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871.
David I. Gustafson Michael Collins Jonna Fry Saori Smith Marty Matlock David Zilberman 《国际农业可持续发展杂志》2013,11(2):146-163
Supplying our world's growing nutrition needs in more sustainable ways has become an urgent global imperative, given the constraints of finite resources and the challenges of accelerating climate change. We present national-level eco-efficiency metrics in several representative production countries during the most recent decade (2000–2010) for four important crops: canola, cotton, maize, and soybeans. The metrics address greenhouse gas emissions and the utilization of land, water, and energy – all calculated per unit of production. We group countries based on their level of agricultural intensification and find that high-intensification countries are achieving the highest and yet still increasing levels of eco-efficiency, with these decadal gains: canola (26%), cotton (23%), maize (17%), and soybeans (18%). By stark contrast, low-intensification countries had no change in eco-efficiency during this same decade. Overall, our results suggest large opportunities for additional improvements in the developing world, and that cumulative resource savings through intensification have been significant. For instance, in the case of irrigated maize, if the high- and medium-intensification production countries had only achieved the same irrigation water-use efficiency as in the low-intensification countries, approximately 4 quadrillion (4×1015) more litres of irrigation water would have been consumed during the period 2000–2010. 相似文献
872.
Abstract This study analyzes Chinese consumer behavior across different retail food store formats and how household demographics affect shopping behavior. A multivariate probit model with four categories of retail food store formats (wet markets, small grocery stores, supermarkets, and hypermarkets) in Quindao, China is estimated. The results indicate that the new hypermarkets are substitutes for supermarkets, but they do not compete extensively with wet markets and small grocery stores. Furthur development of various catagories of food shopping store formats is linked to store-owner characteristics, potential interrelations among existing retail formats, as well as consumers' demographics and shipping habits. 相似文献
873.
ABSTRACT This study determines the impact service quality on customer satisfaction in the school meal context. The empirical analysis reveals three dimensions of service quality (quality of food, atmosphere, and customer service), which have a high impact on customer satisfaction. A low level of satisfaction was identified but with differences between the various schools. Understanding the antecedents of pupils' satisfaction is important to policy makers, schools, and school meals providers. Due to the increasing importance of school meal programs and their high impact on nutritional status on young people, a high service quality in school meal programs is inevitable. 相似文献
874.
The aim of this paper is to assess the effects of accession to the EC on the UK agricultural input industries using a technique commonly applied to examining the effects of accession on the manufacturing sector, the main emphasis being on trade patterns. Some attempt is made to differentiate between the effects of market-widening and of the CAP, and an assessment of the welfare implications is given. The results indicate that the effect of market-widening on the input industries was more important than the effect of the CAP and that the net loss of trade diversion was slightly outweighed by the benefits of export expansion 相似文献
875.
The aim of this article is to analyse one of the most traditional SME-support measures, the allocation of guarantees by the Spanish guarantee system. A counterfactual approach is adopted to evaluate the result of a public policy. Three groups of companies that constitute the casuistry of long-term financial supports to companies (guarantees, guarantees and preferential funding, or just preferential funding), as well as another two control groups are studied. The results suggest that public support is relevant at economic, financial and business efficiency levels. The advantages can be observed mainly in the weakest companies, where the capacity to tackle projects is facilitated, although they do not manage to reduce their financial costs until they reach relative levels similar to those reached by companies not accessing the guarantee system. 相似文献
876.
This study examines the impact that research and development (R&D) intensity has on corporate social responsibility (CSR).
We base our research on the resource-based view (RBV) theory, which contributes to our analysis of R&D intensity and CSR because
this perspective explicitly recognizes the importance of intangible resources. Both R&D and CSR activities can create assets
that provide firms with competitive advantage. Furthermore, the employment of such activities can improve the welfare of the
community and satisfy stakeholder expectations, which might vary according to their prevailing environment. As expressions
of CSR and R&D vary throughout industries, we extend our research by analysing the impact that R&D intensity has on CSR across
both manufacturing and non-manufacturing industries. Our results show that R&D intensity positively affects CSR and that this
relationship is significant in manufacturing industries, while a non-significant result was obtained in non-manufacturing
industries. 相似文献
877.
