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   9827篇
  免费   274篇
  国内免费   197篇
财政金融   893篇
工业经济   535篇
计划管理   2410篇
经济学   1525篇
综合类   1390篇
运输经济   67篇
旅游经济   293篇
贸易经济   1560篇
农业经济   668篇
经济概况   957篇
  2024年   29篇
  2023年   128篇
  2022年   183篇
  2021年   222篇
  2020年   339篇
  2019年   241篇
  2018年   212篇
  2017年   265篇
  2016年   267篇
  2015年   282篇
  2014年   595篇
  2013年   824篇
  2012年   783篇
  2011年   882篇
  2010年   666篇
  2009年   621篇
  2008年   770篇
  2007年   717篇
  2006年   613篇
  2005年   517篇
  2004年   372篇
  2003年   260篇
  2002年   157篇
  2001年   114篇
  2000年   76篇
  1999年   47篇
  1998年   26篇
  1997年   25篇
  1996年   18篇
  1995年   8篇
  1994年   4篇
  1993年   6篇
  1992年   10篇
  1991年   4篇
  1990年   3篇
  1989年   2篇
  1988年   2篇
  1986年   1篇
  1985年   1篇
  1983年   2篇
  1982年   4篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
231.
文章以2002年和2007年我国上市公司的自查报告为基础,选择了18个指标构建了公司治理指数,并以此对我国上市公司的治理状况及其5年间的改进程度进行了综合评价。结果显示,治理指数与公司价值显著正相关,治理指数每上升1点,公司价值约增加0.3个百分点;5年间上市公司的治理水平有明显改进,这种改善总体上会带来公司价值的提升,但这一结论存在一定的内生性。进一步研究表明,上述治理改进的效果是股东权利、董事会与监事会、公司独立性和内控与激励机制等治理机制共同作用的结果。文章还发现,公司风险程度、融资需求、外部市场化水平、兼并或借壳上市等公司特征在一定程度上驱动了上市公司的治理改进。  相似文献   
232.
引入过程互依性和项目不确定性,探讨了KIBS企业-顾客交互创新中知识整合的权变机制。基于338份服务创新项目问卷数据进行实证研究,结果显示:在KIBS企业-顾客交互四要素中,除规则正式化负向影响外部知识整合以外,决策集体化、资源共享和任务协作均正向影响内、外部知识整合;过程互依性增强了规则正式化、决策集体化和任务协作对内部知识整合的影响,但对资源共享与内部知识整合间关系的调节作用不显著;项目不确定性增强了规则正式化、资源共享和任务协作对外部知识整合的影响,但对决策集体化与外部知识整合间关系的调节作用不显著。  相似文献   
233.
不确定性与会计职业判断   总被引:3,自引:0,他引:3  
市场经济是一个动态的、复杂的、开放的经济系统,在其运行过程中,存在着大量的不确定性因素.作为以价值形式对经济运行进行数量反映和质量分析的会计,必然存在着对会计职业进行判断的问题.本文从经济活动不确定性的成因与会计职业判断的项目要求的因果关系分析入手,强调提高会计人员的职业判断能力,减少经济活动的风险的必要性.  相似文献   
234.
This article estimates the Value of Commuting Time (VOCT) among Swedish males in an empirical on-the-job search model. It uses a large sample of employee-establishment linked data obtained from administrative registers. The sample lacks information on mode choice for the journey to work. We therefore estimate a mode choice model on another sample and use this model to link the administrative data to the relevant set of travel times, costs and distances. The VOCT is found to be 1.8 times the net hourly wage rate in the sample. The relatively high estimate results from a high VOCT among cohabiting men.  相似文献   
235.
There is a growing body of evidence that the labour payment share in national income varies across countries and over time, suggesting that the popular aggregate Cobb–Douglas production function may not capture income share dynamics. There remains conflicting evidence on the importance of natural resource rents among low income economies and on estimates of the rate of return to produced capital. This paper focuses on the structural differences among countries, confirming the importance of the agriculture sector in estimates of labour and land’s share of factor income based on 81 countries at diverse levels of economic development in the year 2005. I find that cross-country data are best modelled by a CES production function with an elasticity of substitution of 0.8 and that many low income countries have a higher return to capital than the United States.  相似文献   
236.
This study compares a range of agricultural commodities over periods of varying economic circumstances. These commodities are examined over three categories, including returns, risk, and contribution to portfolio optimisation. Consistency in these categories is determined over four equal three-year stages which comprise pre-GFC (Global Financial Crisis), GFC, post-GFC and post-post GFC. To demonstrate resilience in the most extreme circumstances, the study uses Conditional Value at Risk (CVaR), which measures extreme risk in the tail of a distribution, as the risk measure and risk-return optimiser. The study thus provides a unique and comprehensive extreme-risk based focus which identifies and ranks the consistency of performance of agricultural commodities over a range of criteria and conditions. Cattle commodities consistently demonstrate the strongest overall performance in the categories examined.  相似文献   
237.
Globalization, high growth rates in high-tech industries, growing emerging markets and harmonization of patent institutions across countries have stimulated patenting in foreign markets. We use a simple model of international patenting, where the decision to patent in a foreign country depends on country characteristics and the quality of the patented invention. With access to a detailed database on individual patents owned by small Swedish firms and inventors, we are able to estimate some of these relationships and test their validity. Our results indicate that the propensity to apply for international patent protection increases with indicators of the quality of the invention, technological rivalry and market size in the host market.  相似文献   
238.
Strategic niche management (SNM), a tool to understand and manage radical socio-technical innovations and facilitate their diffusion, has always departed from a technical artefact. Many radical innovations, however, do not revolve around such an artefact. Social entrepreneurship is a new business model that combines a social goal with a business mentality and is heralded as an important new way to create social value such as sustainability. This study examines if and how SNM can be applied to such a social innovation. It identifies theoretical and practical limitations and proposes solutions. The main conclusion is that SNM can be used to analyse radical social innovation, although it requires rethinking the initial entry point for research and management. Exemplifying quotes are proposed as an alternative. Second, this paper suggests using values to describe niche–regime interaction as a better way to anticipate future niche–regime interactions.  相似文献   
239.
Companies regard innovation as a central element of their business. However, as not all innovation types are the same, the central question is: should their announcements bring about the same effect on performance? This article analyses potential differences in firm value derived from the innovation-type announcements ‘R&;D’, ‘product’, and ‘process’, made by intensive news-generating firms such as biotech companies. The empirical application shows a significantly positive reaction to innovation announcements, with the prospect of future innovation (‘R&;D’ investment announcements) having greater impact on firm value than ‘product’ and ‘process’ innovations. Firm experience also acts as a moderator in this innovation–performance relationship, which is particularly relevant for entrepreneurs who need to develop and send credible signals indicating the value of the firm's intangible assets to the market.  相似文献   
240.
ABSTRACT

Marx's Capital shows that surplus value can be produced in one industry, yet realized as profit (and possibly revenue) by other industries over the course of circulation. This paper highlights the separation between surplus value production and realization in Marx's work, and develops a new method for estimating surplus value production at the industry level to trace out transfers of surplus value across industries. The framework is based on the ‘New Interpretation’ and links money value added to surplus value production at the industry level. Data on value added by industry for the U.S. are used to estimate surplus value production by industry. The analysis allows comparison of surplus value production and realization in each industry. The pattern of differentials between surplus value creation and realization across industries sheds light on the processes of capitalist competition and points to a source of instability for capitalist economies.  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