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991.
A sharp increase in obesity during the last 15 years in the United States became one of the nation’s main public health problems. The theory of rational addiction seems to explain human behavior in food consumption leading to obesity reasonably well. The interesting thing about our results is that the tax policy, normally used to correct various distortions, is to serve in this case as the preventive policy: additional taxes on future prices of the addictive (sweet) foods contribute to lower sugar consumption and BMI at present time. On the other hand, increasing education level is usually considered a preventive type of policy. In this case, it leads to lowering the levels of the BMI in already overweight and obese population. 相似文献
992.
Prof. Dr. Ingrid Kollak Alice-Salomon Fachhochschule Berlin Yoga-Lehrerin BDY/EYU Email: kollak@asfh-berlin.de 《Heilberufe》2008,60(8):69
Zusammenfassung YOGA bei Gesundheitsproblemen — Die bewusste Atmung ist ein st?ndiger Begleiter aller Yogahaltungen. Die Atmung erleichtert
das Hineingehen in eine Haltung. Komplement?r dazu schafft diese Haltung eine Erweiterung des Atemraums. Das wird am Beispiel
der Fischposition deutlich. 相似文献
993.
Surprise gifts offer more business opportunities than gifts suggested by recipients, because a larger part of the selection and purchase processes can be molded, and such gifts are especially valued by recipients. Yet the extant gift-giving literature explicitly takes into account neither the giver's intention to surprise nor the consequences for the gift selection and purchase processes. The present study investigates surprise gifts from the giver's point of view and disentangles the selection and purchase processes of surprise gifts and gifts that are not meant as surprises. The hypotheses emerge as a consequence of the enhanced pleasure and experiential motivation underlying surprise gifts, as well as their greater inherent perceived risk. According to panel data, design and money-back guarantees are more important for the purchase of surprise gifts (compared with non-surprise gifts), whereas good deals appear less important, and brand name does not seem to matter any more than it does for gifts not intended as a surprise. Also, surprise gifts more often are bought on the spot than non-surprise gifts, without extended information search (similar to impulse purchases), by women alone, and for someone within the household. Finally, the giver usually has a poorer idea of what he or she wants to buy before entering the shop and visits fewer stores to purchase surprise gifts. However, the last three results apply only to appliances which often serve as gifts. These insights lead to significant managerial implications for retailers and manufacturers. 相似文献
994.
Kelly Garbach Jeffrey C. Milder Fabrice A.J. DeClerck Maywa Montenegro de Wit Laura Driscoll Barbara Gemmill-Herren 《国际农业可持续发展杂志》2017,15(1):11-28
Agroecological intensification (AEI) integrates ecological principles and biodiversity management into farming systems with the aims of increasing farm productivity, reducing dependency on external inputs, and sustaining or enhancing ecosystem services. This review develops an analytic framework to characterize the fulfilment of these objectives by documenting the co-occurrence of positive, neutral, and negative outcomes for crop yield and nine regulating ecosystem services. We provide an illustrative examination of the framework, evaluating evidence for yield and ecosystem service outcomes across five AEI systems: conservation agriculture, holistic grazing management, organic agriculture, precision agriculture, and system of rice intensification (SRI). We reviewed 104 studies containing 245 individual comparisons between AEI and contrasting farming systems. In three of the five AEI systems, conservation agriculture, precision agriculture, and SRI, more than half of reviewed comparisons reported ‘win-win’ outcomes, enhancement of both yield and ecosystem services, or ‘win-neutral’ outcomes relative to contrasting farming systems. The review presents substantial evidence that the five AEI systems can contribute to multi-functional agriculture by increasing ecosystem service provision, or reducing negative externalities associated with agriculture, while maintaining or increasing yields. A framework such as the one presented here can help guide decision-makers considering how best to implement multi-functional agriculture so that both crop yield and ecosystem service delivery can be maintained or increased. 相似文献
995.
This paper develops a novel forecasting method that minimizes the effects of weak predictors and estimation errors on the accuracy of equity premium forecasts. The proposed method is based on an averaging scheme applied to quantiles conditional on predictors selected by LASSO. The resulting forecasts outperform the historical average, and other existing models, by statistically and economically meaningful margins. Copyright © 2016 John Wiley & Sons, Ltd. 相似文献
996.
