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   2261篇
  免费   116篇
财政金融   504篇
工业经济   212篇
计划管理   381篇
经济学   495篇
综合类   19篇
运输经济   15篇
旅游经济   47篇
贸易经济   420篇
农业经济   111篇
经济概况   169篇
邮电经济   4篇
  2023年   13篇
  2022年   11篇
  2021年   24篇
  2020年   51篇
  2019年   62篇
  2018年   72篇
  2017年   84篇
  2016年   69篇
  2015年   58篇
  2014年   82篇
  2013年   322篇
  2012年   79篇
  2011年   90篇
  2010年   101篇
  2009年   87篇
  2008年   96篇
  2007年   77篇
  2006年   97篇
  2005年   73篇
  2004年   47篇
  2003年   78篇
  2002年   75篇
  2001年   53篇
  2000年   42篇
  1999年   44篇
  1998年   44篇
  1997年   41篇
  1996年   28篇
  1995年   26篇
  1994年   17篇
  1993年   20篇
  1992年   25篇
  1991年   16篇
  1990年   14篇
  1989年   14篇
  1988年   20篇
  1987年   10篇
  1986年   18篇
  1985年   34篇
  1984年   24篇
  1983年   15篇
  1981年   13篇
  1980年   14篇
  1979年   12篇
  1978年   13篇
  1977年   8篇
  1976年   7篇
  1975年   9篇
  1973年   11篇
  1972年   8篇
排序方式: 共有2377条查询结果,搜索用时 31 毫秒
91.
92.
Limited opportunities for crop switching and lengthy preharvesting periods make the plantation sector particularly vulnerable to climate change. Surprisingly, however, the economic consequences of climate change on plantation crops are seldom analysed. Drawing on a unique primary panel data set from a representative cross section of 35 tea estates in Sri Lanka over the period 2002–2014, this study implements a structural model of estate profit maximisation to estimate the elasticity of labour demand with respect to different components of weather. Results indicate a negative relationship between labour demand and rainfall in the south‐west monsoon, the north‐east monsoon and the second inter‐monsoon. A positive relationship is found between labour demand and rainfall in the first inter‐monsoon. Overall, predicted changes in rainfall by 2050 are anticipated to reduce labour demand by approximately 1,175,000 person‐days per year across Sri Lanka's tea plantation sector. This is likely to have considerable social and welfare implications, particularly for the Indian Tamil women who comprise the majority of the sector's workforce.  相似文献   
93.
Export agriculture offers potentially high returns to smallholder farmers in developing countries, but also carries substantial market risk. In this article we examine the intertemporal welfare impact of the timing of a farmer's entry into the export pineapple market in southern Ghana. We examine whether farmers who never cultivated pineapple are better or worse off than farmers who decided to adopt pineapple earlier or later relative to their peers and experienced a significant adverse market shock several years prior to our endline survey. We use a two‐stage least squares model to estimate the causal effect of duration of pineapple farming on farmer welfare. Consistent with economic theory, we find that earlier adoption of the new crop brings greater welfare gains than does later uptake. But we find that the gains to later uptake of pineapple—just before the market shock—are small in magnitude, just 0.1 standard deviations of a comprehensive asset index, indicating that the gains to adoption may be precarious and depend on the context, in particular on the severity of prospective market shocks.  相似文献   
94.
This article uses a novel experimental approach to measure consumer willingness to pay (WTP) for wine attributes. We invited customers of a local supermarket who had selected a bottle of wine to purchase to participate in a valuation experiment. Integrating their original wine choice into the experiment, each participant evaluated six alternative wines, generating a rich set of data on willingness to pay and consumer characteristics. The data from the experiment allow us to compare standard shelf price‐based wine attribute valuation estimates with estimates using WTP data and an increasing amount of information about individual consumers. The full model employs individual fixed effects to estimate WTP parameters without bias from consumer sorting or supply side influences. Our WTP estimates for wine attributes differ markedly from previous attribute value estimates. Consumers in our sample display clear and stable preferences for wine varieties, but less clear preferences for appellations. Our results suggest caution is needed in using market prices to estimate parameters of the consumer valuation function for product attributes.  相似文献   
95.
