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1.
Food safety is one of the key issues for the international meat market. As a major meat exporter, few things facing the U.S. meat industry in recent years have garnered more attention than food safety events and policies. The impacts of Food Safety Inspection Services (FSIS) recalls on United States consumer meat demand are estimated using monthly grocery-scanner data identifying effects across products, geographic regions, and recall type. Results suggest beef E. coli recalls significantly reduce the demand for recalled ground beef contemporaneously among most, but not all, regions in the United States. Evidence of heterogeneity in demand impacts across regions and products is provided for the first time. Domestic and international implications for policy makers, industry leaders, and researchers are discussed.  相似文献   

2.
徐燕  张志英 《河北工业科技》2011,28(6):372-375,402
通过运用误差传递函数来估计关键输出的变异,同时识别影响关键输出变异的关键输入变量;利用累积和控制图监控关键输出变化并对异常变化报警,以此建立关键输出的稳健性设计和监控方法,从而实现控制阶段真正保证关键输出长期满足顾客目标要求的能力.最后利用实例证明所提方法的有效性.  相似文献   

3.
We examine the impacts of a locally enforced immigration program—287(g)—on private employer reports to the Quarterly Census of Employment and Wages. Using contiguous‐county pairs to account for time‐varying local economic shocks, we identify impacts on immigrant‐intensive industries that are robust to prepolicy time trends, implementation timing, and the exclusion of pairs with large prepolicy differences. Reported employment was 4 percent higher in manufacturing, but 7–10 percent lower in administrative services. These results are consistent with adverse labor‐supply shocks, and, to a lesser extent, a decline in labor demand for locally produced goods and services.  相似文献   

4.
品牌文化认同对区域品牌产品购买意向影响研究   总被引:1,自引:0,他引:1       下载免费PDF全文
从消费者视角探讨产生区域品牌效应的品牌文化认同前因,并将文化认同细分为认知性文化认同、情感性文化认同与评价性文化认同,试图分别考察3种认同对购买意向的不同影响,以及3种认同是否存在相互影响的关系。实验选取4个区域品牌作为研究对象,进行预测试修正问卷后,通过对随机拦截的方式获得392份有效问卷,利用AMOS软件分析3种品牌文化认同产生的区域品牌效应及相互之间的影响。研究结果表明,品牌文化认同与消费者购买意向显著正相关,评价性文化认同的影响效果最强、认知性文化认同影响最弱;且认知性文化认同需要通过情感性文化认同和评价性文化认同来影响消费者购买意向,其与购买行为相关不显著。  相似文献   

5.
Research Impact Quantification   总被引:3,自引:0,他引:3  
A method was developed to quantify the impacts of research. The method is able to identify indirect impacts of research, and the pathways through which they are disseminated. A fully connected network is constructed whose nodes represent research, technology, and mission areas. The total impact of a given research node on any other node is the sum of the impacts (link value products) along every path in the network, and includes research-research, research-technology, and technology-research impacts. A pilot study was performed using a taxonomy of research and development nodes, with the raw input data (the link values) obtained from a survey of experts. An algorithm processed the data to provide total impact results, which are presented here.  相似文献   

6.
In the early 1980s, disease susceptibility in short-season lentil landraces began to limit productivity in areas where relay cropping took place in Bangladesh. Since then, several improved high-yielding lentil varieties, which are resistant to rust and blight and suitable in the relay cropping system, have been released jointly by national and international research centers. This study used three methods, namely a panel of experts, a survey of 1000 households where the respondents named the variety they used, and DNA fingerprinting of seed samples collected from all lentil plots cultivated by survey households to estimate adoption. Double hurdle and instrumental variables regression methods were applied to the household survey and DNA fingerprinting data to identify determinants of adoption and measure their impacts. Of particular interest was whether estimates of adoption, determinants of adoption and impacts varied by method of variety identification. Results showed that the expert panel overestimated the adoption of more recent varieties while about 89% of the farmer-reported varieties were accurate, as verified by DNA fingerprinting. DNA fingerprinting appears to have little advantage for estimating the level of adoption in this case, where few varieties of lentils are found, local variety names do not exist, and most seed is obtained through a formal system. However, even under these conditions, determinants of adoption vary by identification method, and use of farmer-reported information on the variety can lead to erroneous conclusions about determinants of adoption. Because recent breeding efforts have focused on taste and cooking considerations, yield impacts were not significantly different from zero.  相似文献   