In 2010, the ‘Brand Africa’ initiative was launched with the mission to transform perceptions of Africa from a continent of calamities into one of promising economic prospects and entrepreneurial populations. This transformation, ‘Brand Africa’ claims, is one where Africans take their representation from the hands of foreigners and make, through a new image, their own (hi)story. In this respect Brand Africa can be interpreted as a form of subaltern geopolitics seeking to subvert dominant geopolitical knowledge and to fight established structures of domination. However, the article argues its subversive elements are limited, especially when compared to the historical discourses of decolonial pan-Africanism upon which it draws for legitimacy. Indeed, while appropriating this legacy Brand Africa offers up a very different geopolitical vision of possible/desirable African futures. It is argued that this may be accounted for by understanding the extent to which the Brand Africa initiative appears embedded within a South African national context and its own geopolitical ambitions evident within its own nation branding project. What this highlights in turn is that the emancipatory potential and assumed synergies between national and supranational branding central to the Brand Africa initiative are not as unproblematic or uncontested as claimed. 相似文献
997.
This paper reviews the rapidly growing empirical literature on international tax avoidance by multinational corporations. It surveys evidence on the main channels of corporate tax avoidance including transfer mispricing, international debt shifting, treaty shopping, tax deferral, and corporate inversions. Moreover, it performs a meta-analysis of the extensive literature that estimates the overall size of profit shifting. We find that the literature suggests that, on average, a 1 percentage-point lower corporate tax rate will expand before-tax income by 1%—an effect that is larger than reported as the consensus estimate in previous surveys and tends to be increasing over time. The literature on tax avoidance still has several unresolved puzzles and blind spots that require further research. 相似文献
998.
Journal of Consumer Policy - Energy labels are one of the most widely used policies in the European Union for increasing the energy efficiency of household appliances. However, their effectiveness... 相似文献
999.
Ruben Costa Celson Lima 《International Journal of Intelligent Systems in Accounting, Finance & Management》2015,22(1):29-64
This paper introduces a novel conceptual framework to support the creation of knowledge representations based on enriched semantic vectors, using the classical vector space model approach extended with ontological support. This work is focused on collaborative engineering projects where knowledge plays a key role in the process. Collaboration is the arena, engineering projects are the target and knowledge is the currency used to provide harmony into the arena since it can potentially support innovation and, hence, a successful collaboration. The test bed for the assessment of the approach comes from the Building and Construction sector, which is challenged with significant problems for exchanging, sharing and integrating information among actors. Semantic gaps or lack of meaning definition at the conceptual and technical levels, for example, are problems fundamentally originated through the employment of representations to map the ‘world’ into models in an endeavour to anticipate other actors’ views, vocabulary and even motivations. One of the primary research challenges addressed in this work relates to the process of formalization and representation of document contents, where most existing approaches are limited and only take into account the explicit, word-based information in the document. The research described in this paper explores how traditional knowledge representations can be enriched through incorporation of implicit information derived from the complex relationships (semantic associations) modelled by domain ontologies with the addition of information presented in documents, by providing a baseline for facilitating knowledge interpretation and sharing between humans and machines. Preliminary results were collected using a clustering algorithm for document classification, which indicates that the proposed approach does improve the precision and recall of classifications. Future work and open issues are also discussed. Copyright © 2015 John Wiley & Sons, Ltd. 相似文献
1000.
Boards and Sustainability: the Contingent Influence of Director Interlocks on Corporate Environmental Performance 下载免费PDF全文
Natalia Ortiz‐de‐Mandojana Juan Alberto Aragon‐Correa 《Business Strategy and the Environment》2015,24(6):499-517
This paper highlights the importance of a firm's board with respect to sustainability issues by analysing the relationship between director interlocks, i.e. directors who simultaneously belong to the boards of directors of several companies, and a firm's environmental performance. The previous literature has focused on the influence of firm‐level resources on corporate environmental performance. This study utilizes insights from a resource‐based view and research on social capital to demonstrate that the environmental performance of a firm is also influenced by the difficult‐to‐imitate capabilities that are embedded in the network relationships of its directors. Our results support a contingency perspective of the social capital theory that finds that director interlocks are positively connected with the environmental performance of a firm in two specific situations: (1) when the firm is linked to a larger parent company and (2) in cases of low and high levels of interlock diversity. Copyright © 2013 John Wiley & Sons, Ltd and ERP Environment. 相似文献