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   1817篇
  免费   27篇
财政金融   467篇
工业经济   55篇
计划管理   390篇
经济学   325篇
综合类   165篇
运输经济   12篇
旅游经济   32篇
贸易经济   234篇
农业经济   21篇
经济概况   143篇
  2024年   1篇
  2023年   22篇
  2022年   39篇
  2021年   51篇
  2020年   81篇
  2019年   37篇
  2018年   29篇
  2017年   48篇
  2016年   46篇
  2015年   33篇
  2014年   95篇
  2013年   107篇
  2012年   133篇
  2011年   192篇
  2010年   114篇
  2009年   112篇
  2008年   138篇
  2007年   142篇
  2006年   113篇
  2005年   72篇
  2004年   50篇
  2003年   32篇
  2002年   25篇
  2001年   24篇
  2000年   16篇
  1999年   10篇
  1998年   14篇
  1997年   8篇
  1996年   12篇
  1995年   1篇
  1994年   4篇
  1993年   6篇
  1992年   8篇
  1991年   6篇
  1990年   5篇
  1989年   5篇
  1988年   7篇
  1987年   2篇
  1984年   3篇
  1983年   1篇
排序方式: 共有1844条查询结果,搜索用时 15 毫秒
1.
待孵化的技术创业型企业同时具有概念性技术向差异化产品转化的高风险与产品异质性被认同后溢价评估的高收益特点,导致其投资者多处于隔岸观火却欲罢不能的的孵化投资矛盾中。对孵化资本实施有效的风险管控,成为吸引外部资本投入的关键。基于此,选择在可创概念选育与技术创业孵化领域探索出高成功率路径的概念证明中心、YCombinator和创新工场为研究案例,分析其在创业项目筛选、孵化资金运营等关键环节的风险管控方式,以期完善我国孵化资本管控理论、助力我国商业孵化器提高资金风险管控能力、促进外部资本投入。  相似文献   
2.
Consumers often base their judgments on a no-pain, no-gain principle—that is, one must pay a cost in order to achieve a beneficial outcome. For example, they infer the quality of a product from its price and judge a bad-tasting medicine to be more effective than a tasty one. Although the use of this principle to infer the value of a product or service has been observed in several domains, the processes that underlie its use have not been fully explored. We find that when people feel out of control, they tend to use the principle because it exemplifies a causal relationship between actions and outcomes and endorsing it reaffirms their belief that they have control over the outcomes of their behavior. Our findings have implications for how marketers might position products and services to attract consumers who perceive themselves as having different levels of control.  相似文献   
3.
We analyze how research and development (R&D) outsourcing influences product innovation. We propose a separation between learning from R&D outsourcing, whereby the firm improves its ability to innovate by using outsourced R&D directly in new products, from learning by R&D outsourcing, whereby the firm indirectly uses outsourced R&D by integrating it with internal R&D to create new products. Building on the knowledge-based view, we argue that learning from R&D outsourcing is likely to have an inverse U-shaped relationship with product innovation, because the initial benefits of using outsourced component R&D knowledge to innovate products is eventually outweighed by the hollowing out of the firm's ability to innovate. In contrast, we propose that learning by R&D outsourcing is likely to have a U-shaped relationship with product innovation, because the initial challenges of integrating internal and external R&D are eventually overcome, resulting in more innovations. Finally, we distinguish between domestic and foreign R&D outsourcing and propose a liability of foreignness in R&D outsourcing as it has a lower impact on new products than domestic R&D outsourcing. The empirical analysis shows that outsourced R&D has an inverted U-shaped relationship with the number of new products, while the interaction between outsourced R&D and internal R&D has a U-shaped relationship with the number of new products. It also shows that domestic outsourced R&D has a higher positive impact on the number of new products than foreign outsourced R&D.  相似文献   
4.
家族企业对社会情感财富目标的追求是其区别于非家族企业的重要特性,社会情感财富目标与企业经济利益间冲突对企业R&D投入的影响不容忽视。以社会情感财富为理论基础,基于573家上市家族企业2011-2015年的面板数据,分析受市场化程度影响时,家族涉入情境下信息透明度对企业R&D投入的影响。结果显示:信息透明度可以有效缓解信息不对称和代理冲突,促进企业R&D投入;家族控制对R&D投入有消极影响;当企业信息透明度较高时,会抑制家族所有者为个人谋取私利的动机,进而增强其对企业R&D投资的积极作用。在市场化程度更高、产权保护力度较大的地区,信息透明度会缓解家族控制权对R&D投入的消极作用。  相似文献   
5.
