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   14943篇
  免费   511篇
  国内免费   1篇
财政金融   2576篇
工业经济   990篇
计划管理   2609篇
经济学   3830篇
综合类   172篇
运输经济   140篇
旅游经济   187篇
贸易经济   2440篇
农业经济   624篇
经济概况   1817篇
邮电经济   70篇
  2023年   137篇
  2021年   155篇
  2020年   268篇
  2019年   341篇
  2018年   466篇
  2017年   580篇
  2016年   494篇
  2015年   281篇
  2014年   450篇
  2013年   1745篇
  2012年   532篇
  2011年   520篇
  2010年   491篇
  2009年   556篇
  2008年   434篇
  2007年   359篇
  2006年   315篇
  2005年   326篇
  2004年   261篇
  2003年   325篇
  2002年   247篇
  2001年   248篇
  2000年   242篇
  1999年   223篇
  1998年   212篇
  1997年   206篇
  1996年   202篇
  1995年   172篇
  1994年   183篇
  1993年   204篇
  1992年   213篇
  1991年   196篇
  1990年   200篇
  1989年   173篇
  1988年   159篇
  1987年   151篇
  1986年   173篇
  1985年   214篇
  1984年   207篇
  1983年   182篇
  1982年   176篇
  1981年   190篇
  1980年   169篇
  1979年   183篇
  1978年   147篇
  1977年   138篇
  1976年   128篇
  1975年   92篇
  1974年   103篇
  1973年   96篇
排序方式: 共有10000条查询结果,搜索用时 343 毫秒
1.
Using a three-phase approach that combines quantitative (pooled OLS, fixed effects and IV) with qualitative (semi-structured interviews) analyses, we find that in Italy, workplace unions are more likely to enhance training when they sign a firm-level agreement and when they can get access to external funds for financing. We also identify three channels: what we call a ‘maturation effect’, double-track communication and watch-dog function. We argue that these results are consistent with the idea that the impact of workplace unions on training depends on the empowerment of its collective voice within an institutional framework that does not fit either of the standard models provided by collective and liberal market economies.  相似文献   
2.

Person-centered approaches, such as latent profile analysis (LPA) and qualitative comparative analysis (QCA), have gained in popularity in organizational scholarship because of their ability to provide insight into how interrelations between a group of conditions can lead to a particular outcome. Despite the growing acceptance of person-centered approaches in social science research, traditional variable-centered approaches continue to prevail, although their dominance is increasingly questioned. This paper offers in-depth analysis of the current state of QCA and LPA from both a conceptual and a bibliometric perspective. This study thus aims to contextualize the role of person-centered methodologies in organizational scholarship. This aim is important, given the significance of exploring novel approaches to advance knowledge in organizational research. This paper provides scholars with quantifiable and readily comparable information on the use of these emerging but promising methods in organizational studies. Ultimately, this scientific contribution sheds light on the current and prospective applications of person-centered methods in research. Moreover, it offers scholars who are considering applying these methods objective analysis of the scientific production in this area thus far.

  相似文献   
3.
4.
Conventional wisdom holds that in markets with positive feedbacks being first to market can matter more than product quality. In this paper, we test that intuition within a generalized Pólya urn model. We find that if we assume constant feedbacks, in the long run, higher quality products dominate the market regardless of initial market shares, contradicting the common wisdom. However, when we allow for variable feedbacks, initial advantages persist almost indefinitely. Thus, the choice of whether to rush to market or focus on quality depends on market characteristics such as whether the positive feedbacks result from more consistent returns to scale or from more variable social influences.  相似文献   
5.
This study aimed to describe the distribution of injury mechanisms and to assess the impact of those mechanisms on the morbidity and mortality of trauma. All patients admitted to Puerto Rico Trauma Hospital (2002–2011) for road-traffic collisions (RTCs, 5,371), gunshot wounds (GSWs, 2,946), falls (2,319), pedestrian accidents (1,652), and stab wounds (SWs, 1,073) were selected. Gunshot victims were 1.19 (95%CI: 1.07–1.33) times as likely as road-traffic victims to have an ISS ≥25. Pedestrians were 1.76 (95%CI: 1.49–2.09) times more likely to have a GCS ≤8 than road-traffic victims were. The risk of dying was 2.64 (95%CI: 2.20–3.16) times higher for gunshot victims and 1.51 (95%CI: 1.23–1.86) times higher for pedestrians compared to patients who had had RTCs. Gunshot victims and pedestrians had the worst clinical outcomes. Accordingly, these patients should receive the most aggressive clinical management. Furthermore, it is imperative to develop public health campaigns on trauma prevention.  相似文献   
6.
7.
The French labor market is segmented between permanent and temporary workers. The second category has difficulty in getting an open-ended contract. This paper aims at depicting workers on short-term contracts and shows the consequences on their professional career are negative and significant. A large part of the wage gap between permanent and temporary workers remains unexplained by observable characteristics. They receive less on-the-job training and their likelihood of obtaining a stable job is lower than 30% after 1 year and a half. They have also a higher probability of being the adjustment variable in case of an economic negative shock. These different findings show the importance of using public policies to encourage transitions from fixed-term to permanent employment and reducing labor-market duality.  相似文献   
8.
Recent methodological developments provide a way to incorporate the temporal dimension when accounting for spatial effects in hedonic pricing. Weight matrices should decompose the spatial effects into two distinct components: bidirectional contemporaneous spatial connections; and unidirectional spatio-temporal effects from past transactions. Our iterative estimation approach explicitly analyses the role of time in price determination. The results show that both spatio-temporal components should be included in model specification; past transaction information stops contributing to price determination after eight months; and limited temporal friction is exhibited within this period. These findings highlight the decidedly non-linear temporal patterns of such information effects.  相似文献   
9.
Although disability sports have recently received positive attention, little concern has been directed towards them in youth research. In this article, we discuss the free-time sports in which youth with intellectual disabilities engage as a part of their leisure and their association with their peers. We maintain that every young person has a principal right to leisure and question what kinds of access youth with intellectual disabilities have to local sports communities in the Finnish context. Our empirical data consist of notes collected during sports training; interviews with young sports participants, their supervisors, and their parents; and online survey responses. Almost all sports are equally accessible to everyone; however, practical engagement in sports is not equally easy for everyone because long distances, lack of transportation, unsuitable sporting occasions and teams, or incapable coaches limit individuals’ participation possibilities. Furthermore, symbolic structures, such as neglectful attitudes, restrict the visibility of youth with intellectual disabilities in leisure sports. In many ways, supporting networks become significant when access to sport is under scrutiny. The most important enabling and restricting factors are families’ symbolic and material capital, as well as the unequal, poorly guided, and occasional leisure possibilities in different localities.  相似文献   
10.
Driven by their members' demands and the need to adopt more combative legal strategies in order to oppose the deterioration of working and employment conditions, British trade unions have developed in‐house legal expertise and supported many individual and multiple claims. This article investigates the variation in unions' legal practices and examines their organisational responses to law and the role of compliance professionals in the regulation of employment litigation. It provides a nuanced account of the influence of legal rationality on the framing of union strategies and shows that, under certain conditions, trade unions are able to build multi‐pronged tactics by using litigation as a complement to other forms of action.  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