首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   539篇
  免费   9篇
财政金融   88篇
工业经济   26篇
计划管理   74篇
经济学   126篇
综合类   2篇
运输经济   23篇
旅游经济   62篇
贸易经济   82篇
农业经济   51篇
经济概况   14篇
  2023年   18篇
  2022年   17篇
  2021年   26篇
  2020年   52篇
  2019年   23篇
  2018年   18篇
  2017年   39篇
  2016年   26篇
  2015年   20篇
  2014年   40篇
  2013年   35篇
  2012年   24篇
  2011年   46篇
  2010年   19篇
  2009年   40篇
  2008年   29篇
  2007年   30篇
  2006年   8篇
  2005年   8篇
  2004年   10篇
  2003年   4篇
  2002年   4篇
  2001年   1篇
  2000年   1篇
  1999年   4篇
  1998年   1篇
  1997年   2篇
  1995年   1篇
  1993年   1篇
  1984年   1篇
排序方式: 共有548条查询结果,搜索用时 62 毫秒
21.
The sustainability of smallholder agriculture in the drylands of West Africa is a topic of long-lasting concern. This paper is focused on the scientific assessment of nutrient (mis)management affecting the long-term productivity of cropland. “Nutrient mining” is seen as a major mechanism for land degradation in the region. Two models will be the focus: that tied to the rangeland-to-cropland metric and the nutrient balance model. These tools of assessment follow a long history of environmental assessment and modeling that purposefully abstracts from the heterogeneity of the same farming practices that modeling efforts seek to assess. Abstraction is always part of modeling but the form of abstraction described here ignores any detailed understanding of farming practices and in so doing, demands very little information about farming practices. In this way, models serve as both the symptom and cause of continued ignorance of farming practices by most agronomists and soil scientists working in the region. The variables used in these models will be described and how these same variables are strongly influenced by the variation of farmers’ practices will be discussed. In addition, it will be shown that needless model abstraction results in research outcomes that provide very little insights to guide land policy formulation and agricultural extension. In short, these models point to the ultimate resource limits of the regional agricultural system but provide few insights of what could be changed to reduce rates of land degradation. The paper concludes by presenting alternative approaches that through their engagement with the diverse positionalities of farmers, provides insights useful for the development of effective land policies.  相似文献   
22.
This research investigates how consumers assess hotels’ corporate social responsibility (CSR) practices when writing online reviews. The study explores the CSR discourse in online reviews over a 10-year period, highlighting how CSR’s social and environmental dimensions relate to the main hospitality topics (experience, amenities, location, transactions, value). Based on a longitudinal automated text analysis covering 480,000 reviews across six European cities, the findings reveal that hotel customers have gradually begun paying more attention to CSR factors, particularly to social and environmental ones. However, the aggregate results suggest that the overall CSR consumer discourse is still very limited, although it does have important implications in terms of consumer emotions and hospitality dimensions.  相似文献   
23.
Recent studies on structural and relational embeddedness suggest that favorable position and connections in supply networks benefit a firm. While fruitful, this focus misses the motivations that prompt firms to take economic action in the first place. Understanding cultural embeddedness provides insight into why individuals and firms behave as they do and how their behavior can influence network structure. Contrary to the belief that firms act solely for profit and growth, we note that cultural contents such as values, social issues and political ideologies explain firms’ motives and guide their economic activities. We explore the role of cultural embeddedness through a grounded study of Country Natural Beef, a sustainability-oriented agricultural cooperative in the western United States. This supply network demonstrates strongly competing cultural claims among its members as well as a unique institutionalized culture. Cultural interactions at the node and network levels explain the functioning of and changes to the network. Through interviews, analysis of archival information and direct observation of pivotal events over a period of 5 years, we unpack cultural embeddedness and take an incremental step toward a theory of cultural embeddedness in cooperative supply networks.  相似文献   
24.
Achieving sustainable development is a significant hurdle that societies around the world face in the present era. The on-going global discourse on sustainability revolves around the dual objective of developing sustainability consciousness while fostering social and economic progress. However, despite its relevance to humankind, little is known about the mechanisms and boundary conditions that explain what influences an individual's sustainability consciousness. To fill this void, we borrow from the theory of mindful-consumption and explain why and how mindfulness impacts sustainability consciousness. Besides, given that material wealth is experiencing an unprecedented boom, we examine the moderating role of materialism on the aforesaid relationship. Demographic factors such as age (Gen Y vs Gen Z) and gender (male vs female) were also employed as moderators in the study. A sample of 726 was collected through a survey instrument and analysed using SMART PLS to test the hypothesized relationships. Findings reveal that there is a significant positive relationship between mindfulness and sustainability consciousness with materialism acting as a significant moderator. The model relationships did not vary across the two generational cohorts (Gen Y and Gen Z) significantly. The results further revealed that the impact of materialism was stronger for females than males, depicting gender to be a significant moderator on the proposed relationships. The current work is among the very few studies that empirically validate the influences of mindfulness on the entire gamut of sustainability (including environmental, economic, and social aspects); and has major implications for academicians, practitioners, and policy makers passionate about sustainability.  相似文献   
25.