We discuss past work in the conceptualization and measurement of perceived service quality and describe the most important models proposed in the last 25 years. We infer the general equations that can be derived from each conceptualization. Finally, we summarize the shortcomings and contradictions of each model as well as conclusions reached so far by a certain consensus of researchers using different models. In order to provide a framework for understanding service quality models, we discuss the service quality paradigm from the realist and constructivist perspective along with the multidimensional nature of service quality implicit in the reflective versus formative debate. We conclude by recommending the development of more creative models of service quality, proposing three different options for quantitative analysis that minimize the various limitations that characterize the most widely used models. 相似文献
878.
Rafik I. Beekun Yvonne Stedham James W. Westerman Jeanne H. Yamamura 《Business ethics (Oxford, England)》2010,19(4):309-325
This study investigates the relationship between intention to behave ethically and gender within the context of national culture. Using Reidenbach and Robin's measures of the ethical dimensions of justice and utilitarianism in a sample of business students from three different countries, we found that gender is significantly related to the respondents' intention to behave ethically. Women relied on both justice as well as utilitarianism when making moral decisions. By contrast, men relied only on justice, and did not rely on utilitarianism when faced with the same ethical issues. Further, women's intention to behave was contextual, significantly affected by two national culture dimensions (uncertainty avoidance and individualism), whereas men's decisions were more universal, and not related to national culture dimensions. 相似文献
879.
Linwood A. Hoffman Xiaoli L. Etienne Scott H. Irwin Evelyn V. Colino Jose I. Toasa 《Agricultural Economics》2015,46(Z1):157-171
We conduct a comprehensive evaluation of the season‐average price projections for U.S. corn as published by the U.S. Department of Agriculture's World Agricultural Supply and Demand Estimates (WASDE), an important issue given reduced resources and increased program scrutiny within the Federal Government. This study is the first in the literature to evaluate the WASDE corn projections relative to futures adjusted forecasts throughout the forecasting cycle using a lengthy evaluation period (1980/81–2012/13). We find that WASDE projections provide lower RMSEs relative to futures adjusted forecasts for 9 of the 16 forecast periods, 4 of which are statistically different. Encompassing tests show that WASDE projections often provide incremental information not present in the futures adjusted forecasts. Composite forecasts based on futures adjusted forecasts and WASDE projections reduced the RMSEs over all forecast periods by an average 12–16%. Favorable average trading profits may be generated for some forecast months using WASDE projections. Overall, our results suggest that WASDE projections of the U.S. corn season‐average price provide useful information to the market and could enhance the efficiency of the agricultural sector. 相似文献
880.
Jan Börner Steven I. Higgins Jochen Kantelhardt Simon Scheiter 《Agricultural Economics》2007,37(2-3):189-200
Savannas cover the greater part of Africa and Australia and almost half of South America and contribute to the livelihoods of more than 350 million people. With the intensification of land use during the second half of the 20th century, savannas have become increasingly degraded through bush encroachment as a consequence of increased grazing pressure. Research on rangeland dynamics, however, provides contradicting answers with regard to the causes and possible remedies of bush encroachment. In this article we present results from an application of a simulation-optimization model to the case of extensive rangeland management in South Africa. Our model differs from previous approaches in that it explicitly accounts for the influence of stochastic prices and rainfall on economically optimal management decisions. By showing the implications of neglecting price variation and stochasticity in rangeland models we provide new insights with regard to the determinants of bush encroachment and rangeland managers' economic return. We demonstrate that, in the case of South Africa, optimal rangeland management is likely to lead to bush encroachment that eventually makes livestock holding unprofitable. Yet, we identify the costs of fire management to be a limiting factor for managers to counteract bush encroachment and explore the impact of policy measures to reduce fire control costs on the ecological and economic sustainability of livestock holding. 相似文献