7.
Cash transfers are a widely used policy instrument in Sub-Saharan Africa to shield vulnerable populations from malnutrition. In this paper, we focus on the role of local food markets after weather shocks as a facilitating factor for program impacts on nutrition. As food prices tend to be negatively correlated with households’ own production in isolated markets, we expect the purchasing power of cash transfers to decrease after harvest failures in such markets. To test this, we analyze the impact of Kenya’s Hunger Safety Net Programme during the 2011 drought in the Horn of Africa, considering the impacts on food consumption and the availability of macro- and micro-nutrients at the household level. We particularly focus on heterogeneous program impacts depending on the exposure to the drought, measured with satellite imagery, and impacts depending on the isolation of local food markets, approximated by price differences between community and wholesale maize prices. Our findings indicate that, despite some encouraging effects on proxy indicators, the program does not have significant impacts on nutrient availability on average. However, we do observe significant positive impacts for drought affected households in less isolated communities.  相似文献   

8.
This study investigates broadband policies applied in Finland and Sweden with special reference to the geographical coverage of the required network infrastructure. These two Nordic countries are seen as forerunners in the development of the information society, and they also share several other similarities bearing relevance to the take-up of broadband. However, they have applied different broadband strategies: Sweden, one of the first-movers in this field, already launched its ambitious and interventionist national ICT infrastructure program in 2000, whereas the Finnish broadband strategy, published in 2003, largely relies on market forces. The present article analyses these broadband strategies, and attempts to identify their actual differences. It appears that the Finnish strategy caused temporary higher broadband prices and a somewhat slower rollout. However, the current results of the two countries’ strategies in terms of coverage and usage levels, as well as end-user prices, do not indicate any significant long-term policy-induced impacts.  相似文献   

9.
Biofortification, the focus of the HarvestPlus program of the Consultative Group on International Agriculture Research (CGIAR), represents a potentially powerful tool to increase dietary intake of essential nutrients in staple foods. This paper evaluates the compatibility of biofortification with the preferred option of dietary diversification and its potential impacts on the agricultural biodiversity essential for long term sustainability. In poor countries, biofortification requires increasing public investment in agricultural research and infrastructure for success. Rather than cereal commodities, biofortification for developing countries should focus on vegetatively propagated species or in improving quality of coarse cereals, as well as fodders. Community participatory approaches that identify local food resources with nutritional, agronomic and economic advantages to small-scale farmers could complement and set targets for biofortification as one of many approaches to alleviate nutritional deficiencies. Furthermore using agricultural biodiversity to reinforce dietary diversity can help situate biofortification within the larger context of sustainable food-based approaches. In this light, this paper evaluates specific biofortification interventions from environmental, sociocultural, political, economic, ethical, and biomedical perspectives.  相似文献   

10.
Introducing product-service-software systems (PSSS) to the market requires forming an enabling ecosystem, which can be largely based on incumbent business ecosystems. Creating value through PSSS with autonomous capabilities will likely encounter numerous challenges related to the lock-ins in current ecosystem structure. We use institutional theory as a lens and autonomous ships as the case to shed some light on types and impacts of these barriers. We identify a set of institutional barriers pertinent to regulatory, normative and cultural-cognitive pillars of institutions. We further analyze how institutional barriers affect creating, delivering, and capturing value of autonomous ships, ultimately shaping the ecosystem formation around PSSS. The main contribution of the paper is the depiction of early ecosystem dynamics as the mutual adaptation of the PSSS value proposition and the structure of the incumbent ecosystem.  相似文献   