This study investigates the relationship between internal pyramid structure and performance of Chinese, Pakistani, Malaysian pyramidal firms, the effect of judicial efficiency and minority investor protection on this relationship. The results show that the pyramid structure of Pakistani firms is more complicated than Chinese and Malaysian firms, both vertically and horizontally. The study finds that the impact of control layers on performance is negative and stronger than control chains. Moreover, the results illustrate that the effect of control layers on performance at Chinese firms is negative but lower than at Pakistani and Malaysian firms. However, control chains have insignificant association with performance at Chinese pyramid firms. We find that efficient judiciary abates the negative impact of control layers and chains on performance. Our results reveal that in the absence of efficient courts the minority investors’ protection have insignificant impact on the association between internal pyramid structure and firms’ performance.  相似文献   
6.
刘方 《新疆财经》2020,(1):27-38
本文选取我国大陆31个省(市、自治区)2007年-2018年的面板数据,综合运用系统GMM和差分GMM估计方法,实证检验了沿海与内陆、沿边与非沿边、享受优惠政策高与低、金融控制强与弱等4类不同省区金融发展对经常项目余额的影响。研究结果表明:使用全部样本估计时,金融发展显著负向影响经常项目余额,这一结论经稳健性检验后依然成立。使用不同区域的子样本估计时,金融发展对沿海省区、非沿边省区、享受优惠政策高以及金融控制弱省区的经常项目余额的抑制作用较大,而在其他省区作用较小。因此,各地区应充分利用金融手段来调整进出口余额,以保证经常项目的持续平衡。  相似文献   
7.
在构建以国内大循环为主体、国内国际双循环相互促进的新发展格局下,高效协同的区域创新体系有助于将粤港澳大湾区三地建设成为具有全球影响力的科技创新中心。通过构建创新生态系统综合评价指标体系,采用耦合协调模型和空间计量模型,实证检验大湾区10个城市2007-2019年创新生态系统内部耦合协调水平、时空跃迁特征以及收敛性。研究发现,大湾区整体及各城市耦合协调度呈上升趋势,基本实现从失调衰退区到协调过渡区的转化,具体可划分为4个等级层次;大湾区创新生态系统协调耦合度存在显著的绝对β与条件β收敛趋势,即最终收敛于同一稳态水平,且城市间差距逐渐缩小。其中,经济发展水平、对外交流水平、人力资本水平对创新生态系统协调耦合度起显著正向作用。  相似文献   
8.
Terrorist attacks occur mostly at public service-oriented sites. Consequently, their victims are likely to be customers. The present study explores how customers instinctively react toward the reality of terror in a matrix of 2 × 2 aspects concerning terror circumstances: temporal proximity (brief or long) and physical proximity (close or remote) from the terror event. In qualitative in-depth interviews, customers from France and Israel were requested to share their instinctive reactions and coping strategies when approaching hospitality (hedonistic) and transportation (utilitarian) services. Participants (N = 47) comprised customers having a protracted acquaintance with persistent terror threats. The analysis identified differences in reactions, subject to temporal and physical proximities. When terror attacks are physically close, customers’ emotions, cognitions, and behaviors undergo modification with time. However, when terror attacks occur at a location remote from the customer, customers’ emotions and cognitions, but not their behavior, change with time. These reactions were comparable for the two service contexts. Practical implications were elaborated to enable service establishments (i.e., hospitality and transportation) to design and manage their operations for the short and long term to assist customers in the difficult era of terror.  相似文献   
9.
企业员工配置是企业内部管理的重要一环,经济政策不确定性是否会影响企业员工配置?本文以员工数量衡量企业员工配置,利用2010-2018年沪深A股上市企业数据和经济政策不确定性指数建立面板数据模型,考察经济政策不确定性对企业员工配置的影响,实证研究发现:经济政策不确定性会显著增加企业员工配置,且该影响经更换变量、调整样本容量以及内生性处理后依旧显著,该反应在还债能力较弱、盈利能力较差、股权制衡度较高、地区经济发展水平较低的企业中更为明显。文章的研究结论对于企业管理和宏观经济管控有一定的参考价值。  相似文献   
10.
Our findings extend the entrepreneurship literature by highlighting the mechanism through which self-efficacy can hinder rather than enhance performance in entrepreneurial settings. Using two complementary experimental studies and a third quasi-experimental field study on equity crowdfunding decisions, we demonstrate that self-efficacy is negatively related to decision-making performance. This relationship is mediated by reduced searching effort. Our research also indicates that high self-efficacy funders tend to exhibit a “crowd bias” whereby they over-weight the opinions of the crowd, increasing the likelihood that they will fund poor quality ventures when such ventures are favored by the crowd. We introduce the term crowd bias and explore its effects, establishing that social indicators in the form of crowd cues can exasperate the negative effects of self-efficacy.  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