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   610篇
  免费   19篇
财政金融   90篇
工业经济   68篇
计划管理   125篇
经济学   138篇
综合类   10篇
运输经济   4篇
旅游经济   10篇
贸易经济   114篇
农业经济   14篇
经济概况   56篇
  2020年   9篇
  2019年   19篇
  2018年   12篇
  2017年   21篇
  2016年   17篇
  2015年   13篇
  2014年   14篇
  2013年   68篇
  2012年   15篇
  2011年   24篇
  2010年   15篇
  2009年   25篇
  2008年   16篇
  2007年   16篇
  2006年   14篇
  2005年   13篇
  2004年   15篇
  2003年   24篇
  2002年   13篇
  2001年   16篇
  2000年   8篇
  1999年   10篇
  1998年   11篇
  1997年   5篇
  1996年   13篇
  1995年   9篇
  1994年   7篇
  1993年   15篇
  1991年   10篇
  1990年   5篇
  1989年   4篇
  1988年   5篇
  1987年   7篇
  1986年   5篇
  1985年   9篇
  1984年   10篇
  1983年   4篇
  1982年   4篇
  1981年   10篇
  1979年   11篇
  1978年   5篇
  1977年   13篇
  1975年   7篇
  1974年   5篇
  1973年   4篇
  1972年   4篇
  1970年   4篇
  1968年   4篇
  1967年   4篇
  1966年   4篇
排序方式: 共有629条查询结果,搜索用时 370 毫秒
51.
I reconsider the implementation of efficient cost and quality efforts when health-care providers may refuse services to consumers, and introduce a mechanism that is a combination of prospective payment and cost reimbursement. Conditions are derived for the prospective payment level and the margin above cost reimbursement for the implementation of efficient efforts.  相似文献   
52.
Although a good deal of empirical research is available on the measurement of turkey body weight gain response to fat supplementation, none has attempted to study the economics of optimizing fat level in turkey diets. This study focuses on deriving the optimal fat level in turkey diets. The methodology used should also apply to any nonruminant species (swine and poultry).  相似文献   
53.
54.
55.
Targeted poverty investments and economic growth in China   总被引:1,自引:0,他引:1  
In the mid-1980s, the Chinese government launched its ambitious poor area development policy, which was centered around a series of grant, credit, and Food-for-Work programs. Ironically, for the remainder of the 1980s rural poverty remained at about 90 to 100 million, or approximately 10% of the rural population. The lack of progress cannot necessarily be blamed on ineffective poor area policies, since much of the agricultural economy was mired in a deep recession between the mid-1980s and the early 1990s. By the mid-1990s substantial additional poverty reduction had been achieved. Even in the late-1980s, farmers in many poor counties did better than the national average in terms of income growth. After accounting for the effects of macroeconomic elements, what factors can help explain the differences in performance among poor regions and between poor areas and rich ones? Can part of these differences be accounted for by poor area policies, in general, or by the way local and regional officials allocate their poor area investment funds, in particular?The overall objective of this paper is to analyze the effectiveness of Chinese poor area policy. Specifically, the paper seeks to meet three objectives. First, we want to understand the evolution of poor area policy since the mid-1980s, trying to deduce the true goals of central and regional poor area officials, as well as how these policies have been implemented in the provinces. Next, we want to understand the magnitude and scope of investment into poor areas, and examine if changes in these policies have affected the uses of the investment funds. Finally, we want to determine the effectiveness of the investment of poor area funds, analyzing which types of investments have generated growth, and which ones have not.  相似文献   
56.
Discoveries in the physical and biological sciences suggest that intelligence is widely distributed throughout the universe. Before long, either we will decide that these discoveries have pointed us towards a false conclusion, or we will obtain undeniable evidence of extraterrestrial life. After finding one extraterrestrial society, we are likely to discover others and, in this manner, become a part of the “Galactic Club”. Following the “slow track”, an initial encounter will lead to accelerated search efforts that will put us in touch, one by one, with additional societies. Following the “fast track”, our initial contact will be with an affiliate of the Galactic Club, and this society will give us instant access to other members. The physical constraints imposed by interstellar distances, coupled with our understanding of large social systems, suggest that the Galactic Club will be large, stable, slow-paced, and exert only loose control over its members. The two tracks have different implications for managing initial contact, protecting our security, knowledge transfer, handling culture change, and preserving our identity.  相似文献   
57.
58.
59.
In this article I claim that the Nobel Prize in Economics has not only set the economics discipline on a path‐dependent trajectory, but is itself an apotheosis of a development of what I would like to refer to as ‘the statistical turn in economics’. The case of Jan Tinbergen illustrates the argument and sketches the stages within the statistical turn in economics. The Nobel Prize in 1969 acknowledged this character of economics, and justified the continuation of this approach for the generation to come.  相似文献   
60.
Using a sample of Chinese mutual funds, we empirically assess how managerial heterogeneity affects mutual fund performance. We find that funds with higher manager fixed effects outperform those with lower manager fixed effects by 2% per year. We also note that fund performance improves after managers with higher fixed effects are hired. The results are consistent with the notion that manager fixed effects are associated with managerial innate ability. Finally, we find that investors pay attention to managerial attributes beyond the traditional performance measures, providing supporting evidence for the rational explanation of convex flow‐performance sensitivity in the literature.  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