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   27002篇
  免费   1100篇
  国内免费   514篇
财政金融   1072篇
工业经济   1069篇
计划管理   5895篇
经济学   4798篇
综合类   4442篇
运输经济   277篇
旅游经济   680篇
贸易经济   3066篇
农业经济   3210篇
经济概况   4107篇
  2024年   43篇
  2023年   333篇
  2022年   457篇
  2021年   693篇
  2020年   677篇
  2019年   412篇
  2018年   386篇
  2017年   521篇
  2016年   568篇
  2015年   698篇
  2014年   1752篇
  2013年   2003篇
  2012年   2292篇
  2011年   3026篇
  2010年   2393篇
  2009年   1922篇
  2008年   2064篇
  2007年   1750篇
  2006年   1745篇
  2005年   1234篇
  2004年   918篇
  2003年   704篇
  2002年   505篇
  2001年   594篇
  2000年   349篇
  1999年   208篇
  1998年   88篇
  1997年   61篇
  1996年   50篇
  1995年   49篇
  1994年   11篇
  1993年   20篇
  1992年   8篇
  1991年   3篇
  1990年   2篇
  1989年   1篇
  1988年   3篇
  1987年   3篇
  1986年   2篇
  1985年   9篇
  1984年   16篇
  1983年   13篇
  1982年   14篇
  1981年   6篇
  1980年   5篇
  1979年   2篇
  1978年   3篇
排序方式: 共有10000条查询结果,搜索用时 187 毫秒
21.
We contribute to the finance-growth nexus literature by showing that credit origin, bank ownership, type of credit, and bank type matter in economic growth. We use a unique dataset covering 5555 cities in Brazil, with granular information on credit characteristics. We find that non-earmarked credit to the corporate sector is associated with municipal economic growth more strongly than earmarked credit, despite the increase in the relevance of the latter after the global financial crisis. We also find that the type of credit—whether the loans are general purpose or for a specific purpose—is associated with economic growth in different ways. Overall, credit provided to the corporate sector by domestic private banks is correlated with higher economic growth rates. In contrast, the relationship between credit from state-owned banks and economic growth becomes statistically significant only after the crisis. Although we follow the finance-growth literature in our empirical exercises using internal instruments in generalized method of moments (GMM) estimations, we also conduct robustness tests using two additional external instruments: the number of complaints filed against each bank and local credit accessibility. Our findings with external instruments are the same with respect to the use of traditional internal instruments in GMM estimations.  相似文献   
22.
我们已经进入了一个全新的大数据信息化时代,充满了更多的机遇与挑战。大数据及数字经济的出现极大程度地改变了传统技术及工作思维的方式。数字经济是继工业和农业之后的又一大经济形态,为社会的经济增长提供了新的动力。通过分析电网行业传统的科学技术及作业方式,论文简要阐述了基于大数据信息化发展下电网的影响,并认为信息化技术的发展对于数字经济有着至关重要的影响及重要性。最后论文讨论了数字经济发展存在的问题及方向。  相似文献   
23.
2019 is the 70 th anniversary of the founding of the people’s Republic of China and the key year for implementing the rural vitalization strategy.Summarizing the great achievements made by agriculture and rural areas in the past 70 years will have an important theoretical value for promoting the modernization of agriculture and rural areas and the strategy of rural revitalization.Under such circumstances,the 10 th member congress and 2019 academic seminar of CAAE was successfully held in Beijing.The key to promote rural revitalization lies in deepening rural reform,focus on the property right system and market-oriented allocation of factors,and establish a system and mechanism of free circulation and equal exchange between urban and rural areas.In order to promote the organic connection between small-scale peasant and the modern agriculture,it is necessary to speed up the development of agriculture social service industry.Finally,it is suggested to adhere to the two-wheel drive of rural revitalizationand new urbanization,promote the effective coverage of rural public services,and improve the rural governance mode of combining autonomy,rules of law and virtue.  相似文献   
24.
