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   3090篇
  免费   66篇
  国内免费   1篇
财政金融   401篇
工业经济   185篇
计划管理   615篇
经济学   571篇
综合类   260篇
运输经济   37篇
旅游经济   33篇
贸易经济   363篇
农业经济   192篇
经济概况   493篇
邮电经济   7篇
  2024年   2篇
  2023年   30篇
  2022年   48篇
  2021年   79篇
  2020年   74篇
  2019年   43篇
  2018年   61篇
  2017年   70篇
  2016年   65篇
  2015年   82篇
  2014年   94篇
  2013年   184篇
  2012年   241篇
  2011年   379篇
  2010年   306篇
  2009年   203篇
  2008年   242篇
  2007年   208篇
  2006年   254篇
  2005年   209篇
  2004年   64篇
  2003年   46篇
  2002年   36篇
  2001年   38篇
  2000年   22篇
  1999年   17篇
  1998年   10篇
  1997年   8篇
  1996年   8篇
  1995年   2篇
  1994年   5篇
  1993年   3篇
  1992年   8篇
  1991年   2篇
  1990年   3篇
  1989年   1篇
  1988年   2篇
  1987年   2篇
  1986年   1篇
  1984年   2篇
  1983年   1篇
  1982年   2篇
排序方式: 共有3157条查询结果,搜索用时 31 毫秒
991.
近年我国智力外流现象严重,以致引起国内外众多媒体热逐以及学术界的关注,然而,研究中国不同教育层次移民对 FDI 流入影响的经验文献仍较缺乏.本文考察了中国在经合组织各国的移民网络是否促进了来源于该国家的 FDI 流入中国.实证结果显示:当地移民网络为中国 FDI 的流入提供了重要的推动力;其中,高等教育移民在 1%的水...  相似文献   
992.
作为新疆特殊地域条件下区域经济发展的重要组成部分——绿洲与交通干线,已成为新疆某一区域经济社会发展研究的主要领域。本文以奎屯至北屯铁路线为发展轴,依据沿线中心城市划分出三个经济区,对沿线绿洲经济社会发展现状、发展潜力和存在问题进行了分析,在此基础上提出了促进该区域经济发展的对策建议。  相似文献   
993.
Low birthweight outcomes are associated with considerable social and economic costs, and therefore the possible determinants of low birthweight are of great interest. One such determinant which has received considerable attention is maternal smoking. From an economic perspective this is in part due to the possibility that smoking habits can be influenced through policy conduct. It is widely believed that maternal smoking reduces birthweight; however, the crucial difficulty in estimating such effects is the unobserved heterogeneity among mothers and the fact that estimation of conditional mean effects seems potentially inappropriate. We provide a unified view on the estimation of relationships between prenatal smoking and birthweight outcomes with quantile regression approaches for panel data and emphasize their differences. This paper contributes to the literature in three ways: (i) we focus not only on one technique, but provide evidence from several approaches and highlight a variety of statistical issues; (ii) the performance of the methods are thoroughly tested in a simulated environment, and recommendations are given on their appropriate use; (iii) our results are based on a detailed data set, which includes many relevant control variables for socio-economic, wealth, and personal characteristics.  相似文献   
994.
We set out in this study to analyse the impact on the technological performance of firms arising from their vertical integration, along with their escalating commitment to capital investment. Our findings reveal a positive relationship between vertical integration and the technological performance of such firms. A positive correlation is also found to exist between vertical integration and escalating commitment to capital investment; in other words, a firm's rising commitment to its capital investment may well strengthen the positive effects of vertical integration on the technological performance of the firm. More importantly, the interactive effects on technological performance will tend to differ, largely dependent on the type of vertical integration. The findings of this study also indicate that vertical integration can effectively neutralise the threat to exit barriers resulting from a firm's escalating commitment to its prior investment.  相似文献   
995.
