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   27406篇
  免费   514篇
  国内免费   1篇
财政金融   5511篇
工业经济   2118篇
计划管理   4389篇
经济学   6025篇
综合类   359篇
运输经济   136篇
旅游经济   374篇
贸易经济   4161篇
农业经济   1440篇
经济概况   3317篇
信息产业经济   2篇
邮电经济   89篇
  2020年   270篇
  2019年   367篇
  2018年   436篇
  2017年   479篇
  2016年   450篇
  2015年   315篇
  2014年   467篇
  2013年   2516篇
  2012年   638篇
  2011年   706篇
  2010年   618篇
  2009年   738篇
  2008年   664篇
  2007年   622篇
  2006年   587篇
  2005年   574篇
  2004年   503篇
  2003年   590篇
  2002年   500篇
  2001年   542篇
  2000年   579篇
  1999年   506篇
  1998年   520篇
  1997年   527篇
  1996年   549篇
  1995年   519篇
  1994年   520篇
  1993年   466篇
  1992年   516篇
  1991年   538篇
  1990年   451篇
  1989年   365篇
  1988年   387篇
  1987年   333篇
  1986年   411篇
  1985年   571篇
  1984年   555篇
  1983年   511篇
  1982年   496篇
  1981年   536篇
  1980年   462篇
  1979年   468篇
  1978年   420篇
  1977年   325篇
  1976年   307篇
  1975年   316篇
  1974年   254篇
  1973年   252篇
  1972年   205篇
  1971年   189篇
排序方式: 共有10000条查询结果,搜索用时 0 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.
8.
9.
Using a sample of Australian Multi-sector trusts we examine selectivity and market timing performance and extend the analysis to include the relatively new measure of volatility timing. This is of particular relevance to our data set, as high levels of volatility persistence are prevalent in Australia. In addition we consider the stability, asymmetry and seasonality of the various performance and risk measures. A survivorship adjustment procedure is also employed in order to assess the impact of survivorship on selectivity, market timing and volatility timing performance.  相似文献   
10.
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   
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