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   2113篇
  免费   109篇
  国内免费   14篇
财政金融   156篇
工业经济   316篇
计划管理   553篇
经济学   325篇
综合类   112篇
运输经济   68篇
旅游经济   59篇
贸易经济   408篇
农业经济   51篇
经济概况   188篇
  2024年   12篇
  2023年   50篇
  2022年   35篇
  2021年   50篇
  2020年   110篇
  2019年   82篇
  2018年   77篇
  2017年   89篇
  2016年   94篇
  2015年   88篇
  2014年   184篇
  2013年   294篇
  2012年   171篇
  2011年   178篇
  2010年   132篇
  2009年   101篇
  2008年   93篇
  2007年   76篇
  2006年   71篇
  2005年   63篇
  2004年   32篇
  2003年   38篇
  2002年   25篇
  2001年   19篇
  2000年   13篇
  1999年   19篇
  1998年   9篇
  1997年   3篇
  1996年   12篇
  1995年   7篇
  1994年   1篇
  1993年   1篇
  1992年   1篇
  1991年   1篇
  1987年   1篇
  1985年   1篇
  1984年   1篇
  1983年   1篇
  1982年   1篇
排序方式: 共有2236条查询结果,搜索用时 15 毫秒
101.
Recently historians have complicated their understanding of networks. In particular, they have started to assess the role of networks in civic and formal arenas. This paper posits a quantitative methodology for a more nuanced and sophisticated analysis of mercantile networks within this environment. It uses visual analytics of Liverpool's business networks comprising political, trade, social and cultural institutions to assess their role in the changing social and economic climate during the period 1750–1810. This paper demonstrates the dynamic role of networks in the shaping of a metropolitan economy and the interplay between the two. In addition, it posits that, as is the case for regional clusters, there is a life cycle of networks. In this way, we are able to see how the networks sustained, nurtured and transformed social and economic activity during this period.  相似文献   
102.
通过对毛乌素生物质发电厂三碳经济产业治沙实践的经济、社会、生态以及碳循环等的效益分析,得出三碳经济产业治沙模式不仅是典型的循环经济模式,也是一种碳汇林业、低负碳经济与生态建设完美耦合的生态经济发展新模式。认为此模式对我国含水沙漠的治理,实现一举多赢的可持续发展以及林业应对气候变化,增汇减排意义重大。  相似文献   
103.
本文提出了一种新的混沌扩频序列产生方法。该方法基于神经网络的强大学习能力和副近非线性函数能力,应用具有全局最优的BP改进算法通过训练学习建立起具有混沌性态的优化神经网络模型,利用网络权值调整的灵活性来产生混沌扩频序列。计算机仿真结果表明,该模型产生的混沌扩频序列调整更容易,比基于单一混沌映射能产生更多符合扩频通信要求的扩频序列。  相似文献   
104.
本文研究了基于BP神经网络的通信信号调制体制识别技术。提取了反映信号调制体制差异的特征参数,并从提高收敛速度和正确识别概率出发,构建了最佳的神经网络分类器。实验结果表明,该技术拥有较好的通信信号调制体制识别性能。  相似文献   
105.
都市旅游圈不仅是都市旅游经济和区域旅游发展到一定阶段的产物,也是区域旅游经济活动分布和旅游资源配置在一定空间范围的一种组织形式。基于相关概念及研究的梳理,文章分析和探讨都市旅游圈空间结构的组合形态、生成机理,揭示都市旅游圈与区域旅游一体化发展内在联系,认为都市旅游圈空间结构呈现“网络化+多核心+互动”发展态势,并提出相应发展路径。  相似文献   
106.
王永培 《江苏商论》2020,(3):129-130,140
本文总结梳理了“两网融合”复合型贸易经济专业人才培养的现状和新的要求,分析了“两网融合”复合型贸易经济专业人才培养的发展方向。从建立教学和科研复合型教学团队模式、信息化平台和实验室“多媒介”培养模式、“两网融合”平台全流程内部审计型人才培养模式、“课程思政+专业技能”结合教学模式等四个方面总结模式创新的基本途径。  相似文献   
107.
This study investigates the integration of internationalizing Chinese firms into local host markets. We explore the market‐driven investment of a new wave of Chinese private and local state‐owned firms in Australia since 2012, which has replaced the initial large‐scale investment in resources by central state‐owned enterprises. Using an in‐depth analysis of nine Chinese firms operating in various sectors of the Australian market, we argue that market integration, adaptation, and bilateral institution‐building through co‐evolution and empowerment of local subsidiaries of Chinese multinational enterprises results in entrepreneurial autonomy and characterizes a new generation of Chinese investors. We propose that Chinese multinational subsidiaries have transferred domestic practices to the Australian market and have reconfigured domestic and host market resources to gain a competitive advantage in their original investment industry and new industries. Our study advances middle‐range theory building and provides a practical understanding of the strengths and weaknesses of Chinese investors, their potential to disrupt local markets, and their responsiveness to market‐oriented institutional guidance. The results of this study suggest that the bilateral institution‐building and resource reconfiguration capabilities of Chinese enterprises can be transferred to other developed and developing markets, including Belt and Road Initiative countries.  相似文献   
108.
International business fundamentally is about creating an ecosystem environment conducive to entrepreneurship. This means fostering actions and behavior that provide a systemic interaction with multiple entities. In this editorial for the special journal issue, the historical background and origins of the entrepreneurial ecosystem concept is discussed with the view to connected different strands of literature. This provides an optimal way to understand the way entrepreneurship develops through an ecosystem logic. The theoretical perspectives for understanding entrepreneurial ecosystems are discussed that lead to a discussion on each of the articles included in the special journal issue. Themes emerging from these articles are then stated that include a focus on value co‐creation, stakeholder collaboration and entrepreneurial networks. This enables a holistic way to understand the linkages international business has with entrepreneurial ecosystems.  相似文献   
109.
The entrepreneurial ecosystems literature has increasingly explored network relationships between different stakeholders, as well as the role of context. This article addresses the challenge of including a sport context in the entrepreneurial ecosystem literature thereby contributing to the sport entrepreneurship literature by bringing insights from entrepreneurship ecosystem research. In‐depth interviews of football stakeholders in the sport entrepreneurship ecosystem are conducted in terms of understanding the emergence of digital sport start‐ups. The issues raised help explore the changing nature of digital entrepreneurial ecosystems to take into account new sport technological advances. Mixed embeddedness theory is used as the conceptual foundation to understand sport digital entrepreneurial ecosystems. Key management practices are identified in terms of sport start‐ups participating in entrepreneurial ecosystems. The article concludes by making suggestions for future research.  相似文献   
110.
中国电力行业一直延续纵向分离的改革路径,继发电环节从一体化垄断结构中分离之后,2015年新一轮的电力体制改革又提出输配售电业务分离、推进电力市场化交易的目标。不同纵向结构下,电力产业链上下游企业的博弈均衡显示纵向分离改革可提高上游发电环节的竞争性,减少效率损失。进一步基于微观发电企业数据,通过双重差分及倾向得分匹配模型考察“厂网分开”这一准自然实验的效果,研究结果显示,纵向分离改革显著提升了发电企业的效率。现阶段应继续推进输配售分离改革,通过供给侧和需求侧的互动响应使上游发电环节的效率收益纵向传递,提高消费者福利。  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