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排序方式: 共有184条查询结果,搜索用时 78 毫秒
31.
Kanokporn RattanasuteerakulGopal B. Thapa 《Land use policy》2012,29(2):456-463
In line with the national sustainable agriculture development policy of the Government of Thailand, organic vegetable farming (OVF) promotion projects have been implemented in several provinces of the country. Based on data collected through a questionnaire survey of 172 sample vegetable farmers in Mahasarakham Province of northeast Thailand, this study firstly assessed the status of OVF and then, analyzed the financial performance of three main vegetables cultivated, namely: morning glory, green onion and Chinese kale. Finally, sensitivity analyses of the financial performances for all three vegetables were conducted under four assumed scenarios with respect to price of synthetic fertilizers and pesticides, and yield and price of organic vegetables. The findings of the analysis on the status of OVF revealed that organic vegetable farms accounted for very small percentage of the total area used for all vegetables in the study area. Results of the financial analysis also showed that OVF was much less financially attractive than conventional vegetable farming due to low yield which usually does not come with premium price of the vegetables. Still farmers are growing organic vegetables on small scale primarily for household consumption. The findings of the sensitivity analyses indicated that the removal of direct or indirect subsidies for synthetic fertilizers and pesticides, and appreciation in the yield and price of organic vegetables can enhance the financial performance of OVF. In view of the possible rejection of radical policies that encourage OVF by discouraging conventional vegetable farming, this study suggests appropriate policy measures that could directly provide incentives for organic vegetable production and consumption. 相似文献
32.
Several studies have shown that consumers with a high organic consumption often have dietary habits that include more fruit and vegetables but less red meat. This paper takes a novel approach by investigating whether changes in consumption of organics and improvements in dietary habits also are related. The results show that many consumers seem to improve their diet while increasing the organic consumption. Further, the study suggests that some households already have a relatively healthy diet in terms of fruit, vegetables, and meat consumption, when they start buying organic food. When organic consumption reaches a certain level, further increases in organic consumption are more likely to take place at the same time as dietary habits are improved. References to health and climate considerations seem to be the most important motivations for reducing meat consumption, while higher availability of organics is the most important reason for increasing organic consumption. 相似文献
33.
Understanding the drivers of organic foods purchasing of millennials: Evidence from Brazil and Spain
This paper examines the antecedents of millennials' organic food purchasing. A conceptual framework, based on product characteristics, and consumers' concerns and consciousness, is proposed. Data collection was conducted through a survey in two culturally and socioeconomically distinct countries (Brazil vs. Spain) to increase the robustness and generalizability of the results. The results show that product characteristics and consumer concerns improve millennials’ health consciousness and increase their social consciousness, which, in turn, increase their willingness to pay a price premium and their purchase frequency of organic foods. The findings show that the proposed model has high validity, with only one significant difference between the two countries. Theoretical contributions and managerial implications are discussed. 相似文献
34.
Consumer behavior is key in shifts towards organic products. A diversity of factors influences consumer preferences, driving planned, impulsive, and unplanned purchasing decisions. We study choices among organic and conventional wine using an extensive survey among Australian consumers (N = 1003). We integrate five behavioral theories in the survey design, and use supervised and unsupervised machine learning algorithms for analysis. We quantify a gap between intention and behavior, and emphasize the importance of cognitive factors. Findings go beyond correlation to the causation of behavior when combining predictive prowess with explanatory power. Results reveal that affective factors and normative cues may prompt unplanned and spontaneous purchasing behavior, causing consumers to act against their beliefs. 相似文献
35.
The theories in Aristotle's Poetics are the earliest and the basis of western principal aesthetic notions. This article generally analyzed a very important aesthetic thinking of Aristotle in this work --the notion of organic holism. The significance of this notion to literary theories is also included. 相似文献
36.
