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   4910篇
  免费   39篇
  国内免费   1篇
财政金融   344篇
工业经济   145篇
计划管理   445篇
经济学   2955篇
综合类   201篇
运输经济   13篇
旅游经济   51篇
贸易经济   389篇
农业经济   35篇
经济概况   372篇
  2024年   8篇
  2023年   76篇
  2022年   277篇
  2021年   319篇
  2020年   424篇
  2019年   329篇
  2018年   297篇
  2017年   304篇
  2016年   344篇
  2015年   163篇
  2014年   202篇
  2013年   222篇
  2012年   205篇
  2011年   401篇
  2010年   222篇
  2009年   254篇
  2008年   200篇
  2007年   166篇
  2006年   144篇
  2005年   69篇
  2004年   65篇
  2003年   45篇
  2002年   44篇
  2001年   28篇
  2000年   17篇
  1999年   26篇
  1998年   10篇
  1997年   8篇
  1996年   10篇
  1995年   4篇
  1994年   8篇
  1993年   9篇
  1992年   3篇
  1991年   3篇
  1986年   1篇
  1985年   3篇
  1984年   40篇
排序方式: 共有4950条查询结果,搜索用时 796 毫秒
861.
This paper aims at providing a comprehensive empirical appraisal of the nature, extent and sources of variety in innovation in industry across Europe. The results presented in the empirical section of this paper are based on a unique database (SIEPI) containing data drawn by the second Community Innovation Survey (CIS2) for 10 countries, 22 manufacturing sectors and three firm-size classes. This database has allowed us to look beyond the sectoral aggregate statistics provided by Eurostat and explore in detail the differences in innovation processes both within and across European countries and manufacturing industries. Further, the SIEPI database has been used to identify the determinants of the variety in innovation across Europe. In particular, the analysis focuses on the relative importance of sector-specific, context-specific and firm-size factors in driving firms’ innovative behaviours and performances.  相似文献   
862.
The purpose of this paper is to determine whether organizational strategies in various manufacturing industries are complementary with innovation. In particular, our interest is to discover which organizational strategies are complementary with major innovations (world-first and Canada-first). Knowledge of complementarity should pave the way for creating sustainable competitive advantage because the use of a complex strategy may be difficult to imitate. In other words, competitive advantage increases as the complexity of the strategy increases (i.e. because the number of strategy combinations follows a power law), which acts as a barrier to potential imitators (Rivkin, J.W. (2000) Imitation of Complex Strategies. Management Science, 46(6), 824–844.).

Because of the static nature of our results (productivity and profit are for 1997), their interpretation can only be tentative. Thus, our research is really a first step along the road to understanding the (potential) importance of complementarities among firm strategies. Caveats aside, managers may want to compare their own firm’s emphasis on particular strategies against what is empirically determined to be complementary with innovation and high-performance within their industry. The frequency of complementary pairs that involve innovation range from 40 to 50% depending on whether we are talking about profit, productivity, or strategies. This result is important—as it means that innovation outcomes are statistically significant for both increased productivity and increased profit. Furthermore, innovation was found to be complementary with many organizational strategies. The complementary strategies across industries were quite different, but this was expected to occur.  相似文献   
863.
This article analyzes cost-reducing R&D investments by firms that behave non-cooperatively or cooperatively. Firms face a trade-off between allocating their R&D investments to innovate or to imitate (absorb). We find that the non-cooperative behavior not only induces more imitation (absorption) but also, for the most part, more innovation investments. Only the cooperative behavior, however, ensures that R&D investments are allocated efficiently to innovation and to imitation (absorption) in the sense that any given amount of industry-wide cost reduction is obtained for the minimum overall R&D costs.  相似文献   
864.
