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   2835篇
  免费   45篇
  国内免费   2篇
财政金融   297篇
工业经济   64篇
计划管理   352篇
经济学   962篇
综合类   211篇
运输经济   17篇
旅游经济   38篇
贸易经济   331篇
农业经济   74篇
经济概况   536篇
  2024年   1篇
  2023年   22篇
  2022年   82篇
  2021年   76篇
  2020年   105篇
  2019年   90篇
  2018年   85篇
  2017年   105篇
  2016年   120篇
  2015年   68篇
  2014年   119篇
  2013年   136篇
  2012年   273篇
  2011年   316篇
  2010年   208篇
  2009年   218篇
  2008年   227篇
  2007年   166篇
  2006年   174篇
  2005年   105篇
  2004年   63篇
  2003年   28篇
  2002年   25篇
  2001年   26篇
  2000年   9篇
  1999年   8篇
  1998年   10篇
  1997年   3篇
  1995年   1篇
  1994年   2篇
  1991年   2篇
  1984年   8篇
  1979年   1篇
排序方式: 共有2882条查询结果,搜索用时 353 毫秒
61.
Social entrepreneurship has emerged as an active area of practice and research within the last three decades. Nevertheless, in spite of its growing popularity, scholars and practitioners are far from reaching a consensus as to what social entrepreneurship actually means. This has resulted in a number of different definitions and approaches within the field of social entrepreneurship. The purpose of this article is to shed light on the ongoing contestation of social entrepreneurship and to offer a novel conceptual understanding of the concept that can facilitate the development of systematic and structured future research. To this end, we analyze social entrepreneurship on the basis of the theory of essentially contested concepts, which was proposed by Walter Bryce Gallie in 1956. Building upon this theory, this article shows that social entrepreneurship can be regarded as an essentially contested concept and that a universal definition that would be accepted among contestant parties is hardly possible. Responding to this recognition, the article proposes the conceptualization of social entrepreneurship as a cluster concept, which can serve as a conceptual tool to help advancing social entrepreneurship as a coherent field of research despite its contested nature.  相似文献   
62.
基于新技术与新知识的高技术服务业跨界融合是传统企业实现创新资源优化配置、创新研发和商业转化的重要因素。因此,运用熵指数测度全国各省区高技术服务业与资源型产业融合水平,并利用2014—2017年资源型上市公司面板数据检验两大产业融合对资源型企业两阶段创新效率的影响,同时探讨企业吸收能力的调节作用。结果表明:现阶段高技术服务业和资源型产业融合程度不高,但发展态势良好,处于从失调走向协调的转变期;产业融合对资源型企业创新研发效率短期无显著影响,长期存在抑制作用,资源型企业技术能力刚性导致对新技术的排斥,且较大的产业间认知差距削弱了产业间良性互动带来的技术扩散效应;产业融合对创新转化效率呈先抑制、后促进效应,就长期而言,产业融合具有良好的创新转化推动力;资源型企业吸收能力分别在产业融合与滞后一期创新研发效率及滞后三期创新转化效率的关系中起正向、负向调节作用,表明资源型企业吸收能力构建尚不全面。  相似文献   
63.
The Spanish textile and apparel manufacturing sectors have been badly impacted by the global recession as well as the removal of quotas that were in place with the Agreement on Textiles and Clothing (ATC). This study employs a cost function to investigate the presence of scale economies and the interrelationships among inputs of domestic capital, labor, and intermediate goods as well as outsourced (imported) intermediate products for the Spanish textile industry in a global environment that has become increasingly competitive. While there is evidence of scale economies at low output levels, there is also some evidence consistent with diseconomies of scale at the highest output levels. All of the inputs appear to be substitutes for one another except for domestic capital and outsourced intermediate goods. An important finding is that the demands for both labor and domestic intermediate goods have become increasingly sensitive to the prices of outsourced inputs. The estimated coefficients of dummy variables indicate that reduced international trade restrictions have put downward pressure on unit cost for the industry in recent years. These results suggest that the Spanish textile industry and its domestic suppliers will be increasingly challenged by international competitive pressures.  相似文献   
64.
采用案例分析法,以国家传感网创新示范区建设的决策过程为研究对象,从资源配置视角重新审视了战略性新兴产业基地建设的决策过程。结果表明,在战略性新兴产业基地建设决策过程中,地方政府充分发挥了主观能动性,与中央政府、科研机构及企业积极互动,获得了建设产业基地的资源。同时,中央政府完成了与产业基地甄选及部署相关的资源配置。  相似文献   
65.
