrepresent themselves. Because children are actively utilizing the internet where unknown others can have access to them or where they can be exposed to inappropriate sexual materials, they require safeguarding and education in safe internet use. The purpose of this article is to provide a discussion of how to safeguard children from and educate them about online sexual solicitation and pornography. We contend that society needs an overall conceptual shift in its attitude towards young people's internet use. Copyright © 2007 John Wiley & Sons, Ltd. 相似文献
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Projections of total population have been evaluated extensively, but few studies have investigated the performance of projections by age. Of those that did, most focused on projections for countries or other large areas. In this article, we evaluate projections by age for Florida and its counties, as produced and published between 1996 and 2010 by the Bureau of Economic and Business Research at the University of Florida. We first compare the precision and bias of projections of total population with the precision and bias of projections by age, at both the state and county levels. This is followed by a more detailed examination of county-level projection errors for individual age groups, first in the aggregate and then disaggregated by sex and population size. The second part of the analysis focuses on a number of adjustments that were implemented in projections published in 2006 and 2009. Intended to improve accuracy, these adjustments involved updates to the base population, fertility rates, and survival rates. We compare the accuracy of projections incorporating these adjustments with the accuracy of projections excluding them. We believe this study offers a unique opportunity to examine a variety of characteristics regarding the forecast accuracy of small-area population projections by age. 相似文献
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This paper experimentally investigates a preference condition for loss aversion in the framework of cumulative prospect theory (CPT). We propose the concepts of absolute and relative loss premiums in order to measure the extent of loss aversion and to derive notions of increasing, constant, and decreasing loss aversion. While in only one of the 28 choice situations analyzed loss neutrality and loss seeking can be rejected, about 51% of all choices are loss averse and, due to the large extent of loss aversion revealed by these choices, the average loss premium is positive for most choice situations. Female subjects exhibit both a more frequent occurrence and a larger extent of loss aversion. 相似文献
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Stefan Gre 《International social security review》2006,59(3):27-47
The objectives guiding healthcare reforms in Germany, Switzerland and the Netherlands were to increase efficiency and consumer satisfaction in the provision of healthcare services. This paper reviews the incentives for and instruments of competition for consumers, sickness funds and healthcare providers in these three countries which are necessary to fulfil these objectives. Incentives for risk selection of sickness funds are high in Germany and Switzerland while they are low in the Netherlands. Incentives for consumer choice are also highest in Germany and Switzerland. In all three countries sickness funds have only a few instruments of competition. The effects of competition have been disappointing so far. The objectives of competitive healthcare reforms can be achieved only if incentives for and instruments of competition consistently support competitive behaviour on the part of market actors. 相似文献