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   189篇
  免费   6篇
财政金融   42篇
工业经济   10篇
计划管理   27篇
经济学   71篇
贸易经济   25篇
经济概况   20篇
  2022年   2篇
  2021年   2篇
  2020年   4篇
  2019年   4篇
  2018年   5篇
  2017年   3篇
  2016年   4篇
  2015年   3篇
  2014年   10篇
  2013年   17篇
  2012年   6篇
  2011年   5篇
  2010年   6篇
  2009年   9篇
  2008年   7篇
  2007年   4篇
  2006年   3篇
  2005年   5篇
  2004年   4篇
  2003年   1篇
  2002年   2篇
  2001年   3篇
  2000年   3篇
  1999年   5篇
  1998年   1篇
  1997年   5篇
  1996年   3篇
  1995年   2篇
  1994年   4篇
  1993年   1篇
  1992年   2篇
  1991年   1篇
  1988年   1篇
  1986年   1篇
  1985年   5篇
  1984年   4篇
  1983年   3篇
  1982年   2篇
  1981年   5篇
  1980年   6篇
  1979年   12篇
  1978年   4篇
  1977年   5篇
  1975年   1篇
  1973年   1篇
  1970年   1篇
  1968年   2篇
  1958年   2篇
  1914年   1篇
  1912年   1篇
排序方式: 共有195条查询结果,搜索用时 15 毫秒
91.
The analysis of large research production, such as universities, towns, cities or even countries, can be performed in several ways. These various approaches can range from the experts′ feeling to a more precise analysis of co-authors′ productivity. The various results obtained introduce the concept of ‘virtual research universes’ where the global perception of the production hides the sharp reality of objectives and subjects. The ability to apply the various methodologies and tools to make such analysis can reduce misunderstanding and misleading positions, especially in funding, planning and project evaluation. This paper takes as an example the production of physics laboratories in Marseille (from the INSPEC databae), and shows how the various levels of analysis can move from virtual to real research universes, thus helping the experts in their decision process.  相似文献   
92.
Hybrid Cat Bonds     
Natural catastrophes attract regularly the media attention and have become a source of public concern. From a financial viewpoint, they represent idiosyncratic risks, diversifiable at the world level. But for various reasons, reinsurance markets are unable to cope with this risk completely. Insurance-linked securities, such as catastrophe (cat) bonds, have been issued to complete the international risk transfer process, but their development is disappointing so far. This article argues that downside risk aversion and ambiguity aversion explain their limited success. Hybrid cat bonds, combining the transfer of cat risk with protection against a stock market crash, are proposed to complete the market. The article shows that replacing simple cat bonds with hybrid cat bonds would lead to an increase in market volume.  相似文献   
93.
94.
We develop a theory for the market impact of large trading orders, which we call metaorders because they are typically split into small pieces and executed incrementally. Market impact is empirically observed to be a concave function of metaorder size, i.e. the impact per share of large metaorders is smaller than that of small metaorders. We formulate a stylized model of an algorithmic execution service and derive a fair pricing condition, which says that the average transaction price of the metaorder is equal to the price after trading is completed. We show that at equilibrium the distribution of trading volume adjusts to reflect information, and dictates the shape of the impact function. The resulting theory makes empirically testable predictions for the functional form of both the temporary and permanent components of market impact. Based on the commonly observed asymptotic distribution for the volume of large trades, it says that market impact should increase asymptotically roughly as the square root of metaorder size, with average permanent impact relaxing to about two-thirds of peak impact.  相似文献   
95.
Finding proper policy instruments to promote productivity growth features prominently in the Europe 2020 strategy and is central in many national as well as European policy debates. In view of the increased mobility of high-skilled workers in Europe, ongoing globalization and increased interregional and international co-operation, location patterns of innovative activity may be subject to drastic changes. A proper understanding of location patterns of innovative outputs can enhance the effectiveness and efficiency of national and European placed-based innovation policies. Building on the literature on the knowledge production function, the aim of this article is to explain the observed differences in the production of innovative outputs across European regions. Our main research question is whether geographical proximity and social capital are important vehicles of knowledge transmission in Europe. Several other variables are used to control for structural differences across European regions. We find support for the hypothesis that both social capital and geographical proximity are important factors in explaining the observed differences in the production of innovative output across European regions.  相似文献   
96.
This study uses the British National Child Development Study to examine the effect of educational attainment on social capital at the individual level. Social trust and membership of voluntary groups are considered as two basic indicators of social capital. We employ the IV analysis and nonparametric bound analysis to tackle the problem of education endogeneity. Both the approaches reveal that the OLS estimator of the educational effect suffers from an upward bias in the study of group membership. We do not observe any significant bias in the educational effect on social trust. Our empirical findings indicate that education has a positive influence in promoting social trust and membership of voluntary groups.  相似文献   
97.
98.
Most global energy models are developed by institutes from developed countries, focusing primarily on issues that are important in industrialized countries. Evaluation of the results for Asia of the IPCC/SRES models shows that broad concepts of energy and development, the energy ladder and the environmental Kuznets curve, can be observed in the results of the models. However, improvements can be made in modeling the issues that underlie these concepts, like traditional fuels, electrification, economic structural change, income distribution, and informal economies. Given the rapidly growing importance of energy trajectories of developing countries for global sustainability, the challenge for the future is to develop energy models that include all these aspects of energy and development.  相似文献   
99.
100.
Standard costing, conceived in the first two decades of the twentieth century in the United States, became widespread in American literature and enterprises between the two World Wars but was not introduced at Saint-Gobain until around 1960. This article investigates the circumstances behind the forty-year period separating the availability of the technique and its application in a significant French company. The time lag required by the French accounting profession to adopt the technique is put forward as the primary, though not the only, cause of this delay.  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