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   1324篇
  免费   49篇
财政金融   36篇
工业经济   399篇
计划管理   48篇
经济学   87篇
综合类   21篇
运输经济   8篇
旅游经济   102篇
贸易经济   389篇
农业经济   229篇
经济概况   54篇
  2023年   13篇
  2022年   16篇
  2021年   47篇
  2020年   136篇
  2019年   59篇
  2018年   45篇
  2017年   99篇
  2016年   190篇
  2015年   32篇
  2014年   77篇
  2013年   122篇
  2012年   86篇
  2011年   98篇
  2010年   59篇
  2009年   53篇
  2008年   57篇
  2007年   40篇
  2006年   24篇
  2005年   19篇
  2004年   9篇
  2003年   7篇
  2002年   9篇
  2001年   6篇
  2000年   15篇
  1999年   10篇
  1998年   1篇
  1995年   1篇
  1994年   2篇
  1985年   8篇
  1984年   14篇
  1983年   11篇
  1982年   8篇
排序方式: 共有1373条查询结果,搜索用时 0 毫秒
1.
Although optimal monetary policy stabilizes food inflation theoretically, empirical studies remain limited not only in the context of volumes and the estimation approaches, but are focused on selected advanced and emerging countries to the neglect of Africa where poverty and dominance of food in the consumption basket are more pronounced. We provide empirical evidence in the context of South Africa using quantile regressions. Rising food prices are destabilized even further by restrictive monetary policy; a finding that has ramifications for inflation targeting, especially given that a quarter of the country’s population is food poor.  相似文献   
2.
The purpose of this article is to describe how households in Novgorod the Great, Russia, deal with food provision in everyday life. The study focuses on changes experienced in food provision and consumption in Russian society, in order to illustrate how households respond to the transformation towards a market economy. The study reflects women's perspective on food provision. Students from Novgorod the Great visited 105 households and asked the women in the household to answer a questionnaire. Results from the study show that in order to cope with changes in society related to economic reforms, Russian households had changed both their food consumption and food production patterns. There was no big difference between urban and rural households. Nearly all of the households were self‐sufficient in the provision of vegetables and potatoes. Many households had a ‘dacha’ (plot), where they produced most of what they needed. Among the changes experienced during recent years (i.e. during the end of the 1990s), a decade after perestroika was initiated, households mentioned the rise in food prices and the decrease of income. Households reported that they consumed less fruit and/or meat. Some households also mentioned that the quality of nourishment had decreased, thereby indicating lower general quality, lower nutrition value, or less healthy foodstuffs.  相似文献   
3.
Planning food services for a campus setting   总被引:1,自引:0,他引:1  
Providing appropriate food services in a campus setting is increasingly important due to more demanding customers and because clients have less time to go off-campus when they need to eat. Using a university campus as an example, this research looks at customer satisfaction with existing food services and explores various methods for determining where to locate new facilities. This campus currently has great needs for additional food services, and it is shown clearly where additional food services are required. Also, the methods used are compared in terms of their effectiveness in finding the solution.  相似文献   
4.
转基因标签的消费者维度思考   总被引:1,自引:2,他引:1  
本文从消费者角度分析了现行转基因标签政策实施过程中存在的成本转移、道德风险等等被忽视的问题.并以我国包装大豆色拉油市场为例,利用垂直差别化模型对加贴转基因标签前后消费者经济福利进行了比较。  相似文献   
5.
中国转基因食品安全管理的现状及对策   总被引:1,自引:0,他引:1  
转基因食品是当今世界各国基因研究的重点。我国的转基因技术发展迅速,但科学界在转基因食品对人类健康和生态风险方面的认识存在局限性,政府应制定相应的政策、措施对其进行安全管理。本文介绍了转基因食品的概念及在我国的发展情况,分析了我国转基因食品安全管理的现状,阐述了转基因食品安全管理的重要性,并针对其中存在的问题,提出相应的对策。  相似文献   
6.
