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   2806篇
  免费   81篇
  国内免费   26篇
财政金融   465篇
工业经济   150篇
计划管理   669篇
经济学   666篇
综合类   202篇
运输经济   69篇
旅游经济   56篇
贸易经济   301篇
农业经济   90篇
经济概况   245篇
  2023年   42篇
  2022年   59篇
  2021年   98篇
  2020年   144篇
  2019年   89篇
  2018年   67篇
  2017年   111篇
  2016年   110篇
  2015年   84篇
  2014年   177篇
  2013年   285篇
  2012年   175篇
  2011年   232篇
  2010年   141篇
  2009年   147篇
  2008年   212篇
  2007年   177篇
  2006年   181篇
  2005年   92篇
  2004年   86篇
  2003年   51篇
  2002年   37篇
  2001年   33篇
  2000年   17篇
  1999年   22篇
  1998年   18篇
  1997年   4篇
  1996年   4篇
  1995年   2篇
  1994年   3篇
  1993年   2篇
  1992年   2篇
  1990年   2篇
  1988年   1篇
  1987年   2篇
  1985年   1篇
  1983年   1篇
  1982年   1篇
  1981年   1篇
排序方式: 共有2913条查询结果,搜索用时 15 毫秒
81.
External knowledge sharing and knowledge leakage often pose a strategic dilemma when firms conduct innovation activities. In this study, we focus on the positive and negative effects of this phenomenon. In particular, we empirically examine the effects of a firm׳s external knowledge sharing on its relative innovation performance under the contingencies of accidental and intentional leakage of business-critical knowledge. Results based on a survey of 150 Finnish technology-intensive firms show that external knowledge sharing has a positive effect on innovation performance, but high levels of accidental and intentional knowledge leakage by a firm׳s employees negatively moderate this relationship. These results contribute to the understanding of the potentially positive and negative issues related to external knowledge sharing and knowledge leakage, which have thus far remained empirically under-researched.  相似文献   
82.
Information sharing across organisations is critical to effectively managing the security risks of inter-organisational information systems. Nevertheless, few previous studies on information systems security have focused on inter-organisational information sharing, and none have studied the sharing of inferred beliefs versus factual observations. In this article, a multiagent collaborative model (MACM) is proposed as a practical solution to assess the risk level of each allied organisation’s information system and support proactive security treatment by sharing beliefs on event probabilities as well as factual observations. In MACM, for each allied organisation’s information system, we design four types of agents: inspection agent, analysis agent, control agent, and communication agent. By sharing soft findings (beliefs) in addition to hard findings (factual observations) among the organisations, each organisation’s analysis agent is capable of dynamically predicting its security risk level using a Bayesian network. A real-world implementation illustrates how our model can be used to manage security risks in distributed information systems and that sharing soft findings leads to lower expected loss from security risks.  相似文献   
83.
We examine whether stock liquidity exacerbates or mitigates managerial short-termism. Utilizing earnings management as a proxy for managerial short-termism, we establish three major findings. First, firms with liquid stocks engage in less accrual-based and real earnings management. Second, the effect of stock liquidity on earnings management is amplified for firms with high levels of managerial pay-for-performance sensitivity. Third, the positive association between the intensity of earnings management and firm cost of capital is evident only for firms with low stock liquidity. Our findings are consistent with the threat of blockholder exit as the main governance channel through which stock liquidity discourages opportunistic earnings management and mitigates managerial short-termism.  相似文献   
84.
加强工程设计方案优化已成为现代工程建设开展的重要工作,是控制工程成本、提高工程造价管理的关键。基于此,论述工程优化设计的影响因素与不足,提出搞好优化设计的几点建议。  相似文献   
85.
本文从管理者能力的视角出发,选取2010-2018年沪、深A股上市公司为样本,实证分析了管理者能力对债务契约的影响及其影响路径。研究证明:管理者能力越强,企业的债务期限结构越短、债务融资成本越低。进一步研究发现,在不同的法制环境中,二者的关系存在异质性,即管理者能力对债务期限结构、债务融资成本的影响在法制环境较高的地区较为显著。本文丰富了企业债务契约的影响因素,探寻了管理者能力影响债务期限结构、债务融资成本的路径。  相似文献   
86.
Grounded in a view of self-transcendence, leader humility is expected to influence employees to acquire and share knowledge for self-development. This study investigates how and when leader humility activates hospitality employees’ knowledge collection and knowledge donation. The dataset was built from 674 employees and 87 direct managers working in the Vietnam-based hotel organizations. Analyzed through multilevel structural equation approach, the data provided support for the positive relationships between leader humility and knowledge collection and donation behaviors among hospitality employees. The three dimensions of job crafting functioned as mediators for these relationships. Employees’ promotion focus played a moderating role for the relationships between leader humility and seeking resources and challenges, but did not interact with leader humility to impact job demands. The discussion on the implications for hospitality scholars and practitioners from the research findings is presented.  相似文献   
87.
基于信任理论,从不同角色视角探究各信任要素对分享经济行为意图的影响。通过构建分享经济信任机制概念模型以及实证检验发现:从需求方视角来看,对个体(供给方)3个维度(能力、正直和善意)的信任、对平台善意的信任以及对产品能力的信任对需求意图产生积极地影响。从供给方视角来看,对个体(需求方)能力的信任和对平台3个维度(能力、正直和善意)的信任对供给意图有正向的影响。需求方更关注人与人之间的信任,而供给方则更看重对平台的信任。通过进一步比较还发现,需求方对平台和个体(供给方)的信任聚焦于善意信任,但供给方则是侧重于对平台和个体(需求方)能力的信任。  相似文献   
88.
陈秋劲 《价值工程》2015,(2):228-229
本文立足国家发展终身教育,实现全民学习、终身学习,创建学习型社会已成为一项基本国策。通过对国内外终身学习数字化资源整合与共享现状进行分析,力图提取有益的信息,存在的问题,甄别出可用的模式,适合的策略,以应用于终身教育的实践中。本文从通过调研,在多方面进行探索,提出了几点建议,希望能对各类数字化资源整合与共享应用有所启迪。  相似文献   
89.
Market characteristics, including intrinsic demand and customer sensitivity on price and product performance level, are distinct at different markets. Comparisons of various product development strategies in one market or two geographically separated markets are conducted for three classes of products: development intensive products (DIPs) with constant unit cost, marginal cost-intensive products (MIPs) with constant fixed cost, and marginal and development intensive products (MDIPs) with non-constant unit cost and fixed cost. Results show that larger demand size, less customer sensitivity on price and/or more sensitivity on performance level lead to more profit, a higher sale price and a not-lower product performance. The customer reservation or the saturation performance level should be generally adopted though the optimal performance level does exist occasionally. Unit cost and/or fixed cost must increase in performance at an increasing rate for the existence of one optimal performance level. Due to the impact of demand size, one high-end (low-end) MDIP or DIP could be introduced into one low-end (high-end) market at a different price if the demand size is significantly large in the low-end market. For DIPs, offering one niche high-end product is not worse than offering the low-end product into two markets. For MIPs with negligible fixed cost, the product line strategy is not worse than the standard product development strategy. Additionally, the product cost reduction approach adopted in one product line has significant effects on the best product development strategy and sequence.  相似文献   
90.
The industries in which listed firms are concentrated in less developed equity markets are not random, nor entirely explained by the underlying composition of production. Listed firms and market capitalization are disproportionately concentrated in industries with low beta (measured with their beta with the market portfolio in the U.S.). We document a strong positive relationship between the industry-weighted country beta and the degree of market development across countries. Recent IPO activity confirms the result since new listings have higher betas than the average firm already in the market.  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