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   5562篇
  免费   101篇
  国内免费   52篇
财政金融   474篇
工业经济   236篇
计划管理   736篇
经济学   1435篇
综合类   516篇
运输经济   53篇
旅游经济   314篇
贸易经济   991篇
农业经济   321篇
经济概况   639篇
  2024年   14篇
  2023年   162篇
  2022年   182篇
  2021年   266篇
  2020年   330篇
  2019年   176篇
  2018年   183篇
  2017年   226篇
  2016年   226篇
  2015年   179篇
  2014年   385篇
  2013年   410篇
  2012年   327篇
  2011年   477篇
  2010年   332篇
  2009年   349篇
  2008年   334篇
  2007年   311篇
  2006年   269篇
  2005年   169篇
  2004年   102篇
  2003年   87篇
  2002年   52篇
  2001年   46篇
  2000年   28篇
  1999年   21篇
  1998年   3篇
  1997年   8篇
  1996年   15篇
  1995年   5篇
  1994年   6篇
  1993年   3篇
  1992年   4篇
  1991年   1篇
  1990年   2篇
  1985年   5篇
  1984年   8篇
  1983年   5篇
  1982年   4篇
  1981年   1篇
  1980年   1篇
  1979年   1篇
排序方式: 共有5715条查询结果,搜索用时 15 毫秒
991.
We propose generalized versions of strong equity and Pigou–Dalton transfer principle. We study the existence and the real-valued representation of social welfare relations satisfying these two generalized equity principles. Our results characterize the restrictions on one period utility domains for the equitable social welfare relations (i) to exist; and (ii) to admit real-valued representations.  相似文献   
992.
The study explores the association of socioeconomic, demographic, and health-related variables at the regional level with COVID-19 related cases and deaths in Germany during the so-called first wave through mid-June 2020. Multivariate spatial models include the 401 counties in Germany to account for regional interrelations and possible spillover effects. The case and death numbers are, for example, significantly positively associated with early cases from the beginning of the epidemic, the average age, the population density and the share of people employed in elderly care. By contrast, they are significantly negatively associated with the share of schoolchildren and children in day care as well as physician density. In addition, significant spillover effects on the case numbers of neighbouring regions were identified for certain variables, with a different sign than the overall effects, giving rise to further future analyses of the regional mechanisms of action of COVID-19 infection. The results complement the knowledge about COVID-19 infection beyond the clinical risk factors discussed so far by a socio-economic perspective at the ecological level.  相似文献   
993.
This paper examines the aggregation of preferences with a finitely additive measure space of agents. We consider three types of non-dictatorship axioms: non-dictatorship, coalitional non-dictatorship, and atomic non-dictatorship. First, we show that the existence of an atom is a necessary and sufficient condition for the existence of a social welfare function that satisfies weak Pareto, independence of irrelevant alternatives, and coalitional non-dictatorship. Second, we simultaneously impose non-dictatorship and coalitional non-dictatorship, and specify a necessary and sufficient condition for the finitely additive measure that guarantees the compatibility among the axioms. Third, we impose all non-dictatorship axioms and show that the corresponding measure is extremely restricted.  相似文献   
994.
军民融合新创企业是推动我国国防建设和社会经济融合发展的重要力量,军民融合社会关系网络具有丰富的异质性资源,可以有效促进军民融合新创企业成长。借鉴社会网络理论,构建以关系深度、关系广度、关系高度为代表的军民融合社会关系网络、耦合共生与军民融合新创企业成长理论模型,通过对收集的304份军民融合新创企业问卷数据进行实证分析,结果发现:军民融合社会关系网络对军民融合新创企业成长具有正向影响;耦合共生在军民融合社会关系网络与军民融合新创企业成长间发挥中介作用;创业导向显著调节耦合共生与军民融合新创企业成长的关系。  相似文献   
995.
微时代是以微博、微信等社交平台为代表的新时代。高职院校教育主体与受教育主体面对社交平台的新型话语体系,展现出不同的话语特征。教育主体只有进行话语权的体系建构,才能帮助学生形成正确认知、树立正确的价值观念,真正培养具有坚定信念和国际视野的高端技术技能人才。  相似文献   
996.
