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   67208篇
  免费   2676篇
  国内免费   1141篇
财政金融   5598篇
工业经济   2637篇
计划管理   13936篇
经济学   11537篇
综合类   13527篇
运输经济   408篇
旅游经济   1125篇
贸易经济   8749篇
农业经济   4568篇
经济概况   8938篇
信息产业经济   2篇
  2024年   412篇
  2023年   750篇
  2022年   940篇
  2021年   1346篇
  2020年   1787篇
  2019年   1169篇
  2018年   1062篇
  2017年   1168篇
  2016年   1277篇
  2015年   1647篇
  2014年   3867篇
  2013年   4587篇
  2012年   5546篇
  2011年   7135篇
  2010年   5186篇
  2009年   4605篇
  2008年   5175篇
  2007年   4852篇
  2006年   4777篇
  2005年   3514篇
  2004年   2539篇
  2003年   2045篇
  2002年   1363篇
  2001年   1218篇
  2000年   792篇
  1999年   398篇
  1998年   205篇
  1997年   214篇
  1996年   148篇
  1995年   86篇
  1994年   72篇
  1993年   85篇
  1992年   52篇
  1991年   40篇
  1990年   39篇
  1989年   28篇
  1988年   24篇
  1987年   13篇
  1986年   12篇
  1985年   175篇
  1984年   195篇
  1983年   140篇
  1982年   100篇
  1981年   59篇
  1980年   74篇
  1979年   45篇
  1978年   36篇
  1977年   23篇
  1975年   1篇
  1973年   1篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
111.
李恒 《改革》2004,(6):68-73
在当前全球化浪潮中,跨国并购已成为跨国投资的主要方式,更是我国今后引资的重要趋势。然而这种不同性质的多种资本主体并存于中国市场的特质将直接决定彼此的生存空间和获利机会,并最终决定投资的绩效和宏观经济稳定性。分析跨国公司进入中国市场的方式和在中国市场上进行竞争的手段,并从品牌、技术和币场占有率三个方面考察跨国并购对我国市场结构的影响,可以得出已经形成隐性垄断的结论,相应地从企业和政府两个层面提出对跨国并购实施竞争规制的应对策略。  相似文献   
112.
This paper studies the effects of international capital market integration on welfare and the speed of adjustment in a two-region endogenous growth model. Monopolistic firms undertake research and development (R&D) to improve their productivity level. National and international knowledge spillovers affect the returns to R&D. The two countries differ with respect to the initial productivity level and R&D capability (which is a proxy for human capital and structural policies). Long-run productivity gaps are determined by the difference in R&D capability. Over time, there is conditional convergence in productivity levels. The speed of convergence is larger with integrated international capital markets than without. Long-run gaps in consumption levels are larger in the former situation than in the latter. Capital market integration harms (benefits) the leading (lagging) region if domestic spillovers are more important than international spillovers and differences in R&D capabilities are small.The authors research is supported by the Royal Netherlands Academy of Arts and Sciences. He thanks Lucas Bretschger, Theo van de Klundert, and Richard Nahuis, Thomas Steger, and Helmut Wagner for comments on an earlier version.  相似文献   
113.
The project construction time is not sufficiently considered in the decision-making procedure of the extant city infrastructure project all over the world. From the principle to increase benefit from the investment, the paper discusses the influence of construction time on benefit from investment, the condition of the optimal construction time, the method to confirm the optimal construction time, etc., under the increases of market demand, the paper establishes mathematics model between the construction time and the project benefit, and the model involves the project age, the construction time, the capital cost, the market demand, the discount rate and so on. Finally, the paper quantitatively analyzes the influence characteristics and degrees of construction time to the project profits, and the method to determine the optimal construction time of a project under different market demand .To emphasize that, the paper researches on Chinese cases, but, the conclusion put forward has the widespread significance to the time choice on city infrastructure project of other countries.  相似文献   
114.
In China, per capita water resource is hard up very much, and it has already become a very important restrictive factor to the economic growth, for over 20 years, the water quality of the river basins of our country has worsened continuously, further aggravated the pressure from water resource !o society and economic development. Though the party and government have done a large amount of work; and have made great achievements in prevention and control of water pollution, but as a whole, the severe situation of water pollution hasn't been changed radically, in some areas, it's being still aggravated. The appearance of this situation involves numerous causes of many aspects, such as the thought, technology, method and system, etc. The author maintains that we must strengthen the construction of legal system, and overcome the problem of soft management existing at pre sent, to enhance the dynamics of prevention and control of water pollution; simultaneously sets forth a concept: on the basis of green accounting, use the economic means, harden the interest restriction, strengthen the management of preventing and controlling of water pollution; hopes to offer a new way of thought for improving the water quality and environment.  相似文献   
115.
基于规模经济和技术进步两种效应的商业银行效率研究   总被引:1,自引:0,他引:1  
利用超对数成本函数,从规模经济和技术进步角度,对中国商业银行1995到2005年的效率进行实证表明,一方面,中国商业银行业存在着规模经济和技术进步正效应,这主要得益于股份制商业银行;另一方面,国有商业银行的规模不经济和技术进步负效应,导致中国商业银行业的效率较低.因此,要保持中国商业银行业效率的不断提高,必须压缩国有商业银行的规模,加快股份制商业银行的发展,改善商业银行的治理结构.完善金融人才的培养机制.  相似文献   
116.
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   
117.
针对新粤浙管道工程的特点,在对川气东送管道工程的管材采购经验进行总结的基础上,从管材标准制定、供应商管理、全过程质量控制及科学管理的角度,对采购质量控制问题进行了探讨,并提出了加强管材采购质量控制的措施和建议。  相似文献   
118.
国际贸易中信用证欺诈例外及相关法律问题   总被引:2,自引:0,他引:2  
迄今为止,我国有关信用证欺诈例外的成文法制建设尚处于空白状态,为了更好地借鉴国外的经验完善国内体制,本文拟对信用证欺诈例外的产生、发展、特征及具体司法操作中何谓欺诈、欺诈例外的排除适用问题等作一系统研究,并就我国在司法实践中存在的问题进行探析,提出自己的一些看法。  相似文献   
119.
关于智力资本出资的法学思考   总被引:1,自引:0,他引:1  
智力资本是智力资源资本化的成果,是知识经济时代企业的核心竞争力。智力资本与股本具有同质性,可以作为资本出资。但是智力资本出资目前还存在制度上的障碍,包括立法上我国尚未承认智力资本,智力资本的会计核算存在诸多困难等。要改变这种状况,必须突破传统的“资本”概念的外延,提升智力资本的价值。  相似文献   
120.
计划是物资供应的首要环节,及时、准确地制订物资需求计划和采购计划,是实施采购、控制进度和成本的根本保证。结合物资供销处需求计划管理现状,提出了一套比较规范、合理的考核标准,促进了物资需求计划管理水平的提高。  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