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   688篇
  免费   19篇
财政金融   99篇
工业经济   69篇
计划管理   140篇
经济学   151篇
综合类   10篇
运输经济   6篇
旅游经济   12篇
贸易经济   144篇
农业经济   19篇
经济概况   57篇
  2020年   13篇
  2019年   24篇
  2018年   18篇
  2017年   26篇
  2016年   20篇
  2015年   16篇
  2014年   18篇
  2013年   86篇
  2012年   17篇
  2011年   28篇
  2010年   20篇
  2009年   28篇
  2008年   18篇
  2007年   17篇
  2006年   16篇
  2005年   15篇
  2004年   14篇
  2003年   26篇
  2002年   16篇
  2001年   17篇
  2000年   8篇
  1999年   10篇
  1998年   11篇
  1997年   5篇
  1996年   14篇
  1995年   9篇
  1994年   7篇
  1993年   15篇
  1991年   9篇
  1990年   5篇
  1989年   4篇
  1988年   5篇
  1987年   7篇
  1986年   5篇
  1985年   10篇
  1984年   10篇
  1983年   5篇
  1982年   4篇
  1981年   9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707条查询结果,搜索用时 15 毫秒
111.
We examine whether the language used in 10‐K filings reflects a firm's risk of bankruptcy. Our sample contains 424 bankrupt U.S. companies in the period 1994–2015 and we use propensity score matching to find healthy matches. Based on a logit model of failing and vital firms, our findings indicate that firms at risk of bankruptcy use significantly more negative words in their 10‐K filings than comparable vital companies. This relationship holds up until three years prior to the actual bankruptcy filing. With our investigation, we confirm the results from previous accounting and finance research. 10‐K filings contain valuable information beyond the reported financials. Additionally, we show that 10‐Ks filed in the year of a firm's collapse contain an increased number of litigious words relative to healthy businesses. This indicates that the management of failing firms is already dealing with legal issues when reporting financials prior to bankruptcy. Our results suggest that analysts ought to include the presentation of financials in their assessment of bankruptcy risk as it contains explanatory and predictive power beyond the financial ratios.  相似文献   
112.
Research and development (R&D) is a key factor enabling firms to gather information, create knowledge and innovate. Although often seen as the preserve of goods-producing sectors, knowledge-intensive business services (KIBS) in particular also engage in R&D. In this paper, we are interested in understanding the determinants of R&D in KIBS. We address this question by exploring factors connected to R&D in KIBS, with attention to whether it is connected with internal capabilities or to establishments' openness. We show that KIBS' R&D is associated with internal capabilities, and that recourse to external R&D is part of a strategy of openness that complements internal capacity. We also suggest that KIBS's own view of R&D is aligned with R&D in the goods-producing sector, leading establishments in non-technological KIBS sectors to under-report R&D.  相似文献   
113.
We develop a simple general equilibrium model of production where, despite the existence of involuntary unemployment, non–equalized job rents are the only distortion. Hence, a standard GDP function exists. Unemployment results from either efficiency wage setting or wage bargaining.  相似文献   
114.
This article investigates the long-term pricing relationship among crude oil, unleaded gasoline, and heating oil futures prices, and finds that these commodities futures prices are cointegrated. The study finds that the spreads between crude oil and its end products are stationary. Furthermore, this article investigates the risk arbitrage opportunities in three types of popularly traded petroleum futures spreads and finds that historically profitable risk arbitrage opportunities existed and were statistically significant. However, one cannot be certain that these opportunities still exist. The research also finds that moving averages are valid test variables for measuring spreads. Statistical and tabular constructions are used to illustrate findings. © 1999 John Wiley & Sons, Inc., Jrl Fut Mark 19: 931–955, 1999  相似文献   
115.
Competitor pressure is one of the major reasons that a SME engages in environmentally friendly or damaging activities. Extant research has argued that environmental strengths and concerns have mirror opposite relationships with stakeholder antecedents as well as with performance outcomes. We suggest this argument does not reflect the reality. Building on stakeholder management and Red Queen theories, we hypothesize that environmental strengths and concerns have differential relationships with competitors–firm power exchange and financial performance for Chinese SMEs. Results of ten interviews, a pretest, and a large-scale field study indicate that competitors–firm power divergence has a positive relationship with environmental strengths, yet the link between this divergence and environmental concerns does not exist. Further, environmental strengths mediate the relationship between competitors–firm power divergence and financial performance of Chinese SMEs.  相似文献   
116.
This paper proposes a framework to analyze the effects of scientific and commercial incentives in R&D organizations. We build a simple repeated model of a researcher capable of obtaining innovative ideas. Although they reduce the time spent on research, we show that commercialization incentives also affect the choice of research projects. Commercial rewards induce a more intensive search for (ex post) path-breaking innovations, which are more likely to be generated through (ex ante) riskier research programs. We derive the organization's optimal incentive scheme in terms of the researcher's characteristics. We show that organizations should use a high level of commercial incentives for scientists who have strong or weak intrinsic preferences for research. For those with strong preferences, the organization needs to induce development, whereas for those with weak ones, it needs to induce effort.  相似文献   
117.
The paper aims to provide a systematic overview of the barriers and enablers that contribute to the success or failure of collaborative workplaces initiatives aimed at fostering innovation in service companies. The study is based on semi-structured interviews with innovation managers, human resource managers and facility department executives from a sample of multi-national service companies. Its primary focus is on the workplace initiatives carried out in their Spanish subsidiaries. The paper contributes to the extant research by identifying a conceptual model for collaborative workplaces and by providing a systematic overview of the related barriers and enablers. From the interviews, these factors were organized within a framework usable by practitioners for analysis. This paper is of interest to companies that aim to design collaborative workplace strategies to justify associated investments. It can also provide their managers with guidelines to lead the company in the transition toward new ways of working based on higher employee collaboration and flexibility.  相似文献   
118.
119.
We offer empirical information on the correlates of commercialization activity for research projects funded through the US National Institutes of Health's (NIH's) Small Business Innovation Research (SBIR) award program. Based on this analysis we suggest possible recommendations for improving this aspect of the performance of NIH's SBIR program. Specifically, we estimate a model of the probability of commercialization as a function of the project's ability to attract additional developmental funding, along with other control variables. We find that additional developmental funding from non-SBIR federal sources and from own internal sources are important predictors of commercialization success, relatively more so than additional developmental funding from venture capitalists. We also find, among other things, that university involvement in the underlying research increases the probability of commercialization. Thus, these factors should be considered by NIH when making awards, if increased commercialization is an objective.  相似文献   
120.
This article analyses the importance of different technological inputs (R&D and human capital) and different spillovers in explaining the differences in patenting among Spanish regions in the period 1986 to 2003. The analysis is based on the estimation of a knowledge production function. A region's own R&D activities and human capital are observed to have a positive significant effect on innovation output, measured by the number of patents. R&D spillovers weighted by the distance and the volume of trade flows between regions cause positive effects on a region's patents. However, distance matters more than the intensity of trade flows and the R&D spillover effects between regions are bounded: spillovers from closer regions perform better than spillovers from distant regions. On the opposite side, human capital spillovers do not cause any effect outside the region itself.  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