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   14505篇
  免费   355篇
  国内免费   1篇
财政金融   2391篇
工业经济   1067篇
计划管理   2593篇
经济学   3277篇
综合类   466篇
运输经济   85篇
旅游经济   146篇
贸易经济   1873篇
农业经济   828篇
经济概况   2071篇
邮电经济   64篇
  2022年   106篇
  2021年   191篇
  2020年   226篇
  2019年   233篇
  2018年   230篇
  2017年   324篇
  2016年   292篇
  2015年   218篇
  2014年   342篇
  2013年   1167篇
  2012年   611篇
  2011年   829篇
  2010年   688篇
  2009年   591篇
  2008年   542篇
  2007年   484篇
  2006年   514篇
  2005年   473篇
  2004年   282篇
  2003年   305篇
  2002年   249篇
  2001年   271篇
  2000年   244篇
  1999年   244篇
  1998年   212篇
  1997年   219篇
  1996年   191篇
  1995年   164篇
  1994年   172篇
  1993年   189篇
  1992年   199篇
  1991年   185篇
  1990年   190篇
  1989年   160篇
  1988年   151篇
  1987年   147篇
  1986年   168篇
  1985年   193篇
  1984年   188篇
  1983年   173篇
  1982年   159篇
  1981年   180篇
  1980年   162篇
  1979年   177篇
  1978年   144篇
  1977年   136篇
  1976年   124篇
  1975年   89篇
  1974年   97篇
  1973年   94篇
排序方式: 共有10000条查询结果,搜索用时 109 毫秒
71.
H. P. Gassmann 《Futures》1991,23(10):1019-1031
A review is made of the global status of information technology (IT) development and new opportunities identified for government IT policies. Despite operational problems, IT innovations continue apace. Poor human-computer interaction, user friendliness and lack of standardization are all key issues which must be addressed. Globalization trends, east-west politicomilitary changes and third world development, all have implications for government IT policies over the coming decade—and the right directions must be pursued now to derive real benefits from IT and move towards a true information economy.  相似文献   
72.
73.
74.
This paper employs the economics of shortage framework to examine post-Mao reforms in Chinese state-owned industry. Performance has been disappointing because reforms through 1985 failed to fundamentally alter economic agent behavior. The “soft” budget constraints at the enterprise and local government levels continue to generate “quantity” and “expansion” drives. The resultant inflationary pressures have necessitated administrative interventions and thwarted reform progress. The Maoist legacy of active participation by local governments in economic management is high-lighted as a major obstacle to the elimination of paternalism in state-enterprise relations.  相似文献   
75.
设计了一个烧结模糊控制系统,进而构建了一个基于模糊控制的自适应脉宽控制器,对煤气阀、换向阀开关时间进行控制;利用模糊控制器的模糊推理能力来实现煤气阀门开度在线调整,以达到优化控制的目的。运行结果表明,这种控制器与常规比值控制器相比可以取得较好的控制效果。  相似文献   
76.
Developing countries have been increasing their participation in the formal institutions and proceedings of the multilateral trading system. A prominent example is their more frequent involvement as defendants and plaintiffs in GATT/WTO trade disputes. This paper provides an initial economic appraisal of developing country performance in the GATT/WTO dispute settlement system. We measure the economic resolution of these disputes through trade liberalisation gains, and our results suggest that developing country plaintiffs have had more success under WTO disputes than was the case under the GATT. We also document evidence on potential determinants of this success: the capacity for plaintiffs to make credible retaliatory threats and the guilty determinations by GATT/WTO panels. Finally, there is also some evidence that developing countries have recognised the importance of retaliatory threats and have responded by changing their pattern of dispute initiation under the WTO to better take advantage of the instances in which they have sufficient leverage to threaten retaliation and induce compliance with GATT/WTO obligations.  相似文献   
77.
This article deals with the measurement and determination of entrepreneurship. It utilises the issue of the absence of the entrepreneur from neoclassical theory and uses the theory of portfolio management to establish a model connecting risk premium with the entrepreneurship premium. It shows that the non-systematic risk may be a satisfactory proxy of the level of entrepreneurial activity. The development of successful entrepreneurial activity proxy contributes towards the development of a theorisation of entrepreneurship and an assessment of its contribution to growth.  相似文献   
78.
The purpose of this research was to investigate the effects that user task load level has on the relationship between an individual's trust in and subsequent use of a system's automation. Military decision-makers trust and use information system automation to make many tactical judgments and decisions. In situations of information uncertainty (information warfare environments), decision-makers must remain aware of information reliability issues and temperate their use of system automation if necessary. An individual's task load may have an effect on his use of a system's automation in environments of information uncertainty.It was hypothesized that user task load will have a moderating effect on the positive relationship between system automation trust and use of system automation. Specifically, in situations of information uncertainty (low trust), high task load will have a negative effect on the relationship. To test this hypothesis, an experiment in a simulated command and control micro-world was conducted in which system automation trust and individual task load were manipulated. The findings from the experiment support the positive relationship between automation trust and automation use found in previous research and suggest that task load does have a negative effect on the positive relationship between automation trust and automation use. Experiment participant who incurred a higher task load exhibited an over-reliance on their automated information systems to assist them in their decision-making activities. Such an over-reliance can lead to vulnerabilities of deception and suggests the need for automated deception detection capabilities.  相似文献   
79.
80.
工作本位学习是基于从学校到工作岗位(school-to-work)的理念下提出来的,试图整合学习策略和工作实践,促进学习者的学习,以更好适应工作的需要。工作本位课程理论是在上述理念基础上开发出来的,对我国高职教育提供有益的启示。  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