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   2517篇
  免费   255篇
  国内免费   30篇
财政金融   191篇
工业经济   158篇
计划管理   844篇
经济学   388篇
综合类   297篇
运输经济   22篇
旅游经济   25篇
贸易经济   409篇
农业经济   107篇
经济概况   361篇
  2024年   23篇
  2023年   58篇
  2022年   74篇
  2021年   99篇
  2020年   118篇
  2019年   83篇
  2018年   66篇
  2017年   65篇
  2016年   67篇
  2015年   129篇
  2014年   207篇
  2013年   289篇
  2012年   210篇
  2011年   274篇
  2010年   211篇
  2009年   125篇
  2008年   142篇
  2007年   110篇
  2006年   120篇
  2005年   84篇
  2004年   46篇
  2003年   45篇
  2002年   31篇
  2001年   42篇
  2000年   36篇
  1999年   15篇
  1998年   5篇
  1997年   10篇
  1996年   3篇
  1995年   3篇
  1994年   5篇
  1992年   1篇
  1991年   2篇
  1990年   1篇
  1986年   1篇
  1985年   1篇
  1983年   1篇
排序方式: 共有2802条查询结果,搜索用时 520 毫秒
1.
This study investigates how political regimes affect health conditions such as infant and child mortality rates and life expectancy using data from 180 countries observed between 1960 and 2013. Panel quantile regression is used to examine the effects at different intervals throughout the distribution of health outcomes. The estimation results indicate that democracy has significant positive effects on health outcomes and that its impacts are greater when health outcomes are worse. These results are robust to different democracy and health indices. The effects of different types of democracies and dictatorships are also considered, that is parliamentary, mixed (semi-presidential) and presidential democracies, and civilian, military and royal dictatorships. The parliamentary form of democracy has the largest positive impact on health outcomes at the worst quantile of health outcomes, although the difference in the impacts of the three types of democracies is not necessarily large. Furthermore, all types of dictatorships have a negative impact on health outcomes, with military dictatorship having the worst outcome when health outcomes are worse. Finally, the effects of democratization on health outcomes are significantly positive when the health outcomes are worse.  相似文献   
2.
Can older managers overcome stereotypes relating age to low competence? We integrate the literature on age and cognitive ability with research on innovation to explore whether—and if so, when—employees' age harms performance and promotability appraisals made by their supervisors. Multisource, time‐lag data from 305 project managers indicate that the negative stereotypes can be explained through decreased innovative behavior. However, older employees are not always seen as poorer performers with less potential to be promoted due to their reduced innovative behavior. Rather, interdepartmental collaboration moderates these effects. Specifically, older employees with low interdepartmental collaboration are less innovative and receive worse performance and promotability appraisals than younger employees, but the “age handicap” vanishes when older employees collaborate with members of other departments. Organizations should foster formal or informal collaboration among units to prevent negative consequences of an aging workforce.  相似文献   
3.
This paper constructs alternative balanced scorecards based on high‐performance work system (HPWS) and employment relations system (ERS) models. The models are depicted and compared in diagrams and used as framework skeletons for building separate HPWS and ERS scorecards, intended to provide a detailed data picture of the operational health and performance of an organization's employment/HR system and its operations, processes, and inputs/outputs. The scorecards are filled in with nationally representative data from 2,000+ U.S. workplaces using more than 50 employment/HR indicators, as reported by separate panels of managers and employees. The indicators for each workplace are aggregated into an overall HR/employment system score, ranked from low‐to‐high, and graphed as frequency distributions. These distributions provide a unique snapshot picture of the mean and dispersion of the state of employment relations and HR system performance for companies across the United State. They also reveal that “models matter” since the HPWS and ERS scorecards provide distinctly different evaluation assessments.  相似文献   
4.
Drone food delivery services play a significant role in protecting the environment, because the services are operated by batteries that can be charged with electricity. Therefore, this study tried to examine a green image in the context of drone food delivery services. More specifically, this study proposed that a green image of drone food delivery services plays an important role in the formation of attitude toward using the services. In addition, it was hypothesized that the attitude has a positive influence on behavioral intentions including intentions to use, word‐of‐mouth intentions, and willingness to pay more. Lastly, the moderating role of gender and age was proposed during the theory‐building process. A theoretical model, which included 12 hypotheses, was developed and tested using a total of 427 samples collected in Korea. The data analysis results showed that a green image of drone food delivery services has a positive influence on attitude toward using the services, which in turn positively affects three subdimensions of behavioral intentions. Furthermore, gender and age played partly as a moderator. The current paper was the first to study the green image of drone food delivery services, so the findings of this study mean a lot to the theoretical aspect.  相似文献   
5.
The paper discusses the necessity and objective of digital library system, and analyzes the current situation of the high education institute digital libraries in China as well as some potential problems. Development plan is proposed for the digital library system for universities.  相似文献   
6.
In rational, efficiently functioning and complete markets, returns on derivative and underlying securities should be perfectly contemporaneously correlated. Due to market imperfections, one of these markets may reflect information faster. The use of high-frequency data and the choice for a small unit time interval to measure these lead-lag relations comes at the cost of some or many missing observations, causing traditional estimators to either under- or overestimate covariances and correlations. We use a new estimator to estimate lead-lag relationships between the cash AEX index, options and futures. We find that futures returns lead both options and cash index returns by approximately 10 minutes. The relationship between options and the cash market is not completely unidirectional.  相似文献   
7.
人文教育在高师教育体系中具有重要意义,人文教育可以塑造高师生的完美人格,实现教育的可持续发展.高师院校要实施有效的人文教育,就必须树立正确的教育理念,加强教师队伍建设,提高教师素质,增设人文课程,为高师生营造良好的人文环境.  相似文献   
8.
我国劳动力对经济发展而言,其生产率高于资本,因而经济发展对劳动力就业的促进作用逐渐减弱(经济增长的就业弹性逐渐变小)。据测算,我国2013年以前劳动力就业压力很大,2015年以后劳动力又会供不应求。所以,我国未来经济发展中,2014年前后应采用不同的产业结构调整策略来充分满足劳动力就业的要求。  相似文献   
9.
试论新时期大学生素质教育   总被引:3,自引:0,他引:3  
目前,高等教育中“偏重知识传授,忽视能力和心理素质培养,影响了学生全面素质提高”的现象不同程度地造成了当前大学生在知识结构方面存在的问题,其突出的表现是:知识面狭窄,偏重专业知识,忽视人文、社会科学、经济、管理等学科,知识体系内部缺乏互补效应。加强和改进大学生素质教育,要遵循大学生素质教育规律和大学生成长成才规律,牢固树立“学校教育,育人为本,德智体美,德育为先”的思想,培养学生健全的人格和良好的心理素质。  相似文献   
10.
发达国家科技政策导向及其启示   总被引:3,自引:0,他引:3  
当今世界,科技政策已成为许多国家尤其是美、日、欧等发达国家全力打造科技强国的基本的公共政策。文章从国家战略引导产业发展、国家政策促进产业发展、全力追求知识与技术创新、注重培养和吸纳优秀人才等4个方面对此进行了探析。  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