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   16979篇
  免费   358篇
  国内免费   1篇
财政金融   3551篇
工业经济   1233篇
计划管理   2841篇
经济学   3867篇
综合类   203篇
运输经济   95篇
旅游经济   251篇
贸易经济   2642篇
农业经济   829篇
经济概况   1747篇
邮电经济   79篇
  2020年   202篇
  2019年   263篇
  2018年   325篇
  2017年   371篇
  2016年   342篇
  2015年   237篇
  2014年   358篇
  2013年   1601篇
  2012年   441篇
  2011年   471篇
  2010年   404篇
  2009年   469篇
  2008年   417篇
  2007年   429篇
  2006年   371篇
  2005年   338篇
  2004年   310篇
  2003年   356篇
  2002年   315篇
  2001年   321篇
  2000年   367篇
  1999年   299篇
  1998年   313篇
  1997年   317篇
  1996年   302篇
  1995年   305篇
  1994年   311篇
  1993年   295篇
  1992年   330篇
  1991年   341篇
  1990年   270篇
  1989年   217篇
  1988年   236篇
  1987年   216篇
  1986年   250篇
  1985年   347篇
  1984年   336篇
  1983年   292篇
  1982年   306篇
  1981年   334篇
  1980年   282篇
  1979年   280篇
  1978年   253篇
  1977年   191篇
  1976年   187篇
  1975年   194篇
  1974年   141篇
  1973年   164篇
  1972年   120篇
  1971年   103篇
排序方式: 共有10000条查询结果,搜索用时 75 毫秒
1.
Major tax reform to simplify the UK tax system is possible. Merging income taxes, social security taxes and corporation tax into only a single flat-rate of tax on all incomes would be a radical start. Avoiding taxes on income and expenditure which are 'too high' requires major reductions in government spending, mainly on the welfare state. Given the political will, over a period of years we really can hugely improve the UK tax system.  相似文献   
2.
This article examines the demographic and geographical importance of wealthy middle-class women. It argues that in certain towns and cities, notably London, such women were of sufficient importance to merit attention in their own right. Drawing upon a sample of wills, it describes the types of wealth owned by these women. By examining women's investment in government securities, it argues that women's wealth was of crucial importance to the British state. Its findings challenge conventional understandings of the relationships between gender ideology, wealth holding, and economic development.  相似文献   
3.
4.
5.
In this paper we will analyze the relationship between the value and duration moments of a cash flow and movements in the yield curve. We will show that for changes in the yield curve which can be related to tn , the 1st order changes in the net present value of a cash flow are linearly dependent on the n + lth duration moments, and that the 2nd order changes are dependent on the sum of duration moments of order 2 n + 1 and 2 n + 2. We will use this relationship to tilt tracking portfolios so as to protect them against specific changes in the yield curve.  相似文献   
6.
The paper highlights the main drivers for merger policy reform in the European Union, including the consequences of the recent appeal court reverses. It discusses some of the substantive and procedural issues that the reform package should address, and outlines the reforms in progress. The author concludes that much of the reform package will be beneficial, but some important opportunities have been missed in this inevitably patchwork process.  相似文献   
7.
Previous research finds that large companies previously judged to be excellent growth companies have subsequently been poor investments. We examine small companies selected by Business Week on the basis of multiple criteria used in annual articles featuring highly rated growth companies. We study the investment performance over the three years before eleven annual Business Week publications and the three years after publication. We find positive excess returns in the pre‐publication period, but negative excess returns in the post‐publication period. This reversal in investment performance appears to be due to a mean‐reversion tendency in operating performance, in which the earnings and the past rates of return on capital of such companies subsequently decrease significantly.  相似文献   
8.
9.
This study examines the influence of day-of-the-week patterns in security returns on long-run IPO underperformance. Comparisons are made between the IPOs in Ritter's [20] database, and a constructed set of matching firms based on SIC code and size, using NYSE, AMEX, and NASDAQ securities. It is found that virtually all of the IPO underperformance occurs on Mondays and Tuesdays and that the degree of underperformance significantly differs from other days. Thus, a common explanation may exist for the general day-of-the-week pattern in security returns and IPO long-run underperformance.  相似文献   
10.
In this paper we offer a method for deciding how to aggregate a set of elementary industries. The method is then applied to the problem of estimating a wage equation that allows for industry-specific effects. Our method explicitly formalizes the trade-off between goodness-of-fit and parsimony implicit in an aggregation problem. By varying the parameter of the assumed loss function, one obtains a whole sequence of aggregation levels. Further, the resulting sequence is consistent; that is, groupings formed at one level of aggregation will never be undone when one aggregates further.  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