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991.
992.
This paper discusses the criticisms that exist about corporate use of ethics advice by bioscience companies and offers suggestions on how ethics advisors can be used so as to maximize their utility and avoid the criticism.  相似文献   
993.
This paper examines the effects of sunk costs and potential competition on pricing behavior in monopoly airline markets. We find little evidence to support the proposition from contestable markets theory that the level of sunk costs influences pricing by monopolists. Rather, the results support the view, consistent with numerous game theoretic oligopoly models, that the costs and the price-cutting reputation of potential entrants influence incumbent behavior. These results suggest that contestability theory may not be robust. Even in the markets characterized by increasing returns to scale, the perfectly contestable market may not be a useful welfare standard.I am grateful to Richard Levin, Merton J. Peck, Sharon Oster, Paul MacAvoy, Dan Kaplan, Michael Levine, David Sappington, Andrea Shepard, and Diana Strassman for their advice. Participants at numerous workshops also made useful comments. Steven Davis, Tadas Osmolshis, and Maeve O'Higgins provided help with the data and technical assistance. I acknowledge financial support from Yale University and the Eno Foundation for Transportation. The usual disclaimer, of course, applies.  相似文献   
994.
Since the 1980 Education Act, school caterers have been operating within a commercial context and therefore can only provide the foods that they know that children will eat. At the same time, nutritionists have been concerned that the greater degree of choice that children now have at lunchtime is resulting in the more frequent consumption of meals of poor nutritional quality. A knowledge of children's food preferences, the factors influencing them, and their perceptions of the healthiness of foods is needed if school caterers and those involved in nutrition education are to work together to help children choose a nutritionally balanced meal. This paper reports on children's perceptions of the healthiness or otherwise of foods commonly served at school lunches and the reasons for these perceptions. Children's knowledge of the sources of nutrients, their understanding of the relationship between food and health, and how their perceptions of healthiness relate to their preferences for the foods are also explored. The nutritional implications of food choices made by primary school children on the basis of preference rather than healthiness are examined. One hundred and twenty three children aged between nine and eleven from 14 different primary schools in SouthEast England took part. Using photographs of foods commonly served at school lunches, the children were asked to rank the foods in order of preference and then according to their perceptions of the healthiness of the foods and give their reasons in each case. The rankings were analysed numerically and the Wilcoxon's pairs signed rank test was used to determine the significance of the difference. The qualitative data on the reasons given for the rankings were analysed by assigning them to categories. The children were also asked which foods they would choose for the meal that they would be most likely to eat, and which ones for the meal that they thought would be the most healthy. The nutritional value of the two sets of meals were determined and compared. A student T- test was used to determine the significance of any difference between the two sets of meals.It was found that the children had a clear perception of the healthiness or otherwise of the foods. However, understanding of the relationship between foods or nutrients and health was only occasionally evident, as was the idea of moderation or balance. Some children perceived healthiness as the absence of fat while others saw it in terms of the presence of vitamins. It was also found that there was a strongly inverse relationship between children's perceptions of the healthiness of foods and their preferences for them. It was found that while the foods chosen for the ‘healthy’ meal were chosen least frequently for the ‘preferred’ meal, there was no significant difference between the percentage of energy provided by fat in the two sets of meals. However the ‘preferred’ meals did in fact provide a significantly higher percentage of the energy as starch, as well as containing greater amounts of some micronutrients. In other respects the ‘healthy’ meals were indeed ‘healthier’, in that they provided greater amounts per megajoule of some important nutrients.It was concluded that teaching about food in primary schools needs to focus on helping children of this age make balanced food choices. It was suggested that the ‘tilted plate’ model, adapted to use foods that children frequently eat and enjoy, could be the basis of such teaching. Such a model could also be used to help caterers plan menus and as the basis of co-operation between nutrition educators and caterers.  相似文献   
995.
The cruise tourism industry in Arctic Canada has recently grown rapidly with stable numbers now emerging. While there are many socio-economic opportunities associated with growth, climate change, and environmental, technical and cultural risks also present significant management challenges. To enhance understanding of these opportunities and risks, this study adopted a policy Delphi approach to identify and evaluate potential adaptation strategies to aid decision-makers and policy-makers managing cruise tourism development and its associated impacts. Over 500 ideas were identified. These were distilled down to 65 potential adaptation options, which were evaluated for priority and feasibility by key stakeholders including local residents, tourism operators, and policy-makers. The majority of recommendations were evaluated as of high priority and most options were perceived to be somewhat affordable and implementable. Key needs included disaster management plans, updated technology and ship navigation systems, improved marine resource mapping, and the development of a code of conduct for cruise tourists to guide visitor behaviour and promote a sustainable approach. The research represents the first empirical study to identify and evaluate adaptation strategies for cruise tourism development in Arctic Canada and outlines current priorities, opportunities, and challenges associated with managing socio-economic change in Arctic Canada in sustainable ways.  相似文献   
996.
997.
We refine and extend the study of entrepreneurial dispositions by linking three classic hallmarks of the entrepreneur—achievement motivation, risk–taking propensity, and preference for innovation—to the goal orientations of United States and Russian entrepreneurs. The results suggest that entrepreneurial dispositions vary according to culture and the entrepreneur's primary goal for the venture. The results have important implications for theoretical development linking dispositions and entrepreneurial behavior in different settings and for entrepreneurial education and government policy.  相似文献   
998.
This study examines spatial variation in the price and accessibility of fast food across a major urban area. We use novel data on the price of a representative fast-food meal and the location of fast-food restaurants belonging to one of three major chains in the District of Columbia and its surrounding suburbs. These data are used to test a structural model of spatial competition. The results of this study are easily interpreted and compared with a past analysis. We find that spatial differences in costs and demand conditions drive variation in the number of firms operating in a market, which in turn affects prices.  相似文献   
999.
This paper attempts to assess the extent of decentralisation efforts and their impact on various dimensions of the development process. We find relatively little ‘real’ decentralisation (devolution): local governments have little tax autonomy and central priorities tightly constrain most funding from the centre. Indeed, increased revenue flows serve as a disincentive to modest local tax efforts, reduce the relative importance of locally controlled funds and thus retard real decentralisation. Central transfers for health, education and infrastructure have nonetheless significantly improved social and economic indicators. Greater local control over funds is found to lead to more expenditure on the social sectors (and within them on priority areas), and to increase spending on small scale locally oriented infrastructure. More decentralisation thus offers the potential for increased allocations to social and economic priorities, enhancing efficiency and equity within regions; but the promotion of national standards and equity across regions requires central government action.  相似文献   
1000.
Contracting between tax entities and tax professionals occurs millions of times every year, yet little is known about the nature of these economic interactions. This study examines the effect of commonly occurring contextual factors on tax professionals’ billing decisions for tax research. These contextual factors are unrelated to the tax research itself and the time it takes to conduct the tax research, but we find that billing decisions are strongly influenced by the three non‐time‐related contextual factors that we manipulate. Initial client volume impacts amounts billed for tax research, with lower initial client volume resulting in higher per client fees. Further, we find that initial billing decisions serve as value billing benchmarks for unanticipated subsequent clients who benefit from research conducted for initial clients. As a result, subsequent clients are billed higher fees when they follow a smaller number of initial clients. We also find that client referrals are billed higher fees than nonclient referrals because professionals attempt to avoid making initial clients feel as though they have been treated unfairly relative to subsequent clients who would otherwise be billed lower fees. The results of this study are relevant beyond the traditional confines of accounting research—they are relevant to the millions of tax entities that contract with tax professionals each year.  相似文献   
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