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   2390篇
  免费   97篇
财政金融   413篇
工业经济   126篇
计划管理   470篇
经济学   631篇
综合类   29篇
运输经济   36篇
旅游经济   16篇
贸易经济   548篇
农业经济   45篇
经济概况   147篇
邮电经济   26篇
  2023年   27篇
  2022年   30篇
  2021年   38篇
  2020年   56篇
  2019年   89篇
  2018年   105篇
  2017年   89篇
  2016年   110篇
  2015年   87篇
  2014年   133篇
  2013年   267篇
  2012年   133篇
  2011年   143篇
  2010年   174篇
  2009年   132篇
  2008年   127篇
  2007年   89篇
  2006年   70篇
  2005年   61篇
  2004年   51篇
  2003年   41篇
  2002年   58篇
  2001年   35篇
  2000年   27篇
  1999年   32篇
  1998年   39篇
  1997年   18篇
  1996年   26篇
  1995年   17篇
  1994年   11篇
  1993年   16篇
  1992年   10篇
  1991年   8篇
  1990年   6篇
  1989年   8篇
  1988年   8篇
  1987年   5篇
  1986年   9篇
  1985年   8篇
  1984年   6篇
  1983年   13篇
  1982年   6篇
  1980年   6篇
  1979年   6篇
  1978年   5篇
  1977年   6篇
  1972年   4篇
  1971年   4篇
  1967年   7篇
  1966年   8篇
排序方式: 共有2487条查询结果,搜索用时 15 毫秒
1.
2.
3.
The principal aim of this paper is to evaluate the impact of the future European high-speed train network on accessibility, by reducing time distance between places and modifying their relative location. We compare the current situation with that foreseen for the year 2010, according to the Outline Plan of the European High-Speed Train Network, in order to analyse which areas will most benefit from construction and improvement of the infrastructure. It is hypothesized that the high-speed train will certainly bring the peripheral regions closer to the central ones, but will also increase imbalances between the main cities and their hinterlands. A weighted average distance indicator is applied for this purpose. This measure identifies the spatial distribution of accessibility in the area of study, emphasizing the infrastructure effects, and locates accessibility changes at the European level. A Geographic Information System (GIS) has been used to carry out this study.  相似文献   
4.
5.
Two models of spot labor markets are presented in which labor suppliers have heterogeneous attitudes towards effort and in which uncertainty prevails on labor productivity and growth. The problem of selecting efficient rules to manage unemployment insurance (UI) systems is considered. We show that there does not exist any system which combines an efficient allocation of labor with an efficient allocation of risks among employees, unemployed workers and capital-owners. Pareto-efficient policy rules are a best compromise between these two conflicting objectives. It implies that productive efficiency could be improved in periods of mass unemployment by reducing UI benefits. That would be at the expense of more inefficiencies in the sharing of macroeconomic risks. At the optimum, the UI benefit is positively correlated to growth and it is negatively correlated to labor productivity.  相似文献   
6.
7.
Kamstra et al. [Kamstra, M.J., Kramer, L.A., Levi, M.D., 2000. Losing sleep at the market: the daylight saving anomaly. The American Economic Review 90, 1005–1011] argue that the mean weekend return following the changes in daylight saving time is less than the mean weekend return throughout the rest of the year. Opposing studies, such as Pinegar [Pinegar, J.M., 2002. Losing sleep at the market: comment. The American Economic Review 92, 1251–1256), reason that the observed results depend upon methodology. We extend the ongoing discussions by providing further evidence for equity markets and bond markets in Germany and across Europe. We further demonstrate that the daylight saving effect does not serve as a potential rationale for the weekend effect.  相似文献   
8.
We provide a partial ordering view of horizontal inequity (HI), based on the Lorenz criterion, associated with different post‐tax income distributions and a (bistochastic) non‐parametric estimated benchmark distribution. As a consequence, several measures consistent with the Lorenz criterion can be rationalized. In addition, we establish the so‐called HI transfer principle, which imposes a normative minimum requirement that any HI measure must satisfy. Our proposed HI ordering is consistent with this principle. Moreover, we adopt a cardinal view to decompose the total effect of a tax system into a welfare gain caused by HI‐free income redistribution and a welfare loss caused by HI, without any additive decomposable restriction on the indices. Hence, more robust tests can be applied. Other decompositions in the literature are seen as particular cases.  相似文献   
9.
While it is well recognized that US metropolitan areas are polycentric, there is little consensus as to the appropriate method for identifying concentrations of employment within them. Existing methods suffer from strong assumptions about parametric form, misspecification, or reliance on local knowledge to calibrate model parameters. This paper introduces a new nonparametric method for identifying subcenters. Results indicate that this, more flexible, nonparametric approach yields greater accuracy with regard to both urban and suburban centers compared with other approaches. This approach should provide better data for the numerous topics that depend on the spatial accounting of employment within metropolitan areas.  相似文献   
10.
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