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   409篇
  免费   14篇
财政金融   54篇
工业经济   33篇
计划管理   89篇
经济学   79篇
综合类   1篇
运输经济   1篇
旅游经济   2篇
贸易经济   85篇
农业经济   18篇
经济概况   46篇
邮电经济   15篇
  2022年   2篇
  2020年   5篇
  2019年   5篇
  2018年   8篇
  2017年   13篇
  2016年   12篇
  2015年   11篇
  2014年   10篇
  2013年   52篇
  2012年   14篇
  2011年   17篇
  2010年   17篇
  2009年   16篇
  2008年   27篇
  2007年   21篇
  2006年   16篇
  2005年   16篇
  2004年   13篇
  2003年   16篇
  2002年   9篇
  2001年   6篇
  2000年   7篇
  1999年   9篇
  1998年   3篇
  1997年   8篇
  1996年   9篇
  1995年   6篇
  1994年   5篇
  1993年   8篇
  1992年   4篇
  1991年   2篇
  1990年   7篇
  1989年   2篇
  1988年   6篇
  1987年   5篇
  1985年   3篇
  1984年   2篇
  1983年   3篇
  1981年   2篇
  1980年   5篇
  1978年   2篇
  1977年   2篇
  1975年   3篇
  1971年   1篇
  1970年   2篇
  1969年   1篇
  1968年   1篇
  1967年   1篇
  1965年   1篇
  1959年   1篇
排序方式: 共有423条查询结果,搜索用时 44 毫秒
91.
While the German manufacturing industry is internationally renowned and often seen as the backbone of German economic development, it has encountered some obstacles in the past few years. These obstacles are related with the emergence of new competitors, the shifts of economic activity in Europe due to economic integration and the challenge of German unification. This paper analyzes the historical development of the German manufacturing industry. By discussing the problems of German manufacturing industry in a globalized world, conclusions for necessary reforms can be drawn.  相似文献   
92.
93.
We analyse the technical efficiency of dairy farms in Schleswig‐Holstein that took part in the European Farm Credit Programme over the period 1987 to 1994. One goal of this programme is to increase the productivity of farms. We test whether participants show higher technical efficiency. We utilise a stochastic frontier model that allows for heteroscedasticity and estimation of determinants of technical inefficiency. Statistical tests indicate dominance of this model over alternative specifications. On average, we observe a high level of technical efficiency between 1987–94, but participation in the programme has rather led to a slight decrease. Thus, the programme seems to have failed to increase the competitiveness of farms.  相似文献   
94.
Both globalisation and regionalisation have gained momentum in the last two decades in every part of the world, involving economies at all levels of development. The following article examines the major determinants affecting the competitive position of selected regional blocs and suggests some policy stances which promise to support both further regional integration and improved competitiveness at a global level.  相似文献   
95.
96.
97.
The ongoing digitalization in the training sector produces new demands on the media‐didactical competence of trainers. We conducted an online survey of 279 trainers in Germany to investigate the relationships among media‐didactical competence, media‐didactical self‐efficacy, attitudes toward the use of digital media and the actual use of digital media in training. Furthermore, we compared trainers who attended a course on digital media with trainers who did not attend such a course. The analysis of the theoretically expected correlations between the variables resulted in not all hypotheses being accepted. The analysis of the group differences showed that the trainers who attended a course on digital media had higher media‐didactical competence and media‐didactical self‐efficacy scores and used digital media more often in training. There was no significant difference in negative attitudes. The implications for the promotion of the media‐didactical competence of trainers are discussed.  相似文献   
98.
Treating grazing pressure as an undesirable output of livestock grazing in a directional distance function improves understanding of how economic behaviour affects the environment. Field survey data from 193 livestock grazing households combined with remotely sensed net primary productivity (NPP) data on the Qinghai–Tibetan–Plateau was used to develop a directional output‐orientation distance function. The average efficiency of livestock grazing households is 0.817 when incorporating grazing pressure as an undesirable output, which means that households can achieve 18.3% more output and decrease proportional grazing pressure holding all inputs fixed. The relative shadow price of undesirable grazing pressure to good output grazing revenue is estimated to be between 1.795 and 3.986. According to the Morishima elasticity of substitution between inputs, there is a significant complementary relationship between grassland, labour and capital.  相似文献   
99.
The European Council’s recent decision that Greece is ready to join EMU at the beginning of 2001 raises a number of questions. How was Greece able to comply with the convergence criteria? What are the costs and benefits of its accession from both the Greek and the present EMU members’ perspectives? Is the current process of economic reform in Greece sustainable?  相似文献   
100.
A rapid implementation of potentially more sustainable sector structures in newly industrializing countries (NICs) is of key importance to reach global sustainability. The conceptual basis for assessing such “leapfrogging” potentials is however still rather weakly developed. The present paper elaborates an encompassing conceptual framework drawing on the technological innovation systems literature and adding an explicit geographical focus that embeds an NIC's innovation system in its international context. From this, we derive six ideal-type leapfrogging trajectories. The framework is applied to the case of a potential transition to onsite wastewater treatment in China. Empirical evidence is based on 30 expert interviews with representatives from companies, universities, authorities and associations in China and Europe. Our results suggest that leapfrogging in the Chinese wastewater sector might develop in either an integrated “international innovation system” trajectory, where Chinese and international actors closely interact, or in an “international competition” trajectory, where Chinese actors endogenously build up technological leadership in strong competition to international actors. We conclude by outlining policy implications and by discussing future research priorities for leapfrogging and transition studies.  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