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   8564篇
  免费   217篇
  国内免费   54篇
财政金融   1051篇
工业经济   510篇
计划管理   1854篇
经济学   1520篇
综合类   906篇
运输经济   119篇
旅游经济   85篇
贸易经济   1018篇
农业经济   493篇
经济概况   1258篇
信息产业经济   6篇
邮电经济   15篇
  2024年   9篇
  2023年   57篇
  2022年   139篇
  2021年   237篇
  2020年   223篇
  2019年   138篇
  2018年   110篇
  2017年   211篇
  2016年   158篇
  2015年   267篇
  2014年   332篇
  2013年   551篇
  2012年   729篇
  2011年   902篇
  2010年   771篇
  2009年   631篇
  2008年   696篇
  2007年   571篇
  2006年   609篇
  2005年   584篇
  2004年   166篇
  2003年   177篇
  2002年   143篇
  2001年   127篇
  2000年   53篇
  1999年   38篇
  1998年   25篇
  1997年   31篇
  1996年   27篇
  1995年   17篇
  1994年   7篇
  1993年   10篇
  1992年   8篇
  1991年   8篇
  1990年   2篇
  1989年   4篇
  1988年   7篇
  1987年   4篇
  1986年   5篇
  1985年   6篇
  1984年   8篇
  1983年   7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8835条查询结果,搜索用时 15 毫秒
1.
创新要素配置在投入产出两个环节中生成大量不完全技术信息,投入产出效率随机变动更加明显。从投入产出数据集合中提炼共同因子,与不可观测变量构成预测器,建立因子增广向量自回归模型(FAVAR),分析随机变动方差构成,测度投入产出效率随机变动程度。随机变动效应包括水平效应、稳定性效应和规模效应。投入产出效率自回归扰动项表示随机变动程度,将其细分为共同因子,计算预测器方差及其与投入产出效率的协方差。基于669家上市公司月度、季度、半年度和年度技术研发数据,比较分析投入产出效率随机变动程度及形成原因,引入脉冲响应法分析变量方差构成与变动特征,提出相关政策建议。  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.
以市场营销学课程为例,探索构建应用型本科高校线上教学的质量评价体系,有助于推动线上教学高效提质发展。通过综合15位市场营销教学领域专家教授的评价意见,结合市场营销学课程线上教学基本要求,运用层次分析法,设计出市场营销学线上教学质量评价指标体系。该评价体系兼顾师资队伍、教学理念、教学方法、教学目标、教学过程、教学资源、教学活动、教学评价与反馈等标准,对应用型本科高校线上教学活动的开展和质量把控提供一定的借鉴价值。  相似文献   
4.
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   
5.
We exploit an influential 1991 Delaware court ruling to examine simultaneously two types of conservatism that play important roles in resolving creditor–owner agency conflicts: contracting conservatism and reporting conservatism. The ruling expanded managerial fiduciary duties in favor of creditors for Delaware-incorporated firms in the vicinity of insolvency. In those firms, following the ruling, debt contracts are less likely to include conservative adjustments to accounting numbers used for covenant compliance (i.e., contracting conservatism decreases), while public financial reporting becomes more conservative (i.e., reporting conservatism increases). The decrease in contracting conservatism is concentrated in firms that exhibit a greater increase in reporting conservatism, suggesting that reporting conservatism is more cost-effective in resolving agency conflicts. In addition, the substitution effect is more pronounced in firms facing greater business uncertainty and firms with greater board independence.  相似文献   
6.
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   
7.
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   
8.
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   
9.
Review of Accounting Studies - We investigate whether firms change their non-GAAP reporting practices after debt covenant violations. We find that the likelihood that a firm will disclose non-GAAP...  相似文献   
10.
Using data from one of Australia's largest thoroughbred auction houses, we investigate the price determinants of thoroughbred yearlings sold at auction. We include novel key variables to construct hedonic pricing models and examine the relative role of stud fees compared to the wide range of attributes in the pricing of yearlings. We find that the price effect of stud fees is influenced by the value buyers place on both the characteristics of sires and the characteristics of sire side siblings. The findings imply that the quality of dams a sire has been matched within the breeding market has consequential effects on yearling prices through the sire's stud fee and progeny.  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