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   15207篇
  免费   605篇
  国内免费   487篇
财政金融   651篇
工业经济   1472篇
计划管理   5142篇
经济学   2030篇
综合类   2323篇
运输经济   89篇
旅游经济   85篇
贸易经济   1927篇
农业经济   471篇
经济概况   2108篇
信息产业经济   1篇
  2024年   28篇
  2023年   145篇
  2022年   202篇
  2021年   344篇
  2020年   327篇
  2019年   187篇
  2018年   186篇
  2017年   212篇
  2016年   237篇
  2015年   400篇
  2014年   1021篇
  2013年   1116篇
  2012年   1496篇
  2011年   1629篇
  2010年   1365篇
  2009年   1049篇
  2008年   1199篇
  2007年   1153篇
  2006年   1167篇
  2005年   894篇
  2004年   621篇
  2003年   479篇
  2002年   257篇
  2001年   222篇
  2000年   167篇
  1999年   61篇
  1998年   34篇
  1997年   16篇
  1996年   13篇
  1995年   33篇
  1994年   12篇
  1993年   3篇
  1992年   3篇
  1991年   2篇
  1990年   1篇
  1989年   3篇
  1988年   1篇
  1987年   1篇
  1986年   2篇
  1985年   2篇
  1984年   1篇
  1983年   2篇
  1982年   3篇
  1981年   1篇
  1980年   1篇
  1978年   1篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
21.
在企业创新动力和企业创新机理分析的基础上,从创新方法支撑企业创新活动的角度,重点分析了资金、人才、制度三种创新要素和学习能力、创新管理能力、生产能力和营销能力四种能力如何应用创新方法予以整合和提升。并以宁夏为例,系统阐述区域创新方法支撑企业创新活动的实践路径,提出深化区域创新方法应用推广,支撑企业创新活动的建议,为我国区域创新方法应用推广工作提供参考与借鉴。  相似文献   
22.
Luby变换(Luby Transform,LT)码作为信道编码应用于电力线通信(Power Line Communication,PLC),可实现电信号的可靠传输。度分布对LT码编译码性能的影响至关重要。为了得到更优的度分布,首先调整二进制指数分布(Binary Exponential Distribution,BED)中的度数比例,获得一种译码性能更优的改进的二进制指数分布(Improved BED,IBED)。然后,根据IBED在冗余度较小时译码成功率高,而冗余度增大后鲁棒孤子分布(Robust Soliton Distribution,RSD)的译码性能表现更佳的特点,通过求和归一化的方式将IBED与RSD两种度分布的优势进行有机结合,提出一种新型二进制鲁棒孤子分布(Binary RSD,BRSD)。仿真结果表明,与其他方法及传统的RSD相比,采用新度分布进行LT编码,可明显降低译码开销,并节约编译码耗时。将新型度分布应用于基于LT码的PLC系统中,能有效地抑制PLC信道中各种噪声对电信号的干扰,并提高通信效率。  相似文献   
23.
构建人力资源管理实践行为策略影响制造业转型升级的理论模型,以327家泉州制造企业为研究对象,通过问卷调查和结构方程模型分析,检验人力资源管理实践对制造企业转型升级的作用机制。结果表明,人力资源管理实践行为策略对企业转型升级具有显著的影响,组织创新气氛在两者之间起到部分中介作用。说明制造企业可以通过工作设计与人力资源规划、员工招聘与选择、员工培训与开发、绩效评价及薪酬与激励等策略的调整来促进企业转型升级。  相似文献   
24.
Our inquiry advances a comparison of the anthropological content of Thorstein Veblen’s evolutionary perspective with the foundations of the political anthropology drawn from selected works of Pierre Clastres. We seek to establish that what can be referred to as a clastrean reference can simultaneously offer new perspectives on institutionalism, while maintaining a radical and emancipatory understanding of Veblen’s writings. In this sense, we seek to reconsider and reevaluate the role of economic surplus drawn from Veblen’s anthropology, while also offering a general and critical perspective for understanding the emergence of coercive power within societies.  相似文献   
25.
王蕾 《科技和产业》2019,19(8):49-53
梳理国内外动力和储能电池产业发展情况,从产业规模、重点企业、产业链、培养方向等角度剖析了泰州市动力和储能电池产业的现状问题,并针对性地提出了发展建议。  相似文献   
26.
The purpose of this article is to present an overview about the origins of value creation in impact investing and propose a measure of value creation. According to this point of view, impact investing, i.e. investing in enterprises with a both social and financial objective can be justified only if those enterprises can provide for a higher performance than with a simple portfolio diversification (separate investment in two types of activity). After an overview about the sources of value creation in impact investees as well as about a discussion on existing methods, we propose a method to measure multidimensional value creation.  相似文献   
27.
Firms in emerging economies are faced with multiple, incompatible institutional forces in their environmental activities. Which of these forces will be dominant and instantiated within an organization is partly determined by the social relationships that a firm maintains with external actors. This paper investigates the relationship between board social ties and the level of environmental responsibility undertaken by firms in China, an emerging economy, by categorizing board social ties into three types in terms of the three isomorphic forces in the institutional field (coercive, normative and mimetic). Drawing on institutional and agency theories, using a sample of listed firms in environmentally sensitive industries, and a generalized least squares regression method, the results provide empirical evidence that ties that are linked to coercive and normative forces (i.e., political organizations and universities) are related to a higher level of environmental responsibility; however, those that are linked to mimetic forces (i.e., industrial peers) have a negative association with environmental responsibility, which is mitigated by CEO power. These findings suggest that the heterogeneous effects of board social ties on environmental responsibilities experienced by firms in a context of environmentalism are at an early stage.  相似文献   
28.
State-owned enterprises (SOEs) are commonly associated with undue advantages due to preferential treatment by the state. Simultaneously they are often quoted as handicapped given the notorious state interference, management problems and agency tensions. They used to be regarded as a mainly domestic issue but in the context of globalisation and the fact that states enter treaties with new obligations, SOEs’ performance ceased to be solely a domestic problem, increasingly so as state-owned multinational enterprises (SOMNEs) emerge. This article presents the results of research on Polish SOEs’ outward foreign direct investment (OFDI). It offers an overview of overseas activities of nine major Polish firms with a state stake and aims to contribute to the conceptual literature on foreign investments conducted by SOMNEs. We distinguish between FDI by SOMNEs as specific – privileged (facilitated) or discriminated (hampered) – investments subject to the home country’s state power and the host country’s state perception.  相似文献   
29.
中小企业在我国的国民经济中占据了半壁江山,其为国民经济的发展贡献了重要的力量,在我国的竞争市场占据了重要的份额,为我国广大的待就业人士提供了就业的机会。论文就新时代中小企业运营管理与竞争力再造展开研究,以供参考。  相似文献   
30.
ABSTRACT

The paper presents a new combined annual cost of living and consumer price index for Norway covering 1492–2018, indicating that Norwegian price history has to be revised. The new historical price index is constructed on a significantly richer data material, which also makes it cover a longer period of price history than the existing one. This is made possible by the compilation of quantitative data from numerous sources, mostly originating from the eighteenth, nineteenth and early twentieth centuries, with grain prices stretching back to 1492. The new combined cost of living and consumer price index is constructed by a Laspeyres approach with shifting baskets for commodities and expenditure groups.

The index makes it possible to follow annual inflation and deflation in Norway for a period of 526 years. When comparing to existing indices, the new series reveals that revisions are needed in Norwegian price history. These make the historical price development more in line with those of the neighbouring countries and more in line with the pattern of wholesale prices.  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