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   8920篇
  免费   237篇
  国内免费   24篇
财政金融   1193篇
工业经济   610篇
计划管理   1667篇
经济学   1647篇
综合类   867篇
运输经济   91篇
旅游经济   73篇
贸易经济   987篇
农业经济   647篇
经济概况   1362篇
信息产业经济   8篇
邮电经济   29篇
  2024年   10篇
  2023年   85篇
  2022年   154篇
  2021年   248篇
  2020年   227篇
  2019年   172篇
  2018年   149篇
  2017年   234篇
  2016年   180篇
  2015年   210篇
  2014年   344篇
  2013年   527篇
  2012年   688篇
  2011年   958篇
  2010年   785篇
  2009年   596篇
  2008年   661篇
  2007年   603篇
  2006年   673篇
  2005年   637篇
  2004年   165篇
  2003年   179篇
  2002年   186篇
  2001年   180篇
  2000年   64篇
  1999年   57篇
  1998年   29篇
  1997年   35篇
  1996年   22篇
  1995年   15篇
  1994年   8篇
  1993年   13篇
  1992年   7篇
  1991年   6篇
  1990年   3篇
  1989年   4篇
  1988年   7篇
  1987年   4篇
  1986年   4篇
  1985年   6篇
  1984年   9篇
  1983年   8篇
  1982年   4篇
  1981年   3篇
  1980年   2篇
  1979年   7篇
  1978年   2篇
  1976年   2篇
  1973年   2篇
  1971年   4篇
排序方式: 共有9181条查询结果,搜索用时 138 毫秒
1.
农机社会化服务采纳、禀赋差异与农村经济相对贫困缓解   总被引:1,自引:0,他引:1  
进入以缓解相对贫困为重点的后扶贫时代,农村经济相对贫困问题仍不容忽视。农机社会化服务作为小农户与现代农业有机衔接的桥梁,对于推进乡村振兴战略和脱贫攻坚有序衔接具有重要作用。文章讨论的核心议题是农机社会化服务采纳如何缓解农村经济相对贫困,并尝试建立了“农机社会化服务采纳——禀赋差异缩小——农村经济相对贫困缓解”的理论分析框架。为此,文章首先对农机社会化服务采纳影响农村经济相对贫困的作用机制进行了理论分析,然后利用2750份河南省农户问卷调查数据,运用Logit模型,实证检验农机社会化服务采纳对农村经济相对贫困的影响,并通过替代核心自变量和变更样本的方法进行稳健性检验,运用PSM模型和IVProbit模型以及ERM模型进行内生性讨论,最后通过中介效应模型对其作用机制进行验证。结果表明,农机社会化服务采纳对农村经济相对贫困具有显著负向影响,缓解了农村经济相对贫困。考虑内生性后,结论仍具有稳健性。进一步的机制验证发现,农机社会化服务采纳通过缩小劳动力禀赋差异和技术禀赋差异,缓解农村经济相对贫困,劳动力禀赋差异缩小和技术禀赋差异缩小的中介效应占比分别为21.22%和7.36%。可见,应将完善农机社会化服务供需体系纳入农户相对贫困治理机制考虑范畴,引导农户从传统家庭化生产转向现代社会化生产,扩大农机社会化服务采纳范围;同时完善就业服务等相关配套体系以吸纳释放的弱劳动力,促进农户收入增长,缓解农村经济相对贫困。  相似文献   
2.
Most development projects encounter a highly uncertain entitlement process that is largely uncontrollable by developers. In this study, entitlement is modeled as a separate stage within a compound real option, where developers begin with minimal control (maximum risk) and each successful stage increases control (decreases risk). We solve the model analytically, provide three‐dimensional numerical comparisons, and empirically test the model's predictions using hand collected rezoning petitions. Our main result refines the classic development option model: developers first invest early (secure entitlements) in order to obtain the option to subsequently delay investment (construct the optimal building at the optimal time).  相似文献   
3.
本文考察高管对个人社会关系的依赖是否对上市公司的信息环境产生冲击;具体的,本文系统论证了高管校友关系和上市公司信息披露的重要载体—管理层业绩预测之间的关系.结果显示,当公司与其供应商的高管之间存在校友关系或校友关系更广泛时,公司发布管理层业绩预测的概率和频数均显著下降,即高管校友一定程度上取代了业绩预测,成为了供应链上的信息流通渠道.进一步分析显示,当公司的私有信息成本较高或经营环境更不确定时,校友关系对业绩预测的替代作用更强;而当供应商议价能力较强时,这种替代作用显著下降.此外,本文发现高管校友关系也显著降低了业绩预测发布的自愿性和及时性.最后,本文发现校友关系引起的业绩预测披露减少,削弱了外部信息使用者获取公司层面信息的程度,表现为股价同步性和分析师预测分歧度加大.本文结果表明,高管对个人社会关系的依赖降低了上市公司的信息环境质量,可能使中小投资者处于更弱势的地位,一定程度上损害了市场公平性.本文将个人社会关系的经济影响拓展到信息环境领域,为社会关系如何影响公开信息披露行为提供了新的经验证据.  相似文献   
4.