This study attempts to examine the presence of herding behavior in the Pakistan Stock Exchange (PSX). The novel contribution of this paper is that it investigates the herding phenomenon from a large number of facets such as herding of firms towards market, herding of firms towards industry portfolios, herding of industry portfolios towards market, herding in mostly traded stocks and in large and small stocks, and herding in the crisis period. For this purpose, we use the herding behavior model of Christie and Huang (1995) on the daily closing prices data of 609 firms listed on the PSX from January 2004 to December 2013. Results show that individual firms do not herd towards market index, except when the market experiences a negative return of 5%. However, when we sort firms into small and large groups based on median market capitalization, results indicate that large firms show herding behavior in extreme market movements. Further, we find that firms in several industries herd towards their industry portfolios. However, we find weak evidence of industry portfolios herding towards the market. We also segregate the impact of financial crisis of 2008 from normal times. These findings support results of our baseline estimation.  相似文献   
66.
Cluster emergence is an important topic but weakly conceptualized in the literature. Focusing on the interaction of the local knowledge pool and firm growth, the paper develops a comprehensive framework to understand cluster emergence. In the framework, the cluster formation process starts with the collision of local and external knowledge which generates an innovation and stimulates the creation of local pioneering firms in a new field. To support the growth of follow-up entrants in the new industry, the local knowledge pool needs to be expanded and deepened through local knowledge sharing and external knowledge inflows. The enlarged local knowledge pool enables local firms to grow and explore other fields further. To promote cluster emergence, public policies need to facilitate the interaction of the local knowledge pool and firm growth. The paper illustrates the interactive framework with two aluminum extrusion clusters in China that emerged in different ways over different time periods.  相似文献   
67.
This study summarizes the main conclusions from a systematic review of the empirical literature regarding the impact on firms of the use of knowledge external sources (universities, research institutes and knowledge intensive business services). With the aim to organize the literature, we classify the different works according to the research question addressed: (i) which firms use knowledge external sources?; (ii) Do firms using knowledge external sources achieve better results?; And (iii) which firms benefit the most from using knowledge external sources? Stylized facts are that larger, more R&D intensive and high tech firms are more likely to use knowledge external sources and that use of knowledge external sources is associated to firms higher technical results. Less attention has been paid to the third question and evidence is not conclusive. Several recommendations for future research emerge. First, to take in greater consideration methodological issues so that potential biases in the results caused by sample selection and endogeneity are handled properly. Second, to pay more attention to heterogeneous outcomes. Third, to use continuous indicators of depth and breadth of links allowing for non‐linear relationships and fourth, to extend evidence for developing countries and service industries.  相似文献   
68.
以往研究着重探讨重叠/非重叠知识在技术并购中的创新效应,然而在测度知识重叠时仅关注到数量属性而忽略了质量评估。因此,构建一个新的理论框架,利用国家知识产权局2008-2018年专利授权数据,分析217家中国机械制造企业352次国内技术并购案例,探索知识库中重叠、非重叠知识数量和质量属性对并购后创新绩效的影响。结果表明,高质量重叠知识对并购后的企业创新绩效具有正向影响,而高质量非重叠知识则有负向影响。同时,探讨知识数量对并购后创新绩效的影响。研究结果强调了知识重叠对企业获取外部知识的重要性,对企业技术并购实践具有借鉴作用。  相似文献   
69.
ABSTRACT

The objective of this article is to establish a dialogue between the recent ‘Industry 4.0’ (I4.0) literature and evolutionary neo-Schumpeterean studies about techno-organizational paradigms. In that direction, we wonder whether I4.0 constitutes a new paradigm, as it is assumed by the first group of literature, or it represents – until the moment – an intensification of key features of the information and communication technology (ICT) paradigm, following the second group of studies. Some questions are raised about the implications of I4.0 for developing countries (DEC), afterwards. Specifically, we reflect on the possibilities of these countries to identify and take advantage of new windows of opportunity, opened by the development and diffusion of these technologies. In this regard, the review of recent Latin American experience raises strong concerns regarding I4.0 as a new source of intra- and international heterogeneity, linked to the severe difficulties these countries have in appropriating these technologies in the form of productivity gains and quasi-rents. It seems that this is partially derived from weak technological, organizational, and connectivity capabilities paths of accumulation between institutions and actors.  相似文献   
70.
2012年下半年以来,由于市场不景气导致中国化工行业产品价格下降,而成本却不断攀升,企业盈利能力不容乐观,六国化工也不例外。文章对六国化工进行了介绍,并利用杜邦体系分析法等盈利能力指标对其分析,进而提出了相关建议,以便于六国化工找到突破困境的途径,获得持久的竞争优势及长期可持续发展。  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