11.
The paper analyzes empirical evidence from 368 environmentally responsive small and medium-sized enterprises (SMEs) operating in four industries. The results demonstrate that firms' environmental performance cannot be viewed as a one-dimensional concept and that determinants of firms' environmental performance depend on the dimension retained. The impacts of firms' environmental performance on their innovativeness and competitiveness vary according to the industry within which they operate. However, impacts on product and process innovations as well as on managerial innovations are positive and significant in all four industries.  相似文献   

12.
Brand engagement on social media increasingly draws B2B brands' attention as it may produce positive WOM and bring branding and financial benefits. However, B2B marketers face challenges in creating compelling brand posts on social media. Beyond ‘knowing what to post’, what is even more challenging for B2B marketers is a lack of knowledge of ‘knowing how to communicate’, i.e., knowing how to design the non-informational cues in brand posts to stimulate brand engagement and generate social media WOM. This research makes initial attempts to address this gap by investigating the impacts of post language on B2B brand engagement on social media. Building on the model of B2B effective communication and theories in linguistics, we identify six linguistic features (i.e., post length, language complexity, visual complexity, emotional cues, interpersonal cues, and multimodal cues in rich media) that influence brand engagement, captured using Twitter likes and retweets. Through analyzing 229,272 tweets collected from 156 B2B brands in 10 industries, we found that, in general, linguistic features that facilitate the central or peripheral route processing will have positive effects, while those that hinder the processing will have negative impacts on brand engagement. This research contributes to our knowledge of B2B social media communication by revealing the power of brand language in driving brand engagement and introducing linguistics as a valuable conceptual lens for maximizing the benefits of B2B marketing content on social media. This research also highlights the interpretative nature of social media communication – B2B brands must go beyond the content purpose and strategy decisions to consider the specific language use and communication style of the message.  相似文献   

13.

Background

To compare the likely costs and benefits of a range of potential policy interventions in Fiji and Tonga targeted at diet-related noncommunicable diseases (NCDs), in order to support more evidence-based decision-making.

Method

A relatively simple and quick macro-simulation methodology was developed. Logic models were developed by local stakeholders and used to identify costs and dietary impacts of policy changes. Costs were confined to government costs, and excluded cost offsets. The best available evidence was combined with local data to model impacts on deaths from noncommunicable diseases over the lifetime of the target population. Given that the modelling necessarily entailed assumptions to compensate for gaps in data and evidence, use was made of probabilistic uncertainty analysis.

Results

Costs of implementing policy changes were generally low, with the exception of some requiring additional long-term staffing or construction activities. The most effective policy options in Fiji and Tonga targeted access to local produce and high-fat meats respectively, and were estimated to avert approximately 3% of diet-related NCD deaths in each population. Many policies had substantially lower benefits. Cost-effectiveness was higher for the low-cost policies. Similar policies produced markedly different results in the two countries.

Conclusion

Despite the crudeness of the method, the consistent modelling approach used across all the options, allowed reasonable comparisons to be made between the potential policy costs and impacts. This type of modelling can be used to support more evidence-based and informed decision-making about policy interventions and facilitate greater use of policy to achieve a reduction in NCDs.  相似文献   

14.
New open innovation initiatives, such as accelerators, living labs, social innovation labs and open labs, involve for‐profit and not‐for‐profit actors working closely together to co‐create both business value and societal impacts. However, there is a lack of theoretical underpinning to understand how and why co‐creation by actors generate different types of social value in the concurrent pursuit of business and social value. Adopting an inductive case study approach, we find that different types of entrepreneurs who co‐exploit co‐identify opportunities for co‐creation, generate potentially competing social and business values. We develop four propositions relating to how and why profit orientation and key resource contributions of entrepreneurs co‐identifying an opportunity to co‐create decide the nature of social value generated. We discuss avenues for future research and practical implications, underlying the importance of developing entrepreneurialism as ways to generate different social impacts through open innovation approaches, such as co‐creation.  相似文献   