We develop a theoretical model, explore the relationship between temptation (both reflective and formative) and unethical intentions by treating monetary intelligence (MI) as a mediator, and examine the direct (temptation to unethical intentions) and indirect (temptation to MI to unethical intentions) paths simultaneously based on multiple-wave panel data collected from 340 part-time employees and university (business) students. The positive indirect path suggested that yielding to temptation (e.g., high cognitive impairment and lack of self-control) led to poor MI (low stewardship behavior, but high cognitive meaning) that, in turn, led to high unethical intentions (theft, corruption, and deception). Our counterintuitive negative direct path revealed that those who controlled their temptation had high unethical intentions. Due to the multiple faces of temptation (the suppression effect), maliciously controlled temptation (low cognitive impairment and high self control) led to deviant intentions. Subsequent multi-group analysis across gender (a moderator) reformulated the mystery of temptation: a negative direct path for males, but a positive indirect path for females. For males, the negative direct path generated a dark impact on unethical intentions; for females, the positive indirect path did not, but offered great implications for consumer behavior. Both falling “and” not falling into temptation led to unethical intentions which varied across gender. Our counterintuitive, novel, and original theoretical, empirical, and practical contributions may spark curiosity and add new vocabulary to the conversation regarding temptation, money attitudes, consumer psychology, and business ethics.  相似文献   
996.
目的对多糖类药物的提取与分离方法和效果进行分析探讨,为今后的药物分析工作提供可靠的参考依据。方法提取方法有溶剂提取法、酸提取法、碱提取法、超临界流体萃取法;分离方法包括超滤法、沉淀法、柱层析法以及色谱法。结果通过上述提取分离方法能够获得多糖成分。结论近几年多糖类药物的药理作用已经受到了高度的重视,使得多糖类药物的提取与分离技术也得到了良好的发展。  相似文献   
997.
This paper investigates the impacts of a borrower's reorganisation plan confirmation on its lending bank's shareholder wealth. Earlier empirical research is completely silent on this research area. Using data from a sample of Taiwanese reorganised firms, this paper shows that the market discriminates among lending banks by making inferences based on their exposure to their reorganised borrower; that is, the lead lending banks experience negative wealth effects, whereas the second lending banks experience positive effects. The results also show that wealth effects are negatively related to loan collateral and rates charged on the loans as well as on corporate leverage. In addition, the reliability and robustness of the model are demonstrated by the receiver operating characteristic curves.  相似文献   
998.
Globalization is a key factor in the success of business organizations today, impacting many aspects of management performance. Understanding the global business environment has therefore become a key objective in the teaching of international business on Executive MBA programs. Drawing on the theory of experiential learning, this study examines the relationship between program structure and learning activities of an international study visit (ISV) to China and the learning experience for Executive MBA students. The findings indicate that learning experience may be most effective where the structure of an ISV incorporates certain activities that promote experiential and deep-level learning. Educational implications are discussed.  相似文献   
999.
通过理论和案例剖析了产业转移过程中要素转移与聚集融合发展的机理和发展路径.认为:生产要素的转移与集聚本质是一个集成创新的过程;按照时间的演化顺序,要素转移与聚集融合的发展路径依次为要素的初步集聚、组织的中度集成和产业要素的高度融合三个连续的阶段.要素的初步集聚是因为系列外部事件冲击的结果,具有一定的偶然性;中度集成阶段是组织、制度、资源相互作用,自我强化回馈的过程,是市场推动的结果;高度集成阶段则是在中度集成的基础上,生产系统成功根植于当地的社会文化网络中,形成具有创新功能和一定竞争优势的区域创新系统.  相似文献   
1000.
我国企业粗放式发展,"九五"期间就提出了转型,但到"十二五"已近20年,成效不大,比较缺乏内在机制的深层次研究。对此,尝试地研究了粗放式发展的特征,为什么粗放式发展难以转型的内在机制。研究结果表明,粗放式发展的特征是固定资产投资偏离了企业创新投入的目标,企业创新投入效率直接受到了粗放式投资环境和企业固定资产投资的负向调节影响,削弱了企业创新投入的动机。这表现为无论是政府固定资产投资,还是企业固定资产投资,其调节作用都削弱了对企业R&D创新形成的竞争优势,呈现出显著的负相关。其政策启示是,企业在我国粗放式投资环境下,应保持企业固定投资与R&D投资的目标与战略的一致性,才能摆脱粗放式,取得竞争优势。  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