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   14216篇
  免费   319篇
  国内免费   2篇
财政金融   2984篇
工业经济   1070篇
计划管理   2277篇
经济学   3044篇
综合类   160篇
运输经济   100篇
旅游经济   222篇
贸易经济   2268篇
农业经济   621篇
经济概况   1773篇
信息产业经济   2篇
邮电经济   16篇
  2023年   74篇
  2021年   91篇
  2020年   198篇
  2019年   254篇
  2018年   336篇
  2017年   338篇
  2016年   312篇
  2015年   205篇
  2014年   328篇
  2013年   1592篇
  2012年   392篇
  2011年   481篇
  2010年   429篇
  2009年   444篇
  2008年   401篇
  2007年   362篇
  2006年   334篇
  2005年   265篇
  2004年   272篇
  2003年   273篇
  2002年   274篇
  2001年   281篇
  2000年   291篇
  1999年   292篇
  1998年   299篇
  1997年   264篇
  1996年   221篇
  1995年   219篇
  1994年   236篇
  1993年   240篇
  1992年   262篇
  1991年   252篇
  1990年   200篇
  1989年   181篇
  1988年   165篇
  1987年   162篇
  1986年   167篇
  1985年   237篇
  1984年   253篇
  1983年   244篇
  1982年   211篇
  1981年   195篇
  1980年   168篇
  1979年   167篇
  1978年   156篇
  1977年   133篇
  1976年   123篇
  1975年   139篇
  1974年   99篇
  1973年   100篇
排序方式: 共有10000条查询结果,搜索用时 35 毫秒
1.
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   
2.
3.
4.
The speed with which communist China has embuaced markets has surprised Western analysis and observers, But Chinese economic progress will founder in corruption and inefficiency, argues Professor Steven Cheung of the university of Hong Kong, untess she insitutes a well-defined system of private property rights to safeguord investment and stimulate trade.  相似文献   
5.
As the elderly population of the United States grows in absolute number and as a proportion of total population, accurate projections of that population become increasingly important for sound policy decisions. Cohort component techniques are typically used for state and local projections of the elderly population, but are often outdated or even nonexistent for many local areas. This paper suggests an alternative approach, based on Medicare data and simple projection techniques. Projections for several base periods and projection horizons are made for all states and for counties in Florida and are compared with actual Medicare enrollment. On the basis of these comparisons it appears that Medicare data and simple projection techniques can produce very useful short-run projections of the elderly population for states and local areas.  相似文献   
6.
7.
The paper seeks to evaluate the evidence on the employment effectsof the collective working-time reductions in Europe over thepast 20 years. While theoretical analyses produce contradictoryassessments, most empirical studies show positive employmenteffects but take insufficient account of these conditions underwhich the reductions in working time were implemented. Theseconditions for the success of collective working-time reductionsinclude an active training policy designed to minimise skillshortages in the labour market, the modernisation of work organisation,wage increases in conjunction with productivity gains and amore equal income distribution.  相似文献   
8.
9.
Abstract:  Loan announcement effects for 152 Canadian companies are examined to investigate the efficiency of monitoring by banks facing lender environmental liability. Market reaction to the announcement of bank debt to 'environmental' firms is more positive and significant than for 'non-environmental' firms and, for firms in industries with a higher likelihood of experiencing spill events, is more positive and significant, reinforcing earlier results that establish a relationship between specific loan/borrower characteristics and announcement period excess returns and providing further evidence on the 'uniqueness' of bank loans by demonstrating the superior ability of banks to monitor corporate borrowers exposed to environmental liability.  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