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   749篇
  免费   36篇
财政金融   177篇
工业经济   53篇
计划管理   165篇
经济学   112篇
综合类   8篇
运输经济   27篇
旅游经济   28篇
贸易经济   128篇
农业经济   30篇
经济概况   57篇
  2023年   4篇
  2022年   4篇
  2021年   14篇
  2020年   18篇
  2019年   17篇
  2018年   35篇
  2017年   36篇
  2016年   34篇
  2015年   24篇
  2014年   36篇
  2013年   108篇
  2012年   23篇
  2011年   21篇
  2010年   43篇
  2009年   29篇
  2008年   23篇
  2007年   23篇
  2006年   27篇
  2005年   17篇
  2004年   24篇
  2003年   18篇
  2002年   17篇
  2001年   13篇
  2000年   16篇
  1999年   20篇
  1998年   7篇
  1997年   10篇
  1996年   10篇
  1995年   8篇
  1994年   9篇
  1993年   5篇
  1992年   5篇
  1991年   8篇
  1990年   5篇
  1989年   4篇
  1987年   5篇
  1986年   3篇
  1985年   8篇
  1984年   11篇
  1983年   4篇
  1982年   4篇
  1981年   3篇
  1980年   7篇
  1979年   5篇
  1978年   2篇
  1977年   2篇
  1975年   3篇
  1970年   3篇
  1963年   1篇
  1962年   1篇
排序方式: 共有785条查询结果,搜索用时 15 毫秒
21.
22.
Estimating the costs and benefits of soil conservation in Europe   总被引:1,自引:0,他引:1  
Economics is about problems of choice. In erosion control, both public authorities and private land users are faced with such problems. What is the impact of erosion, both on-site and off-site, and to what extent can this impact be quantified? If we conceptualize this impact in terms of sustainability, how can we compare one type of effect against another? The former question can be answered only by natural scientists, the latter by economists and other social scientists. Weighing different aspects of sustainability requires value judgments, and economists are sometimes accused of having a jaundiced view of reality, wrongly supposing that decisions are based on rationality and denying the importance of emotion.However, let us assume that there is some mileage to be gained out of attempting to estimate the cost of erosion in an economic sense—which consists of converting the various effects into a common denominator: euros. If we can predict the impact of erosion control measures on erosion rates, we can know the benefit of these measures. The cost also needs to be calculated, not in terms of money but in terms of resources expended (which could have been used for other purposes) and in terms of possible negative impacts of erosion control (for instance, increased use of herbicides in reduced-tillage systems).There are important other considerations which economists may study. Firstly, there is the comparison of present versus future costs and benefits: how much can we sacrifice today for higher sustainability tomorrow?Secondly, there is the issue of private versus public costs and benefits: how do the goals of private land users differ from (those of?) the public good, how can this help us to predict land users’ behaviour, and what incentives would be appropriate to make them behave in such a way as to maximize the public good? Thirdly, how do we deal with uncertainty and risk?These problems loomed large in a study to support an extended impact assessment for the EU Soil Thematic Strategy, in 2005. Whereas much research has been done on erosion and its impact, much of this is on a small scale. The extent of the problem on a national, let alone a continental or a global scale, is still poorly known. The paper discusses how these problems were faced, which is not the same as saying they were resolved.  相似文献   
23.
24.
25.
This article describes the context and methodology used in formulating and validating a senior-level human resource competency model for professional development. The development and implementation of the architecture for the model, including the provision of various developmental tools and experiences, was undertaken by the Society of Human Resource Management, a professional association dedicated to the advancement of the human resource profession. The purpose of this effort is to specify benchmarks for professional competence building and to reposition the emerging role and processes associated with the human resource function in responding to the changing organizational and competitive challenges facing United States-based, multinational organizations. © 1996 by John Wiley & Sons, Inc.  相似文献   
26.
27.
Fisheries management is characterised by multiple objectives, some of which may be complementary, while others may require trade‐offs between outcomes. Balancing these objectives is made more complex in the case of multispecies and multigear fisheries. In this paper, we develop a bioeconomic model that captures the key elements of such a fishery to test a range of potential harvest strategies to provide insights into how economic target reference points could lead to both desirable and undesirable management outcomes (e.g. discards). The model is developed as a long‐run optimisation model to identify target reference points to achieve multispecies maximum economic yield, and a dynamic recursive optimisation model, which includes more realistic representation of fishers’ behaviour, such as discards and trading of under‐caught species quotas. The potential economic, social and ecological impacts are evaluated using data envelopment analysis (DEA). The results suggest that the use of proxy target reference points can result in short‐term economic benefits at the cost of slower stock recovery and higher discarding. Limiting the number of species subject to quota controls may also prove beneficial in multispecies fisheries, while ensuring quota markets are efficient is likely to produce benefits irrespective of the harvest strategy adopted.  相似文献   
28.
Employer‐sponsored voice practices (ESVPs) are a tool used by human resource management to increase voice behavior and fulfill legal requirements for employee participation and consultation. Conceptual papers question the usefulness of ESVPs, arguing that they may promote selective expression at work in the way that employees who use ESVPs suggest work‐related process improvements (i.e., promotive voice) but still remain silent about issues that disturb smooth cooperation (i.e., cooperative silence). Prior research that treated voice and silence as being mutually exclusive cannot clarify how using ESVPs relates to voice and silence and under which conditions these links are particularly strong. Drawing from an employee survey in a UK branch of a multinational technology company, we apply a differentiated approach that treats voice and silence as separate behaviors and considers their specific motivators. Results from structural equation modeling show that even though employees use ESVPs and engage in voice, silence may still linger as a potential threat to performance and well‐being. Moreover, moderator analyses revealed that affective attachment to the organization increased and job engagement decreased the occurrence of this potentially dangerous coincidence. Our findings provide evidence for the usefulness of more differentiated approaches to employee voice and silence and indicate that factors that facilitate voice, be they formal procedures or pro‐organizational attitudes, might not suffice to overcome silence at work. We close with a discussion on ways to facilitate voice while reducing silence at the same time. © 2015 Wiley Periodicals, Inc.  相似文献   
29.
Many wildlife tourist attractions (WTAs) have negative impacts on animal welfare and species conservation. In the absence of regulation, raising standards requires tourists to create market pressure by choosing to attend WTAs with benefits for wildlife. We surveyed respondents from five countries – China, Australia, Canada, UK, and USA – to quantify how attitudes to captive animals, and towards WTAs’ outputs and standards, may vary with nationality. Our aim was to provide a firm basis for behaviour change interventions to alter current patterns of tourist consumption of WTAs. All respondents agreed on the importance of conservation and animal welfare, but Chinese respondents were twice as likely to believe that WTAs would not be allowed to exist if they were bad for animals, and that WTAs’ promotional materials were reliable indicators of welfare and conservation standards. These findings indicate Chinese respondents had fundamentally similar attitudes to those from the other countries, but differed in how those attitudes were likely to be applied. Chinese tourists may experience more barriers to aligning their actions with their values with respect to WTAs. Removing these barriers may require information campaigns to highlight the lack of regulation, and the unreliability of some WTAs’ promotional materials and tourists’ reviews.  相似文献   
30.
Capitation fees are considered to be an option for a change in funding principles for statutory health care insurance. This paper discusses several models of capitation fees either to be introduced for a part of the population or for all citizens. It analyses the impact of a change in financing health care on the labour market. Therefore microeconomic theory and a QUERU-model is applied. It also considers the issue of presently co-insured dependents.  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