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   3763篇
  免费   224篇
  国内免费   68篇
财政金融   818篇
工业经济   127篇
计划管理   712篇
经济学   544篇
综合类   683篇
运输经济   21篇
旅游经济   9篇
贸易经济   481篇
农业经济   113篇
经济概况   547篇
  2024年   14篇
  2023年   62篇
  2022年   72篇
  2021年   127篇
  2020年   123篇
  2019年   78篇
  2018年   63篇
  2017年   79篇
  2016年   93篇
  2015年   115篇
  2014年   352篇
  2013年   255篇
  2012年   327篇
  2011年   402篇
  2010年   270篇
  2009年   242篇
  2008年   270篇
  2007年   241篇
  2006年   288篇
  2005年   190篇
  2004年   131篇
  2003年   95篇
  2002年   51篇
  2001年   42篇
  2000年   18篇
  1999年   7篇
  1998年   10篇
  1997年   12篇
  1996年   11篇
  1995年   4篇
  1994年   3篇
  1993年   1篇
  1992年   2篇
  1991年   1篇
  1984年   1篇
  1983年   1篇
  1981年   2篇
排序方式: 共有4055条查询结果,搜索用时 156 毫秒
1.
姜胜贤  文天凤 《科技和产业》2023,23(13):164-168
近年来,大量企业基于数字化转型实现了弯道超车。选取2007—2021年A股上市公司数据,利用企业年报中数字关键词的词频来描述数字化转型程度,研究企业数字化转型程度对企业融资成本的影响。研究发现:企业数字化转型与融资成本显著负相关;检验延长时间窗口发现,在企业实施数字化转型后的一段时间内,数字化转型仍然降低了融资成本;根据异质性分析,数字化转型对非国有企业降低融资成本产生的效果更好,且东部地区企业深化数字化转型降低成本的作用更显著。  相似文献   
2.
基于独特的京津冀地区企业调查数据和克服内生性的结构方程模型,本文对融资约束的成因及影响进行了实证分析。分析结果表明,企业自身条件和外部市场环境均对融资约束有重要影响,且企业自身条件对融资约束的影响更强。总的融资约束指标对企业绩效的影响不显著。在区分融资约束的不同维度后,本文发现,融资可得性提高显著促进了企业绩效提升,融资频率增加却降低了企业绩效,而融资获得速度(等待时间)对企业绩效没有统计上的显著影响。进一步的分析表明,无论是正规融资渠道,还是非正规融资渠道,上述结论仍然成立。利用多种政策提高企业的管理水平,改善企业的自身条件,是缓解融资约束的最有效办法。  相似文献   
3.
This paper examines co‐movement between stock returns and changes in 10‐year government bond yields as well as flight‐to‐quality behaviour in G7 countries. We conduct the wavelet squared coherence analysis to explore the dynamics in both time and frequency domain. Our results provide evidence of positive co‐movements, which vary over time and across investment horizon. The higher co‐movement is found to be more concentrated in the lower frequency bands. We further analyse the dynamic nature of the scale‐dependent wavelet correlations and find that the correlations are highly volatile and significantly increase across different time scales during the episodes of equity market turbulence. The increase in correlations reflects flights from stocks to safer bond investments as a result of dramatic changes in investor sentiment and risk aversion at times of market stress.  相似文献   
4.
5.
窦程强 《技术经济》2020,39(2):55-63
以纳税信用评级披露作为一个天然外生冲击,并基于2013—2016年1214家A股上市公司的微观数据构造准自然实验,使用双重差分法系统评估纳税信用评级结果披露对上市公司研发投入的影响。结果发现:纳税信用评级结果披露显著增加了上市公司的研发投入。基于PSM-DID方法的估计结果与上述结论无明显差异。稳健性检验也表明上述结论的正确性。机制检验表明,纳税信用评级结果披露通过降低企业的融资约束,进而促进企业增加研发投入。此外,分样本回归发现纳税信用评级结果披露只能对中小型企业和民营企业的研发投入产生促进作用。  相似文献   
6.
In this paper, we empirically investigate how greenness information is priced in the green bond market. Our comparison of liquidity-adjusted yield premiums of green bonds versus synthetic conventional bonds indicates that, on average, there is no robust and significant yield premium or discount on green bonds. However, green bonds certified by an external reviewer enjoy a discount of about 6 bps. Furthermore, green bonds that obtain a Climate Bonds Initiative certificate show a discount of around 15 bps. The findings suggest that a universally accepted greenness measure can benefit the development of the green bond market.  相似文献   
7.
This paper examines the return and volatility spillovers between the foreign exchange and bond markets of India using a bivariate asymmetric BEKK-GARCH (1,1) model for the period 4 April 2005 to 31 March 2017. We find the evidence of bidirectional return and volatility spillovers with asymmetric effects between these two markets. The spillovers are evidenced even during the periods when foreign portfolio investments in the Indian bond markets were relatively low suggests the existence of strong inter-linkages between both the markets.  相似文献   
8.
改革以来,债券市场在中国金融体系的相对重要性不断上升,成为引致金融脱媒的重要载体。债券市场在中国引发的金融脱媒表现出明显的阶段性。之所以会出现这样一种状态,是因为企业债市场一度受到“隐性担保”等因素约束,政府及作为既得利益者的商业银行均不愿其得到发展。2005年以来,在金融管制日益放松的背景下,中国的商业银行意外地成为推动并参与企业债市场的重要主体,进而演变出一个与债券市场相伴生的银—企“双赢”格局。  相似文献   
9.
This study investigates debt market effects of research and development (R&D) costs capitalization, using a global sample of public bonds and private syndicated loans issued by public non‐financial firms. Firstly, we show that firms capitalize larger amounts of R&D in a year when they exhibit a propensity for issuing bonds, rather than borrowing funds privately from the syndicated loan market, in the subsequent year. Secondly, we provide evidence that capitalized R&D investments reduce the cost of debt. We infer that debt market participants are able to identify firms’ motives for R&D capitalization, as we find a reduction in the cost of debt only for those firms that do not show indications of employing R&D capitalization for earnings management reasons. Indeed, only for this sub‐sample of firms, the amount of capitalized R&D contributes positively to future earnings. We confirm that R&D capitalization is positively associated with audit fees and thus can be deemed to be a signaling device. Lastly, we find that it is the amount of R&D a firm is expected to capitalize and not the discretionary counterparts, which facilitates a firm's access to public debt markets, reduces bond and syndicated loan prices, and contributes to future benefits.  相似文献   
10.
The aim of this paper is to consider the sources of finance used to support major capital expenditure in the UK Higher Education sector and to reflect on any differences between traditional corporate finance theory and practice in the UK university sector. Utilising both HESA data returns and published annual accounts, an in-depth analysis using a logit structure is carried out on data from the top 63 UK universities over the period 2014–2017, to establish the range of funding sources adopted for major capital projects, all set within the context of the UK macro environment and a period of low interest rates. The research also carries out a survey of funders to understand the decision criteria used by lenders active in the Higher Education sector and a survey of university finance directors to determine the use of the funds, the reasons behind past lending decisions and to ascertain likely future demand for finance to fund major capital projects.  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