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   1447篇
  免费   64篇
财政金融   224篇
工业经济   104篇
计划管理   292篇
经济学   322篇
综合类   9篇
运输经济   13篇
旅游经济   25篇
贸易经济   326篇
农业经济   50篇
经济概况   125篇
邮电经济   21篇
  2023年   22篇
  2022年   9篇
  2021年   24篇
  2020年   23篇
  2019年   39篇
  2018年   47篇
  2017年   48篇
  2016年   63篇
  2015年   27篇
  2014年   53篇
  2013年   173篇
  2012年   55篇
  2011年   64篇
  2010年   62篇
  2009年   64篇
  2008年   67篇
  2007年   44篇
  2006年   54篇
  2005年   50篇
  2004年   39篇
  2003年   41篇
  2002年   42篇
  2001年   20篇
  2000年   37篇
  1999年   32篇
  1998年   20篇
  1997年   19篇
  1996年   20篇
  1995年   20篇
  1994年   17篇
  1993年   18篇
  1992年   20篇
  1991年   15篇
  1990年   12篇
  1989年   10篇
  1988年   10篇
  1987年   7篇
  1986年   14篇
  1985年   6篇
  1984年   14篇
  1983年   11篇
  1982年   10篇
  1981年   6篇
  1980年   6篇
  1979年   11篇
  1978年   7篇
  1977年   6篇
  1976年   7篇
  1974年   8篇
  1972年   5篇
排序方式: 共有1511条查询结果,搜索用时 46 毫秒
61.
Since the invention of the European Patent System, national patent systems have continued to co-exist, although they did lose appeal. How have the different national systems been affected in view of their characteristics? In order to answer this question a constant-market-share (CMS) analysis is carried out. While on a theoretical level, the different elements adding to the appeal of each patent system are discussed, the CMS-analysis reveals the importance of country size in that the national systems of smaller countries lose.  相似文献   
62.
63.
64.
The market as a mind is the implicit premise in any discussion on whether the market is rational or not. Still, its implications, in terms of ontology and epistemology, are hardly understood. In particular, this paper defines the market's version of the mind-body problem and labels it as finance's “hard” problem. Its denial by modern finance causes this dominant paradigm to fail in dealing with reality in general and to produce incomplete investment knowledge in particular. Finally, as part of facing up to this problem, this paper offers a glimpse at a practical approach which may enrich investment research.  相似文献   
65.
We develop an agency model of organized crime accounting for the main trade‐offs involved in the introduction of an accomplice‐witness program. We characterize the optimal policy and identify its main determinants in a framework where public officials can be dishonest. Our predictions are tested by using data for Italy before and after the introduction of the 1991 accomplice‐witness program. As predicted by the model and the earlier antitrust literature, the program appears to have strengthened deterrence and enhanced prosecution. Moreover, consistent with a novel prediction of our theory, the evidence suggests that the program efficacy is affected by the judicial system efficiency.  相似文献   
66.
The authors hypothesize that the effectiveness of in-game advertising is influenced by two inborn traits, bisected hemispheric functioning and physiological arousal, that are at the core of human behavior. A 2 (preattentive processing type) × 2 (arousal level) between-subjects design was employed in both Experiment 1 (well-known brand placement) and Experiment 2 (lesser-known brand placement). The results from the two experiments reveal that people show better recognition memory for in-game ads when brand names are presented peripherally in the right visual field and brand images are embedded peripherally in the left visual field. In addition, people can remember more brand ads when they experience less arousal (Experiment 1). This effect, however, is attenuated when unfamiliar brands are placed in the game (Experiment 2). Implications are discussed for further investigation.  相似文献   
67.
A novel method is proposed of estimating market concentration for the census case in which firms are grouped into size classes and all that is known about the firms in each category is their number and aggregate size. The formula arises as a way of applying an alternative expression for the concentration ratio based upon the original and first moment size distributions of firms. The semi-parametric technique, which includes a method of interval as well as point estimation, is derived, applied and validated using actual and simulated data. It is anticipated that the estimator will be of use in competition analysis as well as in academic research.  相似文献   
68.
家族企业的品牌管理不太为外界所熟知,但是,家族企业由于其独特的“家庭要素”的背景,在核心理念、客户关联、一致性、员工融入和锐意进取等各个方面都有突出的表现,而这些要素也恰好是全球领先品牌的五个核心特征。  相似文献   
69.
Despite strong interest on the part of tobacco health practitioners, the effect of graphic warnings inserted on cigarette packs is unclear on several levels. First, the most effective themes for such messages have not been clearly identified by researchers. Second, no research has identified the ideal combination of self-efficacy and fear appeal warnings that should be inserted on cigarette packs, according to Protection Motivation Model principles. The exploratory study we conducted with French consumers to test the effectiveness of new graphic warnings proposed by the European Union in 2004 clearly demonstrates that visual messages, as opposed to text warnings, are more effective. This study also enabled us to identify the most effective themes of the European set: health warnings and social messages. Regarding future public health applications, if fear appeals are used, they need to be combined with self-efficacy and cessation support messages since they provoke avoidance reactions.  相似文献   
70.
One of the primary objectives of both adoption of IFRS and convergence between IFRS and U.S. GAAP is to increase financial statement comparability. Using a unique setting in Germany, we compare the effectiveness of these two approaches in achieving this desired outcome. Our empirical tests show that both adoption and convergence lead to an increase in comparability after the new enforcement regulation in 2005. However, difference‐in‐differences tests show that adoption does not lead to a significant incremental increase in comparability beyond convergence. The findings of this study should be of interest to regulators and standard setters as they assess alternative methods of aligning domestic standards with IFRS.  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