This paper examines the impact of financial constraints on innovation for established firms. We make use of a direct measure of the existence of financial constraints obtained thanks to a specific survey addressed to French established firms. This is a distinctive feature of this paper as most of previous studies had to rely on proxies (like the cash-flow sensitivity), which may be subject to interpretation problems. The probability to have innovative activities and the probability to face financial constraints are simultaneously estimated by a recursive bivariate probit model. Accounting for the endogeneity of the financial constraint variable, we find that financial constraints significantly reduce the likelihood that firms have innovative activities. The probability to encounter financial constraints is explained by firms’ ex ante financing structure and economic performances.  相似文献   
865.
ABSTRACT

The objective of this paper is to analyse the impact of public funds for innovation on firm’s capabilities, innovative dynamics and economic performance. A large stream of literature about the evaluation of public funds is focused on testing the existence of additionality effects on investments and results. This paper aims to provide evidence about other dimensions of the firm that public policy can alter, with focus on the time window between the treatment and the impact, and the role of the Matthew effect (recurrence) in this process. The empirical exercise is based on a dynamic panel data made of 1465 firms (3337 observations) that applied to the Argentinean Technological Fund (FONTAR), which is the main public fund for innovation in Argentina, between 2007 and 2016. Results show short-term effects of accessing to FONTAR on firms’ capabilities, medium-term effects on innovation efforts and long-term effects on productivity. Even though the effect on productivity is larger among recurrent firms, the differences among recurrent and non-recurrent firms are not conclusive in case of capabilities and innovation efforts. All in all, this research provides evidence about the ‘when’ of public policy and the need to look beyond input additionality effects when analysing its impact.  相似文献   
866.
The impact of technological change upon gross investment has been relatively ignored. Building upon the foundations of the analysis of technological diffusion, an empirical model of gross investment is constructed that takes due account of technological change. This model is then tested upon a panel data set covering 185 UK firms over the period from 1984 to 1992. The results support the hypothesis that there are significant relationships of the expected signs between firm level gross investment, indicators of technological opportunity; the price of the capital goods that embody new technology, and firm and industry characteristics. There is also evidence of lagged adjustment effects in the investment process.  相似文献   
867.
The article presents a methodology for the formation and functioning of industrial networks that favors the development of dynamic capabilities with regard to the creation, integration, transfer and absorption of knowledge. This methodology has been put into practice in a case study: Lignum Facile. The presence of some misalignments between our initial proposal and its implementation helped us reshape and emphasize particular processes and flows associated to the methodology. Beyond the typical localization and agglomeration advantages, the analysis suggests that the success in the formation and functioning of industrial networks is mainly related to their potential to formulate immaterial relationships capable of stimulating learning processes, the dissemination of technological knowledge and innovative activities. Particularly, we found that the inclusion of border agents – intermediaries between the market and industry such as architects, engineers or designers – is fundamental to develop innovations at the intersection of different scientific and technological disciplines.  相似文献   
868.
869.
This paper analyzes the impact of WLAN technologies for incumbent MNOs based on an empirical cross-country study of the players in the public WLAN-hotspot market using the theory of disruptive innovation and theoretical extensions for the industry- and country-level. The main research question to be analyzed is whether and why PWLAN has shown a disruptive or sustaining impact trend for incumbent MNOs in the hotspot markets of Germany, the UK, and the USA in recent years. The results imply that incumbent MNOs and new entrants have taken advantage of the opportunity provided by PWLAN, but the market success of both types of players varies between the countries analyzed. Incumbent MNOs dominate in Germany but not in the UK and the USA. The reasons for these country-specific differences were further investigated, and the results suggest that the analysis of disruptive potential in telecommunications needs to include country- and firm-specific factors, which are, again, largely influenced by the local regulation.  相似文献   
870.
2005年以来,商业银行理财产品创新迅猛发展,在满足大众旺盛的投资需求的同时也为商业银行创造了新的利润增长点。与此同时,我们注意到,商业银行理财产品创新对宏观审慎管理的实施提出了新的要求。本文在对理财产品市场发展现状和特点进行总结的基础上,梳理出理财产品创新对宏观审慎管理影响的六个突出问题,最后提出下一步的政策建议。  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