Drawing upon token theory and critical mass theory, this study examines whether all female directors are equally considered as tokens. We argue that inside female directors are less likely than outside female directors to be considered as tokens because they are more powerful and influential. Using a 10-year sample of Chinese publicly listed firms on the Shanghai or Shenzhen Stock Exchanges from 2008 to 2017, we find that even one inside female director can make a significant contribution to corporate social responsibility (CSR), while outside female directors do not have a positive effect on CSR until their number reaches the critical mass (i.e., three). The results suggest that the predictions of token theory and critical mass theory vary across female director types. These findings contribute to the current literature by integrating female director typology with their numerical representation to explain their token status.  相似文献   
5.
Valuation ratios divide stock price by accounting metrics such as earnings, earnings growth, and book value. This study adapts the general valuation framework in Ohlson and Juettner-Nauroth (2005) and Ohlson (2005) to present a unified approach for developing valuation ratios based on fundamentals, referred to as fundamental valuation ratios. One starts with a valuation model that is driven by an accounting metric a and its abnormal growth, then divides the valuation model by a to get a fundamental valuation ratio. For any valuation ratio, one can find a corresponding fundamental valuation ratio, as long as the valuation model is based on the same metric a as the valuation ratio denominator.  相似文献   
6.
Major changes are underway in the U.S. retail banking sector toward heavy investments in technology and fewer in personnel. Using the 2017 survey of household economics and decision‐making (SHED) (n = 11,359), we examine the relationship between saving behavior related to emergency, long‐term and periodic expenses and personal, technological, and hybrid bank account access methods. Binary logistic regression models were used to estimate the odds of reporting various saving behaviors in relation to various banking access methods. Findings suggest that the personal access method is positively associated with savings behavior for periodic expenses for the general population, and negatively associated with emergency savings in people with lower education attainment. Technology is associated with all types of saving behavior, while the hybrid access method is associated only with saving for periodic expenses. As investments in self‐service technology increase, the importance of access methods to savings behavior must be considered.  相似文献   
7.
Studies on the determinants of entrepreneurship emphasize that challenged adults tend to become entrepreneurs. However, research has not addressed the childhood origins surrounding the propensity for entrepreneurship. This article links childhood adversity to the propensity of individuals to become migrant entrepreneurs later in life. We test hypotheses derived from this theory in the context of whether, and when, children who survived the Great Chinese Famine of 1959–1961 became migrant entrepreneurs. Results strongly indicate that those who survived greater hardship during the Famine are more likely to become entrepreneurs, especially when they were younger during the famine years. We also find that being younger at the time of migration increased the likelihood of becoming entrepreneurs in their new locale. Overall, this study casts light on why, how and when childhood adversity shapes the propensity for entrepreneurship.  相似文献   
8.
The purpose of this study is to elaborate the structural relationships among the experiential quality dimensions, experiential trust, emotional attachment, experiential image, switching experience, experiential satisfaction, and experiential loyalty from the green perspective. The study findings are based on structural equation modeling (SEM) analysis of a convenience sample of 560 customers at one green restaurant in Taipei City, Taiwan. The findings show that investing resources in an increase in the experiential quality dimensions and a decrease in green switching experience is useful to enhance green experiential trust, green emotional attachment, green experiential image, green experiential satisfaction, and green experiential loyalty.  相似文献   
9.
基于嵌入性视角,分别引入知识转移、合作模式作为中介变量和调节变量,深入探究关系质量影响企业知识创造绩效的内在机理。利用277份来自全国多地的制造业及高新技术企业调查问卷,采用多元回归方法进行实证研究。结果表明:经济型和社会型关系质量均正向影响企业知识创造绩效;社会型关系质量通过元素知识和架构知识转移正向影响企业知识创造绩效。在契约治理模式下,经济型关系质量更倾向于通过元素知识转移正向影响企业知识创造绩效;在股权治理模式下,社会型关系质量更倾向于通过架构知识转移正向影响企业知识创造绩效。  相似文献   
10.
Review of Industrial Organization - In this paper, we analyze a recent antitrust case of abuse of dominance that was decided by a Chinese administrative enforcement agency under China’s...  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