15.
The possible implications of global trends such as climate change and resource scarcity on food security are high on the political agendas. While the food sufficiency aspect of food security takes centre-stage, the future of food safety and nutritional quality of diets often seems to be taken for granted. This paper builds on the results of a foresight study on EU food safety and nutrition towards 2050 to discuss potential future points of tension for food policy. Increasing food production while using fewer resources and reducing food waste while ensuring food safety are just two examples. Innovation at different levels in the food system will be needed to address future challenges. Fast technology uptake and the launch of new food-related products can put pressure on the ability to deliver timely risk assessments, the scope of which might also need to cover other legitimate factors. Future food policies need to be more sensitive to impacts on food safety and nutrition and health aspects. A holistic food systems approach must be taken to identify and discuss in advance possible tensions and trade-offs and to address them upfront in a systematic and transparent manner.  相似文献   

16.
As suppliers increasingly depend on their indirect sales channel, enablement of channel partners has become a strategic asset. We focus on the central role of deliberate learning within strategic enablement strategy. Specifically, we conceptualize deliberate sales learning as a three-dimensional construct (knowledge articulation, knowledge codification, knowledge certification) and identify the mechanisms through which it impacts on channel partner sales performance. Based on a survey of channel partners (N = 383) of an FT100 company, we establish exploitative and explorative learning orientations as antecedents of deliberate sales learning, where this relationship is moderated by channel partners' preference for online learning formats. The relatively weaker relationship between explorative learning orientation and deliberate sales learning is positively enhanced for those channel partners with a preference for interactive online modules. Further, we demonstrate that deliberate sales learning and deliberate sales practice act in serial mediation to positively impact sales performance. In addition to future research opportunities, we identify three core implications for the practice of strategic sales enablement; enhancing return on investment, managing learner motivation and activating learning engagement of channel partners.  相似文献   

17.
This paper analyses Hungary's price and trade policies for meat and livestock. Three policy constraints are discussed — the need to control consumer discontent, to provide employment, and to maintain close ties with the Council for Mutual Economic Assistance (CMEA) and the Soviet Union. Of particular interest are Hungary's exports of meat rather than grain, and the impact of policies on large and small producers and on Hungary's dependence on the Soviet market.  相似文献   

18.
环境成本内部化与产业国际竞争力   总被引:19,自引:1,他引:19  
环境成本内部化是公认的纠正市场失灵的手段。作为达到可持续发展的必经之路,已经被政策制定者和环境学家广泛接受。虽然环境成本对竞争力影响的性质和程度主要是实证问题,但目前对环境成本内部化与产业国际竞争力的关系所做的经验分析存在许多困难和缺陷。所以,本文提出了一个新的分析框架,试图从成本和差异化两个方面对决定环境与竞争力关系的各个因素进行分析,并在对一些污染密集型产业进行实证分析的基础上,对发达国家和发展中国家各相关产业的国际竞争力受环境成本内部化影响的不同程度进行了比较,从而了解南北国家的出口产业在环境成本内部化影响下的脆弱程度。  相似文献   

19.
The impact of providing food assistance in kind (via food, stamps, or restricted debit cards) vs. cash has long been a subject of debate. Prior efforts to causally identify the effects of the two types of transfers have been hindered by concerns over non-random selection into assistance programs, misreporting of program benefits, and identification of inframarginal households who, theoretically, should treat cash and in-kind transfers identically. This paper reports the results of an economic experiment designed to cleanly test some conceptual issues associated with in-kind vs. cash giving in a lunchroom meal setting. Given current debates about the healthiness of food assistance recipients’ diets, we also consider the impacts of placing restrictions on in-kind transfers that either prohibit soda purchases with the transfer or require the transfer be spent on fruits and vegetables. Overall, we find that, as theory predicts, in-kind transfers have the same effect on food expenditures as an unrestricted cash transfer for inframarginal consumers, and for extramarginal consumers, food expenditures are higher for in-kind than cash transfers. Participants also respond to the fruit and vegetable restriction as theory would predict. However, in contrast to the theoretical prediction, the soda restriction reduces soda expenditures for more than half the inframarginal consumers.  相似文献   

20.
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