共轭聚合物[9,9-二辛基芴-9,9-双(N,N-二甲基胺丙基)芴](PFN)及其电解质衍生物具有与高功函数金属形成有效电子注入的能力,可以用作电子注入层与高功函数金属(如Al、Au等)组成复合阴极,应用在聚合物发光二极管(PLED)中。这类含新型复合阴极的PLED器件具有与目前广泛应用的低功函数金属(如Ba、Ca等)器件相同甚至更高的发光效率。该类电子注入型共轭聚合物及其前驱体只溶解于水、醇等极性溶剂中,而不溶于发光聚合物所易溶的非极性溶剂如甲苯、二甲苯或导电胶所含溶剂,这种特殊的性质可以保证电子注入层与发光层、电子注入层与导电胶层之间在印刷时不会发生互溶而被侵蚀的现象,使得利用高功函数金属的导电胶通过涂覆方式制备PLED的阴极并实现全印刷制造发光器件成为可能。目前,此类高分子材料合成及器件化已成为有机电子学研究的热点之一。本研究论述了国内外在以实现全印刷PLED为目标,以PFN及其衍生物作为电子注入材料方面的研究进展。 相似文献
37.
ABSTRACT This article explores the marketing of organic products. It identifies the issues that pervade the national, organisational, and individual differences within the global organic industry. These are discussed using the marketing mix framework of product, price, promotion, and place of distribution. It concludes that a large percentage of customers, who are spread throughout the community, purchase organic products, most of whom only purchase it occasionally. The most important attributes of organic products are health, quality, and environment. Promotion of these benefits has the potential to demonstrate that, even at the higher price, they still offer value for money. 相似文献
38.
39.
Weng Marc Lim Juliette Li Shuang Yong Kherina Suryadi 《Journal of Global Marketing》2013,26(5):298-307
ABSTRACTThe demand for organic products has rapidly expanded worldwide in recent years. However, the organic market remains a niche market in most countries, and research in this area remains limited. Further investigation is necessary to better understand consumer perceptions about organic food and the circumstances in which they are willing to purchase organic food. Accordingly, the authors seek to understand the perceived value that consumers associate with organic food and the factors that impact their willingness to purchase organic food. This study is exploratory in nature and uses a qualitative approach through the use of in-depth interviews. Findings from the study suggest that consumers who perceive a positive value with regard to organic food are more willing to purchase organic food, in which health was the primary perceived benefit. For consumers who perceive a negative value with regard to organic food, they are less willing to purchase organic food. Many did not see any difference between organic food and nonorganic food. Instead, they viewed the prices of organic food as being expensive and argued that more efforts are needed on their part to source for organic food. Implications and recommendations from research findings are also presented. 相似文献
40.
The future of farming: The value of ecosystem services in conventional and organic arable land. An experimental approach 总被引:5,自引:0,他引:5
In the current work, a novel, experimental ‘bottom-up’ approach is used to quantify the economic value of ecosystem services (ES) associated with highly modified arable landscapes in Canterbury, New Zealand. First, the role of land management practices in the maintenance and enhancement of ES in agricultural land was investigated by quantifying the economic value of ES at the field level under organic and conventional arable systems. This quantification was based on an experimental approach in contrast with earlier value transfer methods. Total economic value of ES in organic fields ranged from US $1610 to US $19,420 ha− 1 yr− 1 and that of conventional fields from US $1270 to US $14,570 ha− 1 yr− 1. The non-market value of ES in organic fields ranged from US $460 to US $5240 ha− 1 yr− 1. The range of non-market values of ES in conventional fields was US $50 — 1240 ha− 1 yr− 1. There were significant differences between organic and conventional fields for the economic values of some ES. Next, this economic information was used to extrapolate and to calculate the total and non-market value of ES in Canterbury arable land. The total annual economic and non-market values of ES for the conventional arable area in Canterbury (125,000 ha) were US $332 million and US $71 million, respectively. If half the arable area under conventional farming shifted to organic practices, the total economic value of ES would be US $192 million and US $166 million annually for organic and conventional arable area, respectively. In this case, the non-market value of ES for the organic area was US $65 million and that of conventional area was US $35 million annually. This study demonstrated that arable farming provides a range of ES which can be measured using field experiments based on ecological principles by incorporating a ‘bottom-up’ approach. The work also showed that conventional New Zealand arable farming practices can severely reduce the financial contribution of some of these services in agriculture whereas organic agricultural practices enhance their economic value. 相似文献