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   2394篇
  免费   64篇
财政金融   533篇
工业经济   245篇
计划管理   388篇
经济学   484篇
综合类   55篇
运输经济   27篇
旅游经济   29篇
贸易经济   381篇
农业经济   145篇
经济概况   165篇
邮电经济   6篇
  2022年   11篇
  2021年   13篇
  2020年   38篇
  2019年   34篇
  2018年   62篇
  2017年   61篇
  2016年   52篇
  2015年   30篇
  2014年   59篇
  2013年   286篇
  2012年   63篇
  2011年   66篇
  2010年   72篇
  2009年   72篇
  2008年   85篇
  2007年   80篇
  2006年   80篇
  2005年   58篇
  2004年   70篇
  2003年   83篇
  2002年   63篇
  2001年   75篇
  2000年   55篇
  1999年   40篇
  1998年   61篇
  1997年   33篇
  1996年   38篇
  1995年   50篇
  1994年   36篇
  1993年   24篇
  1992年   37篇
  1991年   28篇
  1990年   31篇
  1989年   26篇
  1988年   23篇
  1987年   19篇
  1986年   17篇
  1985年   41篇
  1984年   41篇
  1983年   45篇
  1982年   43篇
  1981年   42篇
  1980年   33篇
  1979年   30篇
  1978年   38篇
  1977年   22篇
  1976年   15篇
  1975年   8篇
  1974年   16篇
  1973年   13篇
排序方式: 共有2458条查询结果,搜索用时 0 毫秒
91.
Walter Adams is one of the strongest critics of the Chicago School of Economics. Yet he was trained at the University of Chicago. This article traces Adams' education in economics and delineates two distinct Chicago traditions of antitrust policy. Adams is linked to the earlier Chicago tradition of Henry Simons and, to some extent, Frank Knight. The consistency of Adams' policy views on antitrust is shown and the connection of these views to pragmatism and Jeffersonian precepts is argued.  相似文献   
92.
93.
94.
95.
In this paper, we characterize the multiperiod minimum-risk hedge strategy within the stochastic volatility (SV) framework and compare it to other hedge strategies on the basis of hedging performance. Using crude oil markets as an example, we demonstrate that the SV model is appropriate in depicting price behaviour. However, ex ante and ex post comparisons indicate that the SV strategy is inferior to conventional hedging strategies. There is also evidence that the Generalized Autoregressive Conditional Heteroskedasticity (GARCH) strategy may be better than the SV strategy, at least in terms of variance reduction.  相似文献   
96.
New York Stock Exchange specialists disseminate informationto market participants by displaying price schedules consistingof bid prices, ask prices, bid depths, and ask depths. We examinehow specialists update these price schedules in a simultaneousequations model. We find that changes in the best prices anddepths on the limit order book have a significant impact onthe posted price schedule, while the effects of transactionsand order activity are secondary. Furthermore, we show thatspecialists revise prices and depths differently, but find noevidence that they revise the price schedule in response tochanges in inventory.  相似文献   
97.
98.
99.
Annual data on U.S. hospitals from 1985–1988 are evaluated by ownership type—profit, nonprofit, state and local government, and U.S. Department of Veterans Affairs (VA)—for changes in hospital productivity over time. Distance functions are used to measure Malmquist indices of productivity change, which are then decomposed into indices of efficiency change and technology change. In contrast to previous studies using this approach, we allow for variable returns to scale and use both input and output orientations. We find that changes in technology dominate changes in inefficiency in determining changes in productivity.  相似文献   
100.
It is apparent that more and more organizations are embarking on collaborative ventures to develop products. This is particularly evident in Information and Communication Technology (ICT) sectors, so much so that part of the 'received wisdom' of ICT companies is that collaboration is the preferred route for product development. The benefits of collaboration have been well documented and are linked to the complexity and costliness of product development and the need for inputs from wide and varied areas of expertise as well as shorter lead times for product development. But the risks and costs of collsborative product development have been less well defined. In this paper, it is argued that the alleged rewards of collaboration may not be experienced in practice and that collaboration can lengthen the product development process, add to the cost of product development and prove difficult to control. However, management practice can facilitate the effective outcome of collaborative product development and the critical factors affecting the likelihood of successful management practice are presented here.  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