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   66983篇
  免费   2072篇
  国内免费   1073篇
财政金融   6068篇
工业经济   2794篇
计划管理   13173篇
经济学   12433篇
综合类   12504篇
运输经济   453篇
旅游经济   1108篇
贸易经济   8738篇
农业经济   4386篇
经济概况   8469篇
信息产业经济   2篇
  2024年   175篇
  2023年   722篇
  2022年   939篇
  2021年   1397篇
  2020年   1779篇
  2019年   1259篇
  2018年   1181篇
  2017年   1311篇
  2016年   1359篇
  2015年   1564篇
  2014年   3752篇
  2013年   4600篇
  2012年   5145篇
  2011年   6619篇
  2010年   4916篇
  2009年   4505篇
  2008年   5113篇
  2007年   4964篇
  2006年   4928篇
  2005年   3560篇
  2004年   2496篇
  2003年   2081篇
  2002年   1364篇
  2001年   1193篇
  2000年   796篇
  1999年   400篇
  1998年   216篇
  1997年   217篇
  1996年   165篇
  1995年   105篇
  1994年   97篇
  1993年   86篇
  1992年   59篇
  1991年   48篇
  1990年   47篇
  1989年   31篇
  1988年   26篇
  1987年   14篇
  1986年   12篇
  1985年   188篇
  1984年   206篇
  1983年   146篇
  1982年   103篇
  1981年   61篇
  1980年   73篇
  1979年   47篇
  1978年   37篇
  1977年   23篇
  1975年   1篇
  1973年   1篇
排序方式: 共有10000条查询结果,搜索用时 156 毫秒
121.
This paper centers on the interpretation attributed by organizational members to the information systems (IS) alignment concept. Its objective is to study IS alignment in professional organizations. Specifically, it reports on an interpretive study conducted in five Chilean organizations; four professional and one entrepreneurial, of which two are private and three are public. The theoretical background of our study is derived from three IS strategic alignment conceptualizations: managerial, emergent and critical. These concepts formed our theoretical framework that guided data collection and analysis. The study centers on the meanings organizational members assigned to IS strategic alignment, as well as their views on the barriers that hinder achieving this level of organizational integration. The analysis results are summarized in seven hermeneutic themes that point out the different connotations the organizations assigned to IS alignment. The significance of the findings are summarized in four insights that formulate theoretical and practical implications. These insights refer to: (1) the difficulties of achieving alignment for professional organizations, particularly public ones, (2) the limitations these organizations have in being agile, (3) the rationale for acquiring technology and determining IT skills, and (4) the imperative meaning that CIOs attribute to IS alignment. The paper concludes with a reflection on the limitations and relevance of the research.  相似文献   
122.
We study possible rankings of opportunity profiles. An opportunity profile is a list of opportunity sets, one for each agent in the society. We compare profiles on the basis of the notion of “equality of opportunities”. Our main results show the necessary and sufficient conditions for this comparison to be made using exclusively the information provided by two cardinal measures: the number of common alternatives in all sets of a given profile and the difference between the number of alternatives in the individual sets. We also show that, under additional axioms, we can combine these criteria only in a weighted procedure or in some lexicographic refinements of a weighted procedure.   相似文献   
123.
精馏过程的节能,对于减少能源消耗,降低生产成本和保护环境具有十分重要的意义.在精馏过程中可以采用最适宜回流比操作和最佳进料状态,使用中间冷凝器和中间再沸器,高效精馏、热泵精馏.合理安排多组分物料分离流程,直接利用过程热量及开发应用高效换热器等措施.本文从最佳回流比R的选择、进料温度及进料状态的确定等方面,详细的分析了在精馏塔的设计过程中,如何实现设计的优化问题,以实现节能降耗.  相似文献   
124.
In the present paper, we model the policy stance of the People's Bank of China (PBC) as a latent variable, and the discrete changes in the reserve requirement ratio, policy interest rates, and the scale of open market operations are taken as signals of movement of this latent variable. We run a discrete choice regression that relates these observed indicators of policy stance to major trends of macroeconomic and financial developments, which are represented by common factors extracted from a large number of variables. The predicted value of the estimated model can then be interpreted as the implicit policy stance of the PBC. In a second step, we estimate how much of the variation in the PBC' s implicit stance can be explained by measures of its policy objectives on inflation, growth and financial stability. We find that deviations of CPI inflation from an implicit target and deviations of broad money growth from the announced targets, but not output gaps, figure significantly in the PBC's policy changes.  相似文献   
125.
This paper, following McGoun's (1997) seminal article comparing the economy of financial securities to a hyperreal poker game, argues that finance and accounting researchers should take the “linguistic turn” that has rejuvenated theory and research in many, if not most, of the social science and humanities in recent decades. In general terms, this means following Ludwig Wittgenstein's language game paradigm rather than Karl Popper's scientific deductive hypothesis testing methodology. The paper illustrates this by drawing on some of Jean Baudrillard's' ideas, particularly his concept of hyperreality and his phases of the image theoretic.The paper presents a poststructuralist genealogical analysis of the radical ruptures and reformulation of the meaning attributed to the accounting sign of earnings over the feudal, counterfeit, production, and simulation eras. It concludes that, as with many other signs in contemporary society, the earnings sign no longer has any relationship with, nor does it any longer refer to, any real or intrinsic profit but instead floats ungrounded in today's financial economy.The paper recommends that researchers in finance and accounting adopt paradigms from literary theory, semiotics, linguistics, and semiology rather than continue to rely on economics-based theory, which has lost its power for explaining and predicting happenings in today's financial economy of self-referencing models and images.  相似文献   
126.
高职教育的生存和发展贵在坚持质量和特色,而提高质量和办出特色的先导是教育观念的与时俱进。因此,高职院校必须以市场对人才的需求为导向,以教学改革为核心,通过科学的、具有前瞻性的专业设置,合理的、特色鲜明的课程体系改革,适合高职特征的实训基地建设和规范的"双师型"教师队伍的培养为切入点,全面提升高职教育的社会声誉和办学效益。  相似文献   
127.
文章重点讨论铅锌冶炼企业的购并决策问题。购并决策是一个过程,它包括对企业自身特点的了解,目标企业的选择、决策等问题。  相似文献   
128.
Susan Newberry 《Abacus》2003,39(3):325-339
The underlying question raised in this article is: why is the accounting profession's conceptual framework (CF) so authoritative when it is conceptually incoherent? A supplementary question is how can ‘conceptually robust’ accounting standards be derived from an incoherent framework? This article draws on Page and Spira's (1999) contrasting framework metaphors to suggest that the appearance of conceptual robustness is more important than the reality, and illustrates the point with the International Accounting Standards Board's (IASB’s) progress report on its reporting performance project. Some inherent weaknesses in the move towards internationally enforceable financial regulations have been acknowledged, but this article suggests the IASB's project demonstrates two additional weaknesses: internal incoherence, and the potential for political ends to drive supposedly technical regulations.  相似文献   
129.
国资监督机构在深化国资国企过程中应集中调配产权权益,完善资产负债结构,优化资源配置,通过资本运营和良好的市场环境,充分发挥中央和地方政府的职能,在互为尊重的前提下,杜绝侵权行为的发生。  相似文献   
130.
above the certainty level while for additive uncertainty the price should be lower than the certainty level. This note gives an intuitive explanation for the result after first presenting a parsimonious review of the two models. We also discuss which, if either, of the two models is more realistic. Received December 14, 2001; revised version received July 16, 2002 Published online: April 30, 2003 We thank referees for helpful comments. Ciaran Driver would like to acknowledge the research facilities from ANU, Canberra for their help in writing this paper.  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