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   39326篇
  免费   650篇
财政金融   6695篇
工业经济   2373篇
计划管理   6477篇
经济学   9286篇
综合类   677篇
运输经济   190篇
旅游经济   351篇
贸易经济   8097篇
农业经济   1182篇
经济概况   3966篇
信息产业经济   46篇
邮电经济   636篇
  2023年   116篇
  2021年   155篇
  2020年   312篇
  2019年   488篇
  2018年   2723篇
  2017年   2501篇
  2016年   1698篇
  2015年   465篇
  2014年   673篇
  2013年   2535篇
  2012年   1226篇
  2011年   2676篇
  2010年   2448篇
  2009年   2244篇
  2008年   2172篇
  2007年   2420篇
  2006年   693篇
  2005年   921篇
  2004年   915篇
  2003年   1022篇
  2002年   681篇
  2001年   591篇
  2000年   523篇
  1999年   428篇
  1998年   497篇
  1997年   430篇
  1996年   446篇
  1995年   364篇
  1994年   375篇
  1993年   360篇
  1992年   368篇
  1991年   390篇
  1990年   351篇
  1989年   256篇
  1988年   265篇
  1987年   271篇
  1986年   267篇
  1985年   364篇
  1984年   369篇
  1983年   335篇
  1982年   288篇
  1981年   292篇
  1980年   286篇
  1979年   283篇
  1978年   229篇
  1977年   188篇
  1976年   187篇
  1975年   168篇
  1974年   152篇
  1973年   149篇
排序方式: 共有10000条查询结果,搜索用时 296 毫秒
31.
32.
33.
This paper is amongst the first to examine coopetition strategy for sustainable development at the network level. Companies who want to successfully implement complex innovative technologies that support sustainable development need to collaborate with other actors of the innovation ecosystem, including their competitors, so that they can develop standards, interoperable products, pool knowledge, and resources and bundle forces to compete against other technologies. Collaboration with competitors brings benefits, but also many risks. We investigated how firms cope with these risks when establishing an innovation ecosystem to implement a new technology in society. We conducted research in the Dutch smart grids sector and explored how these firms minimize inherent risks of coopetition. We found that system‐building actors in the Dutch smart grid field not only minimize inherent risks, but from the start of their collaboration they implement so‐called enablers to prevent these risks upfront.  相似文献   
34.
Quality & Quantity - Family firms (FFs) are the backbone of entrepreneurial fabric in many countries. Management of such businesses is complex because of their features: the overlap between...  相似文献   
35.
Several studies have shown a relationship between the stocks of migrants and country-level investment in the home country; however the mechanism through which this relationship operates is still unexplored. We use a field experiment in which participants who are recent immigrants send information about risky decisions to others in their social network in their home country. The results demonstrate how this information influences decisions in the home country. We find that the advice given by family members and decisions made by friends significantly affects an individual’s risky decision-making.  相似文献   
36.
37.
Institutions and the European Investment Bank are at the forefront of EU investment policy. Their role is expanding and it is now a widely-held position that an improvement in the economy will not eliminate the need for their intervention. The proposals for the 2021–2027 MFF launch more financial instruments and present ‘InvestEU’ as a larger more powerful version of the European Fund for Strategic Investments (EFSI). However, promotional banking is often misunderstood and so is the actual size of promotional banking in Europe in which InvestEU will operate.  相似文献   
38.
An axiomatic approach is applied to the problem of extracting a ranking of the alternatives from a pairwise comparison ratio matrix. The ordering induced by row geometric mean method is proved to be uniquely determined by three independent axioms, anonymity (independence of the labelling of alternatives), responsiveness (a kind of monotonicity property) and aggregation invariance, which requires the preservation of group consensus, that is, the pairwise ranking between two alternatives should remain unchanged if unanimous individual preferences are combined by geometric mean.  相似文献   
39.
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   
40.
The new regulatory framework in the digital sector in Europe is likely to fall short of expectations. A fragmented digital market with insuffi cient incentives for investment is the probable outcome. European regulators should abandon their approach in favour of a new and more flexible set of ideas discussed in 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