Retailer initiated food quality standards are important elements to market food and agricultural products. However, farmers’ certification proceeds at an unequal speed worldwide with some countries representing a large number of certified producers and others representing very few, if any. This study aims at analysing the adoption of two private food standards, BRC Food Technical Standard and GlobalGAP, at an aggregated cross-country level using data of 2007. Negative binomial models are applied to quantify the determinants of standards’ spread at an aggregated level. The results of the econometric analysis reveal some (potential) barriers for farms and firms in developing countries to access this type of organisational innovation. Certificates of both standards seem to be issued more likely in countries with established trade relations with Germany, the Netherlands and the United Kingdom, home countries of the standards. Furthermore, larger countries and countries with better institutional quality host more certified firms. Finally, a country’s level of economic development displays a clear non-monotonic relationship to the number of certified enterprises. Although no evidence for a general exclusion of developing countries can be found, the main implication of this paper is that third-party certification for export purposes seems to reinforce already existing trade relations, potentially hampering new entrants.  相似文献   
7.
Investment costs for fish processing plants are hereby presented along with a detailed analysis of different types of processes in relation to economies of scale.The cost-capacity factor for fish industry is estimated as 0.84, except for fish meal plants where the cost-capacity factor is 0.61.It is also discussed how technology, capacity and location in developed and developing countries can affect investment costs for fish processing plants, while cost-capacity factors remain unchanged.The concept of minimum limit for industrial capacity is included. Investment costs for minimum size plants or plants below minimum size are even greater than what would correspond to the correlation line. This is due to the need to incorporate one or more oversized pieces of equipment.  相似文献   
8.
Structural changes in Norwegian and Danish food industry since the 1990s is analysed as a path dependent response to the neo-liberal turn. Norway entered the 1990s as a protected market and Denmark as case of an export oriented industry. These developmental strategies are rooted in early 20th century industrialisation and influenced by institutional transformations in the 1990s, such as EU and WTO. Mergers and acquisitions (M&A) are studied in the context of changing political environments. Explaining two different trajectories, we combine path dependency theories and a Polanyi inspired ‘varieties of capitalism’ framework with corporate strategy theories on food industry M&As. We identify two different types of path dependent development, a self-reinforcing in Denmark and a transformative ‘breaking point’ in Norway.  相似文献   
9.
The research, development practitioner, and donor community has begun to focus on food loss and waste – often referred to as post-harvest losses (PHL) – in Sub-Saharan Africa. This article reviews the current state of the literature on PHL mitigation. First, we identify explicitly the varied objectives underlying efforts to reduce PHL levels. Second, we summarize the estimated magnitudes of losses, evaluate the methodologies used to generate those estimates, and explore the dearth of thoughtful assessment around “optimal” PHL levels. Third, we synthesize and critique the impact evaluation literature around on-farm and off-farm interventions expected to deliver PHL reduction. Fourth, we suggest a suite of other approaches to advancing these same objectives, some of which may prove more cost-effective. Finally, we conclude with a summary of main points.  相似文献   
10.
Food safety systems in emerging markets are currently facing a transformation period, becoming more stringent because of an increasing demand for safer food. Consequently, policy makers need to find strategies to increase food safety while giving the industry time to improve their performance. In Thailand, policy makers have adopted the strategy of upgrading food safety standards gradually. Government and private food safety brands and labels were introduced onto the market but little is known whether Thai consumers have preferences for them or not. This study is aimed at evaluating Thai consumers’ preferences for food safety labels and brands on fresh produce, using a surveyed based on discrete-choice experiments. A sample of 350 Thai consumers was surveyed in Bangkok and Nonthaburi in 2013. Quota sampling according to the shopping outlets and convenience sampling methods were adopted. Two hundred respondents were recruited at fresh-food markets and 150 respondents were recruited at supermarkets. We found that consumers are willing-to-pay more for both government led food safety label and private brands, but that there is high heterogeneity in their preferences. The high degree of social desirability for food safety labels confirms that food safety labelling policy should be supported. However, the provision of information and credibility are vital in order to mitigate the risk of consumer deception by self-claimed labels.  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