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   191篇
  免费   4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 0 毫秒
101.
The contrast between the evolution over the last decades of the European Union (EU) and the US unemployment rates, especially for the low-skilled, is well known. A consensus view is that these different outcomes can be explained by the interactions between common shocks and specific institutional setups. In this paper, we emphasize the interactions between technological changes and wages rigidities. We construct a fully calibrated general equilibrium model with two types of jobs and two types of workers, and with search unemployment. Our simulations show that with wage rigidities, technological changes suffice to generate a continuous rise in the low-skilled unemployment rate and an almost unchanged high-skilled unemployment rate. Without wage rigidities, the unemployment rates remain unchanged but the wage dispersion widens.  相似文献   
102.
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   
103.
This paper is devoted to the problem of aggregation in models with quantity constraints. The focus is on quantity rationing macroeconomic (QRM) models where the micromarket outcome can be written as the minimum of several variables and where the diversity of situations across micromarkets is explicitly recognized. The aggregation result given in this paper generalizes that of Lambert (1988) to employment functions with more than two components, and leads to approximate aggregate functions of the CES variety. The approximation used can accomodate general variance-covariance structures. Simulation experiments show that the approximation error remains within reasonable bounds (1–4%). It thus seems that the CES formulation can accomodate a large variety of situations. It remains in particular valid when the (restrictive) conditions required to obtain the CES function as an exact result (independently and identically distributed Weibull variables) are not satisfied. First version received: July 1997/Final version received: March 1999  相似文献   
104.
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   
105.
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   
106.
Crowdsourcing has been attracting the attention of both academics and practitioners over recent years. The aim of this article is to contribute to the current body of knowledge on innovation in networked contexts by systematically analyzing various crowdsourcing configurations available to industrial firms. We first develop a categorization of crowdsourcing in industrial firms comprising four distinct configurations: internal crowdsourcing; community crowdsourcing; open crowdsourcing; and crowdsourcing via a broker. We then proceed to draw from the literature on industry networks to further deepen our understanding of how these four distinct configurations can contribute to business and innovation activities of a focal industrial firm. Specifically, we focus on the structural properties, nature of collaboration, and governance of crowdsourcing networks. This novel combination of crowdsourcing and network research delivers new insights that enrich current understanding on various options available to industrial firms operating in networked contexts to facilitate their innovation processes.  相似文献   
107.
The financial crisis of 2008 and the resulting recession caught many companies unprepared and, in so doing, provided a stark reminder of the importance of effective risk management. While academic theory has long touted the benefits of risk management, companies have varied greatly in the ways and extent to which they put theory into practice. Drawing on a global survey of over 300 CFOs of non‐financial companies, the authors report that while most CFOs felt that their risk management programs have significant benefits, the risk management function in general needs more attention. A large percentage of the finance executives surveyed acknowledged that the most important corporate risks extend far beyond the CFO's direct reports, and that risk‐based thinking is not incorporated into everyday business activities or corporate strategies. A large majority of executives also said they were seeking a more widespread understanding of risk throughout their organizations—and many confessed their firms' inability, or lack of interest, in evaluating their own risk management functions. At the same time, the efforts of most companies to develop enterprise‐wide risk management (ERM) programs were said to fall well short of the comprehensive and highly coordinated programs envisioned by the proponents of such programs. Three areas of opportunity were clearly identified as having potential to improve corporate risk management in ways that increase firm value over an entire business cycle:
  • ? Incorporate risk management thinking into the strategic planning process. Line executives, and not just technicians, need to be sensitive to risks, thereby building flexibility into the firm's business plan and its execution.
  • ? Clearly define the objectives of the risk management function, in part by developing appropriate benchmarks. The risk management process should be subject to the same rigorous evaluation process that is used when measuring risks throughout the business.
  • ? Instill a risk management culture throughout the organization. While an effective risk management function is necessary, only when employees at all levels of the company embrace risk management as part of their daily operations will the firm get maximum value from risk management.
  相似文献   
108.
109.
The great design comes from the great ambition. Just as our CMH Group, we first have a good tradition in practice. As the leading enterprise in France and Lille area, the group always lays stress on the sustainable development of our company. This is the best development policy of CMH Group in realizing her double goal: develop and help others to develop. First of all, we help our customers to develop, as housing supply is not only the supply of walls and roofs.  相似文献   
110.
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