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   23367篇
  免费   137篇
财政金融   4713篇
工业经济   1773篇
计划管理   4024篇
经济学   4849篇
综合类   255篇
运输经济   216篇
旅游经济   383篇
贸易经济   4016篇
农业经济   863篇
经济概况   2327篇
信息产业经济   6篇
邮电经济   79篇
  2023年   133篇
  2021年   177篇
  2020年   339篇
  2019年   468篇
  2018年   538篇
  2017年   559篇
  2016年   532篇
  2015年   394篇
  2014年   599篇
  2013年   2509篇
  2012年   706篇
  2011年   828篇
  2010年   759篇
  2009年   811篇
  2008年   735篇
  2007年   652篇
  2006年   591篇
  2005年   556篇
  2004年   515篇
  2003年   528篇
  2002年   514篇
  2001年   475篇
  2000年   470篇
  1999年   486篇
  1998年   442篇
  1997年   419篇
  1996年   353篇
  1995年   348篇
  1994年   369篇
  1993年   369篇
  1992年   385篇
  1991年   367篇
  1990年   279篇
  1989年   259篇
  1988年   240篇
  1987年   238篇
  1986年   240篇
  1985年   364篇
  1984年   346篇
  1983年   326篇
  1982年   307篇
  1981年   265篇
  1980年   250篇
  1979年   235篇
  1978年   216篇
  1977年   198篇
  1976年   182篇
  1975年   162篇
  1974年   135篇
  1973年   130篇
排序方式: 共有10000条查询结果,搜索用时 0 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.
Recent evidence suggests that many small to medium sized enterprises (SMEs) in the UK experience difficulty growing from the start-up phase into larger well established firms. This research uses survey data from UK instruments, printing and software SMEs to explore the attitudes of SME managers towards growth, to identify the strategies they pursue to achieve growth, and to establish the main factors they perceive to be limiting their growth. We find that although most managers profess to value growth and follow expansionary strategies, the main limits on the growth of SMEs are the intensity of competition stemming from the recession, and the inability or unwillingness of management to deal with the increased administrative burden arising from expansion.  相似文献   
4.
Abstract:   The relationship between past net asset value returns and the current discount on investment trusts is investigated. The relationship is weaker for the component that is common to all trusts in the same sector, and is significantly stronger for more liquid trusts. The time lag before returns have their full impact on discounts is consistent with the requirements of distinguishing 'skill' from noise. Although discounts vary widely even within the same sector, the range of variation appears to be consistent with an arbitrage equilibrium, in which the profits of exploiting apparent pricing anomalies are just insufficient to invite arbitrage trades.  相似文献   
5.
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   
6.
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   
7.
8.
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   
9.
10.
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   
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