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   18568篇
  免费   74篇
财政金融   2918篇
工业经济   869篇
计划管理   2905篇
经济学   4286篇
综合类   488篇
运输经济   13篇
旅游经济   35篇
贸易经济   4763篇
农业经济   70篇
经济概况   1679篇
信息产业经济   44篇
邮电经济   572篇
  2021年   18篇
  2020年   35篇
  2019年   44篇
  2018年   2347篇
  2017年   2099篇
  2016年   1254篇
  2015年   126篇
  2014年   132篇
  2013年   304篇
  2012年   505篇
  2011年   2014篇
  2010年   1890篇
  2009年   1585篇
  2008年   1572篇
  2007年   1936篇
  2006年   122篇
  2005年   440篇
  2004年   509篇
  2003年   594篇
  2002年   290篇
  2001年   98篇
  2000年   81篇
  1999年   38篇
  1998年   47篇
  1997年   29篇
  1996年   37篇
  1995年   17篇
  1994年   18篇
  1993年   20篇
  1992年   15篇
  1991年   13篇
  1990年   17篇
  1989年   11篇
  1987年   10篇
  1986年   21篇
  1985年   15篇
  1984年   12篇
  1983年   21篇
  1982年   17篇
  1981年   11篇
  1980年   21篇
  1979年   20篇
  1978年   13篇
  1977年   11篇
  1975年   13篇
  1971年   10篇
  1967年   10篇
  1963年   11篇
  1961年   11篇
  1960年   9篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
101.
102.
This paper is interested in the modelling of the relationship between active and passive labour market policies and the aggregate unemployment outflow rate. Our model is based on a matching function and includes a simple representation of the competition between various groups of job searchers. The empirical analysis uses Belgian data. Faced with variables that are often integrated of order 1 according to the usual tests but which cannot strictly speaking be integrated, we contribute to an important methodological debate by comparing the conclusions of a classical econometric analysis and a cointegration approach.  相似文献   
103.
104.
105.
106.
UK high street banks are continuing to extend the choice of channel through which customers can manage their moneycolon; an obvious example is e-banking. They have been keen to exploit technological advances and changing customer attitudes to alternative channels. Additionally, competition from leaner new market entrants has provided an added incentive to adopt new approaches. In the light of such developments, it is worth reflecting on the changing nature of the bank–customer relationship. This paper suggests that banks are finding it difficult to manage relationships effectively due, in large measure, to the sheer volume of customer data generated by new interactive, technology-based channels. Paradoxically, it seems that the more data banks have about customers the less likely they are to know them on a personal level. It is further suggested that channels such as e-banking potentially reduce the level of personal contact between bank and customer to the extent that a ‘virtual’ relationship develops. This paper concludes that, given the tendency towards ‘virtualisation’, it is inconceivable that bank–customer relationships will become any more intimate in the future. Indeed, a greater degree of personalisation in customer communication may be the very best that banks are able to offer.  相似文献   
107.
108.
109.
A bilinear multivariate errors-in-variables model is considered. It corresponds to an overdetermined set of linear equations AXB=C, A∈ℝm×n, B∈ℝp×q, in which the data A, B, C are perturbed by errors. The total least squares estimator is inconsistent in this case.  An adjusted least squares estimator is constructed, which converges to the true value X, as m →∞, q →∞. A small sample modification of the estimator is presented, which is more stable for small m and q and is asymptotically equivalent to the adjusted least squares estimator. The theoretical results are confirmed by a simulation study. Acknowledgements. We thank two anonymous reviewers for their suggestions and corrections.? A. Kukush is supported by a postdoctoral research fellowship of the Belgian office for Scientific, Technical and Cultural Affairs, promoting Scientific and Technical Collaboration with Central and Eastern Europe.? S. Van Huffel is a full professor with the Katholieke Universiteit Leuven.? I. Markovsky is a research assistant with the Katholieke Universiteit Leuven.? This paper presents research results of the Belgian Programme on Interuniversity Poles of Attraction (IUAP V-22), initiated by the Belgian State, Prime Minister's Office – Federal Office for Scientific, Technical and Cultural Affairs of the Concerted Research Action (GOA) projects of the Flemish Government MEFISTO-666 (Mathematical Engineering for Information and Communication Systems Technology), of the IDO/99/03 project (K.U. Leuven) “Predictive computer models for medical classification problems using patient data and expert knowledge”, of the FWO projects G.0078.01, G.0200.00, and G0.0270.02.? The scientific responsibility is assumed by its authors.  相似文献   
110.
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