96.
The lead user concept has attracted a lot of attention from scholars and practitioners alike. However, different studies apply different conceptualizations and measures of the lead user construct. Such variation in measurement of the construct make it almost impossible to consolidate findings from prior lead user research, which in turn hampers the accumulation of insights on the concept itself. This is also a challenge with respect to managerial practice: due to different interpretations of the concept, managers and R&D staff find it difficult to identify lead users for workshops and cooperation, and companies are often unable to transfer results from lead user projects to new product and business development. As a result, they only rarely repeat their work with lead users. The aim of this article is therefore to provide some thoughts and guidance on the conceptualization and measurement of the lead user construct.  相似文献   
97.
We analyse the optimal location choice of a monopolistic firm that operates two arbitrarily located platforms on a two‐sided market. By extending the traditional Hotelling framework, we show that the optimal platform locations are equivalent to the one‐sided benchmark if both sides are either restricted to single‐ or multi‐homing. In the mixed case (one side single‐homes, the other one multi‐homes), the optimal platform locations are in line with the respective symmetric case. If the monopolist is restricted to choosing the same location on either side of the market, the optimal locations are determined by the relative profitability of the market sides.  相似文献   
98.
The life‐blood of most organizations is knowledge. Too often, the very mechanisms set up to facilitate knowledge flow militate against it. This is because they are instituted in a top‐down way, they are cumbersome to manage and the bridges of trust fail to get built. In their thirst for innovation, the tendency is for firms to set up elaborate transmission channels and governance systems. As a result, staff are drowned in a deluge of mundane intranet messages and bewildered by matrix structures, while off‐the‐wall ideas and mould‐breaking insights are routinely missed. Added to this is the challenge of operating across professional, cultural, regional and linguistic boundaries, where ways of sharing knowledge differ markedly, even within the same project team. Drawing upon extensive research with scientists in the ATLAS collaboration (a high‐energy particle physics experiment comprising 3,500 scientists from 38 countries), we explore five paradoxes associated with knowledge exchange in global networks. Each paradox leads to a proposition which takes the theory and practice of knowledge management in a fresh direction. We conclude by outlining a number of HRM priorities for international knowledge‐intensive organizations.  相似文献   
99.
This paper uses national data on individual physicians and two control groups to provide evidence on the extent to which each of five medical malpractice reforms impacts the decision to move one's medical practice to another state. We find robust evidence that states that have implemented noneconomic damage caps experience less out-migration of physicians than states that do not have these reforms. In addition, we find some evidence that joint and several liability reforms and patient compensation funds also impact the migration decisions of physicians.  相似文献   
100.
The concept of ‘Devolution’—the transfer of powers away from the Central Government to more local bodies of Government, has been used across many different areas of policy and by many different national governments. This paper examines the devolution of transport powers to the existing Local Traffic Authorities in England via the 2004 Traffic Management Act. The paper first presents a summary of how several different nations have undertaken this process of devolving transport powers and responsibilities to either new or existing bodies. It then presents research from an electronic survey concerning how English Local Traffic Aut`horities are choosing to use some of the new powers available to them and their opinion on complementary areas of transport policy. Research is also presented from structured telephone interviews, concerning how individual Local Authorities perceive the efficacy and equity of the new legislation. Overall, the results show that only some of these new powers are likely to be used by English Local Authorities, with limited variation in how different types of LTA are choosing to implement these new powers. The structured telephone interviews provided some evidence that rural Authorities in particular are more dissatisfied with the legislation and consider some of the measures unhelpful. The results provide some insights on the formulation of devolved policy applicable to existing Local Government bodies and the varying benefits that can be perceived to apply to different types of Local Authority. Conclusions are drawn on some of the practical difficulties arising from the English experience, and lessons of relevance are drawn for other nations considering a similar devolution of transport powers.  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