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   22817篇
  免费   4524篇
财政金融   3177篇
工业经济   2665篇
计划管理   3330篇
经济学   5935篇
综合类   257篇
运输经济   98篇
旅游经济   278篇
贸易经济   5192篇
农业经济   3199篇
经济概况   3169篇
邮电经济   41篇
  2024年   182篇
  2023年   449篇
  2022年   287篇
  2021年   270篇
  2020年   637篇
  2019年   1189篇
  2018年   997篇
  2017年   1065篇
  2016年   945篇
  2015年   816篇
  2014年   987篇
  2013年   2226篇
  2012年   1340篇
  2011年   1027篇
  2010年   995篇
  2009年   965篇
  2008年   765篇
  2007年   797篇
  2006年   711篇
  2005年   662篇
  2004年   602篇
  2003年   504篇
  2002年   425篇
  2001年   359篇
  2000年   343篇
  1999年   361篇
  1998年   339篇
  1997年   300篇
  1996年   270篇
  1995年   257篇
  1994年   252篇
  1993年   280篇
  1992年   279篇
  1991年   309篇
  1990年   206篇
  1989年   220篇
  1988年   181篇
  1987年   176篇
  1986年   159篇
  1985年   290篇
  1984年   271篇
  1983年   262篇
  1982年   242篇
  1981年   214篇
  1980年   230篇
  1979年   224篇
  1978年   189篇
  1977年   193篇
  1976年   161篇
  1973年   147篇
排序方式: 共有10000条查询结果,搜索用时 500 毫秒
101.
This paper attempts to understand what drives Japanese venture capital (JVC) fund managers to select either active managerial monitoring or portfolio diversification to manage their firms' investment risks [J. Bus. Venturing 4 (1989) 231]. Unlike U.S. venture capitalists that use active managerial monitoring to gain private information in order to maximize returns [J. Finance 50 (1995) 301], JVCs have traditionally used portfolio diversification to attenuate investment risks [Hamada, Y., 2001. Nihon no Bencha Kyapitaru no Genkyo (Current State of Japanese Venture Capital), Nihon Bencha Gakkai VC Seminar, May 7]. We found that performance pay is positively related to active monitoring and that management ownership is positively related to active monitoring and negatively related to portfolio diversification. The managerial implication of our study is that venture capitalists should be as concerned about the structure of their incentive systems for their fund managers as they are for their investee-firm entrepreneurs. Agency theory says that contingent compensation is a self-governing mechanism for individual effort that is difficult to measure and verify. When properly applied, equity ownership and performance-based pay can have powerful influencing effects on the strategic choices of managers.  相似文献   
102.
QUADRATIC TERM STRUCTURE MODELS FOR RISK-FREE AND DEFAULTABLE RATES   总被引:4,自引:0,他引:4  
In this paper, quadratic term structure models (QTSMs) are analyzed and characterized in a general Markovian setting. The primary motivation for this work is to find a useful extension of the traditional QTSM, which is based on an Ornstein–Uhlenbeck (OU) state process, while maintaining the analytical tractability of the model. To accomplish this, the class of quadratic processes, consisting of those Markov state processes that yield QTSM, is introduced. The main result states that OU processes are the only conservative quadratic processes. In general, however, a quadratic potential can be added to allow QTSMs to model default risk. It is further shown that the exponent functions that are inherent in the definition of the quadratic property can be determined by a system of Riccati equations with a unique admissible parameter set. The implications of these results for modeling the term structure of risk-free and defaultable rates are discussed.  相似文献   
103.
104.
105.
106.
I. IntroductionNations at every stage of development and in every region of the world are more closelylinked through trade in goods and services, through flows of funds and investments ineach others’ economies than ever before. But in sharp contrast to more and more nationsloosening restrictions on international trade, controls over capital flows are still substantialnearly everywhere except in the most developed economies. This is certainly the case inChina, where restrictions on movements …  相似文献   
107.
108.
State Administration for Industry and Commerce (SAIC) decided to launch the campaign to better protect the exclusive right to use a registered trademark and released "Action Plan for the Campaign of Protection of the Exclusive Right to Use a Registered Trademark".  相似文献   
109.
Estimation of the inventory level for an entire class of items is a valuable time saver when control of inventories at the aggregate level, rather than the item level, is of interest. Inventory approximation by location in supply chain network configuration and evaluation of inventory control policy shifts, are two examples of application. In this article, various popular inventory policies are related to a general function known as an inventory turnover curve that expresses inventory levels from the combined demand of multiple items. By knowing some basic item characteristics of representative items in a product class, the type of inventory policy being used, and the current aggregate inventory level, an inventory turnover curve can be constructed. This resulting turnover curve can be used to estimate inventory levels within 4.6%, on the average, of theoretically predicted ones.  相似文献   
110.
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