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   4299篇
  免费   1227篇
财政金融   788篇
工业经济   394篇
计划管理   1096篇
经济学   1023篇
综合类   4篇
运输经济   113篇
旅游经济   52篇
贸易经济   1273篇
农业经济   282篇
经济概况   497篇
邮电经济   4篇
  2023年   1篇
  2022年   3篇
  2021年   82篇
  2020年   171篇
  2019年   497篇
  2018年   243篇
  2017年   390篇
  2016年   371篇
  2015年   388篇
  2014年   390篇
  2013年   566篇
  2012年   394篇
  2011年   353篇
  2010年   312篇
  2009年   205篇
  2008年   222篇
  2007年   170篇
  2006年   157篇
  2005年   129篇
  2004年   111篇
  2003年   98篇
  2002年   94篇
  2001年   81篇
  2000年   56篇
  1999年   12篇
  1998年   6篇
  1997年   3篇
  1996年   1篇
  1995年   4篇
  1994年   1篇
  1991年   2篇
  1989年   1篇
  1988年   1篇
  1987年   4篇
  1986年   1篇
  1985年   1篇
  1977年   1篇
  1975年   1篇
  1972年   1篇
  1971年   2篇
排序方式: 共有5526条查询结果,搜索用时 15 毫秒
111.
Throughout history, healthcare, along with diet, has been an essential component of life and a country's welfare. In particular, a country's hospital system is a key indicator for analysing the level of welfare achieved by health coverage. From an economic history perspective, the study of hospital systems is relevant since they stem from public and private investment and produce positive externalities by creating employment and stimulating other economic sectors such as construction and health. Spain provides a significant case study for determining the factors of backwardness in the construction of a modern hospital system in a country on the European periphery. Moreover, it also helps us understand how, despite initial obstacles, this system had attained a significant degree of quality by the end of the twentieth century, as confirmed by its current international hospital rankings and even by the phenomenon of health tourism. The study analyses the creation of the Spanish hospital system during Franco's dictatorship and the transition to democracy. It reveals how the maintenance of a regressive tax system, the use of health policy as political propaganda, and disputes within the political elite of the dictatorship led to an inadequate and fragmented public hospital system, which had to collaborate with the private hospital system, was full of financial holes and tainted by corruption, and remained at the service of privileged groups.  相似文献   
112.
This paper considers the identification of social interaction effects in the context of multivariate choices. First, we generalize the theoretical social interaction model to allow individuals to make interdependent choices in different activities. Based on the theoretical model, we propose a simultaneous equation network model and discuss the identification of social interaction effects in the econometric model. We also provide an empirical example to show the empirical salience of this model. Using the Add Health data, we find that a student's academic performance is not only affected by academic performance of his peers but also affected by screen‐related activities of his peers.  相似文献   
113.
This study investigates whether and how the accounting ratios of peer firms within the same industry (the industry peers) or firms within the industry of their customers (the downstream peers) help improve the predictability of sample firm financial distress. We document that the Z‐score factors of the companies with high correlation in stock returns help predict financial distress. The results show that accounting‐based ratios of the industry peers and the downstream peers enhance the accuracy of early warnings of financial distress, especially when prior returns of peer firms are highly correlated with the sample firm.  相似文献   
114.
The development of a fast and reliable Internet, new technologies online payment systems, and changes in work structure that enable and demand flexible working patterns have driven a move to a new form of Internet‐enabled labour exchange called crowdsourcing. Evidence from an in‐depth qualitative study is presented, focusing on selected users' interactions and experiences of working on two UK‐based crowdsourcing platforms. The paper shows that workers engaged in this form of labour exchange need to deploy existing employability skills and networks to effectively meet the challenges, and take advantage of the opportunities, that crowdsourcing presents. Individual factors and circumstances emerge as paramount for workers' continued engagement in this form of employment. Using selected components from an employability framework, the findings suggest that crowdsourcing can offer new pathways to practising skills and enhancing employability for some workers.  相似文献   
115.
This article examines how employees interpret the use of various social media and web 2.0 technologies by managers of an organisation during a merger process. The article explores the way in which managers use technology to give sense to the merger process, the corresponding sensemaking of employees and also how employees make sense of the use of technology itself. The findings show that new media enables the sharing of emotional sense about organisational processes between managers and employees and places employees with different levels of involvement with the process and at different points in the organisational hierarchy on equal footing. In spite of this, employees view the use of technology negatively and feel mastered by the technology itself. In discussing these unintended consequences of the use of this technology, the article further discusses the paradoxes that emerge from using new technology to give sense during organisational change.  相似文献   
116.
R&D collaboration facilitates the pooling of complementary skills, learning from the partner as well as the sharing of risks and costs. Research therefore stresses the positive relationship between collaborative R&D and innovation performance. Fewer studies address the potential drawbacks of collaborative R&D. Collaborative R&D comes at the cost of coordination and monitoring, requires knowledge disclosure, and involves the risk of opportunistic behavior by the partners. Thus, while for lower collaboration intensities the net gains can be high, costs may start to outweigh benefits if firms perform a higher share of their innovation projects collaboratively. For a sample of 2735 firms located in Germany and active in a broad range of manufacturing and service sectors, this study finds that increasing the share of collaborative R&D projects in total R&D projects is associated with a higher probability of product innovation and with a higher market success of new products. While this confirms previous findings on the gains for innovation performance, the results also show that collaboration has decreasing and even negative returns on product innovation if its intensity increases above a certain threshold. Thus, the relationship between collaboration intensity and innovation follows an inverted‐U shape and, on average, costs start to outweigh benefits if a firm pursues more than about two‐thirds of its R&D projects in collaboration. This result is robust to conditioning market success to the introduction of new products and to accounting for the selection into collaborating. This threshold is, however, contingent on firm characteristics. Smaller and younger as well as resource‐constrained firms benefit from relatively higher collaboration intensities. For firms with higher collaboration complexities in terms of different partners and different stages of the R&D process at which collaboration takes place, returns start to decrease already at lower collaboration intensities.  相似文献   
117.
New Keynesian model in which households have Epstein–Zin preferences with time‐varying risk aversion and the central bank has a time‐varying inflation target can match the dynamics of nominal bond prices in the U.S. economy well. The model generates a large steady‐state term spread and its fitting errors for bond yields are comparable to those obtained from a nonstructural three‐factor model, and one‐third smaller than in models with a constant inflation target or risk aversion. Including data on interest rates has large effects on variance decompositions, making investment technology shocks much less important than found in other recent papers.  相似文献   
118.
We empirically analyze the impact of product market competition on the responsiveness of inflation to macroeconomic imbalances. If competition is high the response of inflation to lagged inflation, unemployment and import prices is reduced, while inflation is more responsive to changes in productivity growth in countries in which competition is above the OECD average. Given the (‘good luck’) macroeconomic trajectories of the 1990s–2000s, the structural reforms that made goods markets more competitive improved the ability of OECD economies to smooth (dis)inflationary shocks, while changes in the monetary policy framework had a modest role in taming inflation during the Great Moderation.  相似文献   
119.
120.
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