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   24154篇
  免费   512篇
财政金融   4323篇
工业经济   1701篇
计划管理   4112篇
经济学   5626篇
综合类   259篇
运输经济   198篇
旅游经济   371篇
贸易经济   4020篇
农业经济   1253篇
经济概况   2725篇
信息产业经济   3篇
邮电经济   75篇
  2023年   112篇
  2021年   156篇
  2020年   298篇
  2019年   471篇
  2018年   513篇
  2017年   557篇
  2016年   543篇
  2015年   366篇
  2014年   603篇
  2013年   2561篇
  2012年   801篇
  2011年   845篇
  2010年   735篇
  2009年   832篇
  2008年   766篇
  2007年   681篇
  2006年   658篇
  2005年   566篇
  2004年   517篇
  2003年   512篇
  2002年   463篇
  2001年   537篇
  2000年   490篇
  1999年   453篇
  1998年   501篇
  1997年   447篇
  1996年   448篇
  1995年   379篇
  1994年   381篇
  1993年   380篇
  1992年   380篇
  1991年   400篇
  1990年   362篇
  1989年   274篇
  1988年   278篇
  1987年   285篇
  1986年   262篇
  1985年   379篇
  1984年   381篇
  1983年   359篇
  1982年   303篇
  1981年   293篇
  1980年   300篇
  1979年   284篇
  1978年   241篇
  1977年   205篇
  1976年   189篇
  1975年   174篇
  1974年   161篇
  1973年   152篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
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   
3.
The number of firms using alliances as part of their corporate venturing or market entry strategies has surged over the past decade. Three common reasons cited for pursuing alliances are technology convergence, market access and alliance partners' complementary resources. This paper contrasts the alliance strategies of HP and IBM, two major competitors in electronic services (i.e. Internet-based 'e- service') businesses, using the Familiarity Matrix as a display tool to portray the strategies. Whereas the HP strategy is to attempt to establish its technology infrastructure as the standard e-services infrastructure on the Internet, IBM aims to position its IBM Global Services, rather than its technology, at the center of this ecosystem.  相似文献   
4.
This paper examines monthly wage data collected by the Agro Economic Survey from seven villages in the Cimanuk River Basin of West Java, where data on agricultural and non-agricultural wages and prices of nine essential commodities were collected twice monthly between 1977 and 1983. Movements in money wages deflated by both the rice price and a weighted index of basic commodities are analysed in detail and differences between lowland and upland villages are discussed.  相似文献   
5.
If actively managed mutual funds suffer from diminishing returns to scale, funds should alter investment behavior as assets under management increase. Although asset growth has little effect on the behavior of the typical fund, we find that large funds and small‐cap funds diversify their portfolios in response to growth. Greater diversification, especially for small‐cap funds, is associated with better performance. Fund family growth is related to the introduction of new funds that hold different stocks from their existing siblings. Funds with many siblings diversify less rapidly as they grow, suggesting that the fund family may influence a fund's portfolio strategy.  相似文献   
6.
Replacement investment is essentially a regenerative optimal stopping problem; that is, the key decision concerns when to terminate the life of existing plant – and hence when to start over again. This paper examines this optimisation problem within a continuous time framework and studies the qualitative and quantitative impact of uncertainty on the timing of new investment (and the criteria that should be used for terminating the life of existing plant).  相似文献   
7.
8.
9.
10.
In this paper the role of expenses in explaining closed-end fund discounts is re-examined. A present value model is developed to illustrate the relationship between expenses and discounts. Earlier studies find that discounts are not related to management fees. In this paper, using a larger sample over a longer and different period and a better specification of the expense variable consistent with the model developed, discounts are found to be significantly related to expenses. The relationship between expenses and discounts holds in the presence of other control variables.  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