Bioeconomy comprises a novel approach towards economic development in the European Union (EU). Its development should be confined by the planetary boundaries (biocapacity). We integrate the land footprint approach related to production and land biocapacity to assess the trends in capacity and productivity of bioeconomy in the EU countries throughout 1997–2013. Results show that the level of production-based land footprint and land biocapacity vary across the EU countries. However, Belgium is the sole case where production-based land footprint exceeds land biocapacity. The highest possibilities for development of the bioeconomy sector are observed for Slovenia, Croatia, Romania and Slovakia. Meanwhile, Estonia, Denmark and the United Kingdom have almost achieved the level of land biocapacity. Considering the catch up growth rate, almost all of the EU countries (with exception of Greece, France, Italy and Romania) show increasing footprint-to-biocapacity ratios with the highest values for Estonia and Latvia. The significant absolute decoupling between production-based land footprint and agricultural value added is observed in Denmark. Meanwhile, Italy, Lithuania and Spain show relative decoupling. Thus, these countries should pay particular attention to productivity improvements in forestry and agriculture. This study contributes to setting the targets for bioeconomy policy that can support the sustainable and efficient use of biological resources.  相似文献   
26.
For global sustainability it is imperative to find a balance across the three main components of sustainable development which are the economic, social and environmental aspects. However, it is not a simple task to make these contexts compatible, usually because of economic pressures which transform them into opposed objectives. This framework occurs across several dimensions within society and the economy, where the agricultural sector is not an exception. The objective of this study is to analyse the efficiency, total factor productivity and returns to scale in an economic, social and environmental perspective in farms of the European Union (EU) regions through Data Envelopment Analysis (DEA) approaches. The research concerning the returns to scale will be complemented by the Keynesian models. Data obtained from the European Union Farm Accountancy Data Network (FADN) was considered. The results show that in maintaining or improving the levels of production in farms, it is often possible to greatly reduce, in some cases, the consumption of fertilizers and crop protection products. On the other hand, from a social perspective, some European Union regions are more generous in the salaries paid to farming workers and absorb more labour, which in a European context of unemployment, may be an interesting way to realistically look at and be engaged in the agricultural planning in a sustainable way, founding a balanced trade-off among the economic, social and environmental dimensions.  相似文献   
27.
Building on the literature in brand loyalty and sustainable consumption of apparel, this study compares the loyalty formation mechanism between sustainable fashion and fast fashion brands. A series of hypotheses proposing the difference in the loyalty formation between the two types of apparel brands were developed. A structural equation modeling tested the research model with a sample of 556 U.S. respondents. Although somewhat inconsistent, the results suggest that consumers form brand loyalty toward sustainable versus fast fashion in a different manner. Implications for marketers as well as directions for future research are discussed.  相似文献   
28.
Considering economic, environmental and social impacts, this paper presents a new sustainable closed-loop location-routing-inventory model under mixed uncertainty. The environmental impacts of CO2 emissions, fuel consumption, wasted energy and the social impacts of created job opportunities and economic development are considered in this paper. The uncertain nature of the network is handled using a stochastic-possibilistic programming approach. Furthermore, for large-sized problems, a hybrid meta-heuristic algorithm and lower bounds are developed and discussed. Finally, a real case study is provided to demonstrate the applicability of the model in real-world applications, and several in-depth analyses are conducted to develop managerial implications.  相似文献   
29.
In seeking to achieve poverty alleviation and environmental conservation, public policy has often centred on guaranteeing land titles to local peoples. However, such approaches have brought unintended outcomes, replacing small-scale economies and natural areas by intensive exploitation of resources with no clear improvement in local people’s wellbeing. To understand this, we go beyond a general political ecology framing to consider relations between sustainability and land tenure, focusing on the intersection of economics, ecology and anthropology to understand how land tenure, property and use play out on the ground. We draw together different concepts including bundle of rights, de facto and de jure resource use, property regimes, density-dependence and non-equilibrium theory. The significance of this three-discipline view is illustrated through a case study of the Pantanal wetland, Brazil, where conservationists, the government and the local population contest ownership of the Paraguay River floodplain. Government sought to address conflicts around tenure and access through a narrow view of property, which failed to encompass the overlapping layers of land tenure, property and use on the ground and only served to create further legal battles. This article concludes that a more complex view combining the three perspectives is needed in the case of the Pantanal, and in other cases of contested property rights, in order to resolve conflicting claims and foster sustainability. We dissect both the power plays involved between different groups competing for control of a valuable resource, and the legal frameworks which can and should provide checks and balances in the system. The more nuanced grasp that emerges of local systems of tenure and access, of how these diverge from western property concepts, and of their environmental implications favours a better understanding of local realities, allowing for better management policy and consequently contributing more effectively towards poverty alleviation and environmental protection.  相似文献   
30.
In efforts to promote transitions to sustainability in city-regions, government and nongovernment actors throughout the world are devising comprehensive sustainability strategies and implementing a variety of environmental policies. Social actors in many city-regions view forest stewardship as an important element of this integrated approach. Generally, urban sustainability goals are guided by the principles of ecological integrity, environmental quality, social equity, social inclusion, and social justice. In other words, sustainable urban development should foster a good quality of life for all by providing equitable access to adequate economic opportunity, housing, education, public services, ecosystem services, and environmental amenities. Governance structures should pursue these goals democratically with legitimacy, transparency, and accountability. Effective sustainability planning and management depend on the reliability of land-use monitoring and modeling approaches. They also require field-based, qualitative empirical research to understand the complex social dynamics that are invisible from space. The aim of this paper is to encourage international, cross-disciplinary dialogue on the conceptual, theoretical, methodological, and practical groundwork necessary to effectively carry out metropolitan land-change science, particularly for rapidly expanding small- and medium-sized cities in developing countries. I begin by presenting the paper's central conceptual and theoretical framework. Next, I explore existing analytical and methodological approaches to the study of land-use dynamics in metropolitan regions. After a brief discussion of specific opportunities and challenges for collaborative, interdisciplinary research in support of metropolitan land-change science, I conclude by proposing a four-part agenda for coordinated investigation of tropical and subtropical forest recovery in city-regions worldwide.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号