In this empirical study, a five-stage methodology is used to examine the efficiency of 45 worldwide known airline companies from the financial, operation and marketing perspectives. Initially, the superefficient data envelopment model is run with inputs and outputs that are selected based on the literature review. However, because 21 out of 45 airline companies are found to be efficient based on this analysis, a stepwise regression-based mechanism is applied to four reduced models – one for each output variable – for better discrimination. The outputs are, namely, net profit margin (financial output), passengers carried, on-time departure performance (operational outputs), and customer satisfaction (marketing output). In this way, the significant input variables are found for each reduced model. In the third stage, in order to provide even more discrimination, social network-based eigenvector centrality values are used as the weights of the superefficiency scores, and the strengths and weaknesses of efficient airlines for each output are specified in terms of their related significant inputs. The results show that, when net profit margin is taken as an output, Vietnam Airlines has the top weighted superefficiency value and excels in terms of available seat kilometers and liquidity, but it should improve its debt level. Although Norwegian Airlines has the highest efficiency with respect to debt level, it is not the best role model because its eigenvector centrality value is relatively low. However, Norwegian airlines also has the highest weighted superefficiency and acts as a role model in terms of on-time departures with respect to this output. Its main strength is liquidity, and it has no significant weaknesses. On the other hand, in terms of overall satisfaction and passengers carried, Vietnam Airlines and Thai Airways are the leaders, respectively. Vietnam Airlines is the only superefficient company with respect to overall satisfaction, while the basic strengths of Thai Airways in terms of passengers carried are its employee and fleet, and it has no significant weakness. A final aggregation of the results is made by making pairwise comparisons of the relative importance of four outputs for 7 experts selected from different departments of airline companies. According to the results, Net Profit Margin has the highest priority, followed by On-time Departure and Overall Customer Satisfaction, while passengers carried has the lowest importance. Based on these relative priorities, it can be said that Vietnam Airlines can be accepted as the top performing airline company, followed by Norwegian Airlines.  相似文献   
997.
科技成果转化政策是强化科技与经济联系,完善创新体系的重要手段,是推动创新驱动、实现高质量发展的关键。论文选取1996—2017年中国中央政府及各部委所发布的85篇与科技成果转化相关的政策文本,采用内容分析法对其演进趋势及内在规律分析,得出政策制定部门参与水平上升、政策工具搭配组合日益多元、重视提升政策客体转化积极性的结论,并对未来政策发展方向提供思路。  相似文献   
998.
Literature shows that female (male) managers are more likely to adopt a transformational (transactional) leadership style, as well as make greater (lesser) use of information for decision-making. We draw on this research to investigate whether gender is related to a manager's use of management control systems (MCS) and performance measures. We surveyed the head of school of all schools across all Australian public universities. Our results indicate that females use MCS in an interactive manner to a greater extent than their male counterparts and make greater use of non-financial performance measures. We conclude with contributions to theory and practice.  相似文献   
999.
ABSTRACT

The use of Social Impact Bonds (SIBs), which introduces the potential for investor profit in public service provision, has been widely discussed. Some argue that SIBs might promote government transparency because outcome data collection and evaluation are part of contractual terms. On the other hand, some argue that SIBs might hinder government transparency because more contractual parties might lead to more uncertain data ownership and because the profit motive transforms information into a competitive advantage. This paper looks at SIBs in five countries, examining how transparency differed between SIB and non-SIB financed programmes at the same social service provider. On the positive side, SIBs led to more and longer collection of outcome data and the publication of evaluations. On the negative side, it was found that SIBs tend to generate significant obstacles to the release of data to academic researchers and that sponsored evaluations do not measure impacts.  相似文献   
1000.
Among the majority of research on individual factors leading to coronavirus mortality, age has been identified as a dominant factor. Health and other individual factors including gender, comorbidity, ethnicity and obesity have also been identified by other studies. In contrast, we examine the role of economic structural factors on COVID-19 mortality rates. Particularly, focusing on a densely populated region of France, we document evidence that higher economic “precariousness indicators” such as unemployment and poverty rates, lack of formal education and housing are important factors in determining COVID-19 mortality rates. Our study will help inform policy makers regarding the role of economic factors in managing pandemics.  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