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   21867篇
  免费   498篇
财政金融   4258篇
工业经济   1970篇
计划管理   3561篇
经济学   4629篇
综合类   242篇
运输经济   188篇
旅游经济   335篇
贸易经济   3407篇
农业经济   1221篇
经济概况   2537篇
信息产业经济   2篇
邮电经济   15篇
  2021年   135篇
  2020年   266篇
  2019年   369篇
  2018年   415篇
  2017年   430篇
  2016年   402篇
  2015年   306篇
  2014年   436篇
  2013年   2242篇
  2012年   573篇
  2011年   648篇
  2010年   586篇
  2009年   714篇
  2008年   688篇
  2007年   577篇
  2006年   579篇
  2005年   572篇
  2004年   498篇
  2003年   545篇
  2002年   464篇
  2001年   466篇
  2000年   459篇
  1999年   423篇
  1998年   408篇
  1997年   428篇
  1996年   408篇
  1995年   388篇
  1994年   377篇
  1993年   328篇
  1992年   341篇
  1991年   350篇
  1990年   308篇
  1989年   261篇
  1988年   253篇
  1987年   236篇
  1986年   259篇
  1985年   366篇
  1984年   388篇
  1983年   378篇
  1982年   328篇
  1981年   311篇
  1980年   288篇
  1979年   296篇
  1978年   248篇
  1977年   225篇
  1976年   193篇
  1975年   167篇
  1974年   175篇
  1973年   143篇
  1972年   122篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
21.
This study investigates the relative roles of bond ratings and financial information in the setting of bond yields. Structural equation modeling techniques are used to learn whether ratings determine yields or whether both ratings and yields are determined by a concurrent set of economic and financial factors. Tests of alternative structural model configurations provide evidence regarding the associations between bond ratings, financial information, and bond yields. Both ratings and financial information are found to play an important role in determining bond yields. In addition, yields are consistent with the higher rating in cases of split ratings.  相似文献   
22.
23.
Whilst the local multiplier impacts of the annual operation of universities has been the subject of intensive research, the economic impacts of capital construction projects have been almost completely ignored. This paper presents the results of detailed analysis of capital projects at Lancaster University in 1993-The reasons for the radically different annual operation and construction multipliers estimated in the Lancaster study are examined. Despite the smaller size of construction multipliers it is argued that it is a serious mistake to estimate local construction multipliers by making simplifying assumptions on the size of the key parameters in the multiplier equations.  相似文献   
24.
A study of the location of three classifications of high-tech industries in rural areas was undertaken using ordinary least squares, Tobit, and a two-step estimation procedure suggested by Heckman (1976). The results indicate that the location decision for high tech firms is influenced primarily by the county population, adjacency to an SMSA, and the expenditures on public infrastructure (exclusive of education expenditures). However, location near interstate highways was generally not a significant factor. Results were similar between branch and unit (single ownership) plants. Some differences in signs of orders of magnitude occurred among the estimation procedures. Making a choice between Tobit and Heckman approaches depends upon the goal of the research.  相似文献   
25.
26.
The Singapore Exchange (SGX), a small satellite market, successfully competes with a large home market, the Osaka Securities Exchange (OSE), in trading the Nikkei 225 futures index. In this paper, we investigate the contribution of the SGX to price discovery and shed light on the reasons for its continued success. Evidence is provided from information revelation and price discovery of three competing but informationally linked markets of the Nikkei 225 index—domestic spot (Tokyo Stock Exchange), domestic futures (OSE), and foreign futures (SGX), which represents the satellite market. Overall, the futures market contributes 77% to price discovery, with the satellite market contributing 42% of the futures and 33% of the total price discovery. These figures, surprisingly, far exceed the satellite market's share of trading volume. Support is provided for the extended trading hours on the SGX for three of the four non‐overlapping trading sub‐periods. © 2004 Wiley Periodicals, Inc. Jrl Fut Mark 24:981–1004, 2004  相似文献   
27.
Here we consider the hedging roles of a price futures contract versus a revenue futures contract. In the absence of idiosyncratic output risk, the revenue contract almost always dominates the price contract. Idiosyncratic output risk provides conditions under which the price contract should dominate. When production risk is largely idiosyncratic, a producer with an anticipated long actuals position might combine a long revenue futures position with a short price futures position. © 2004 Wiley Periodicals, Inc. Jrl Fut Mark 24:503–512, 2004  相似文献   
28.
29.
30.
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