Increasing popularity of economic experiments for policy impact analysis has led to an on-going debate about the suitability of students to substitute professionals as experimental subjects. To date, subject pool effects in agricultural and resource economics experiments have not been sufficiently studied. In order to identify differences and similarities between students and non-students, we carry out an experiment in the form of a multi-period business management game that is adapted to an agri-environmental context. We compare the compliance behaviour of German agricultural students and German farmers with regard to water protection rules and analyse their responses to two different green nudge interventions. The experimental results reveal that the direction of the response to the policy treatments is similar. Even unexpected behaviour could be reproduced by the student sample. Nevertheless, the magnitude of the treatment effects differed between the two samples. This implies that experimenters in the field of agricultural and resource economics could use the subject pool of students to analyse the direction of nudge policies. If predictions should be made about the magnitude effects, we suggest using a professional subject pool.  相似文献   
25.
We study the pre-deal characteristics of state-owned banks acquiring other companies, relative to their private counterparts. We build a unique international data-set of 3682 deals in the years 2003–2013. Econometric results highlight that those state-owned banks that are acting as acquirers have an ex-ante performance similar to their private benchmarks. The results are driven by the role of development banks. This new finding points to the recent evolution of some types of contemporary state-owned financial players.  相似文献   
26.
《Economic Systems》2021,45(4):100882
This paper investigates nonlinear relationships between terms of trade volatility (totvol) and economic growth in 14 Latin American economies from 1997 to 2014. In the 2000s, Latin American countries experienced accelerated economic growth often attributed to commodity price booms. We split the sample into two regimes based on totvol thresholds determined by bootstrap techniques. Fixed effects, instrumental variable and dynamic panel regressions address endogeneity in trade growth, subject to traditional economic channels such as domestic investment, population growth, exchange rate, government size, and institutions. We find statistically significant thresholds and stronger trade-growth links during the 2000s commodity boom and in larger economies.  相似文献   
27.
[目的]探析开都河流域在未利用地开发过程中生态风险指数的变化特征,为西北干旱区内陆河流域土地利用结构调整与生态保护修复协调发展提供建议。[方法]文章采用PSR模型构建基于14个指标框架的流域未利用地开发生态风险评价指标体系;通过测度综合生态风险指数法进行时空视角的特征变化与格局划分评价;并运用灰色预测模型前瞻性模糊预测该区域未来4年的生态风险变化态势。[结果]2009—2016年开都河流域未利用地开发生态风险整体呈波动上升趋势,生态风险程度由较低下降至低生态风险水平,随后上升至一般程度。这是因为土地开发利用对生态环境造成压力,但在政府相应生态保护政策的出台落实下又逐步缓解,生态系统结构和功能好转明显,抵御风险能力得以提升。预测结果显示2017—2020年开都河流域生态风险将由一般生态风险程度上升至较高程度,因此需要采取适当的管理措施来消减生态风险发生的可能性。[结论]开都河流域作为沙漠中典型的绿洲生态系统,生态环境较为脆弱,通过未利用地的差别化开发、鼓励零星分散的开发模式以及细分不同地类开发的生态补偿设置等方式路径,以期缓解降低干旱区内陆河流域未利用地开发带来的生态风险。  相似文献   
28.
建设现代化经济体系是破解新时代中国特色社会主义主要矛盾的根本途径。面对即将到来的“十四五”时期,蚌埠既面临安徽省内激烈的区域竞争,又担负着建设“两个中心”的重任,必须加快建设符合现代化要求的产业体系和经济体制,以产业发展为抓手,以科技创新为引擎,以园区建设为载体,以优化环境为保障,加速构建支撑蚌埠高质量发展的现代化经济体系。  相似文献   
29.
进入"双高时代",我们距离新时代高等职业教育"舞龙头"的教学还有问题和"短板",应该改造教学方法和学习与研究制度。在剖析改造教学原因的基础上,厘清看待教学中存在问题的两种互相对立的态度,提出改造教学的革故鼎新路径,如强化"课堂教学为王"的意识,强化学习与专业研究,强化教学的职业素养,强化教师的课堂教学治理。  相似文献   
30.
基于1990—2017年行业面板数据,采用超越对数生产函数对服务业各细分行业TFP增长率进行分解和测度,揭示我国服务业内部结构生产率演化进程及其异质性现象,并采用可导性对数方差分解法、VAR协整模型和误差修正模型(VECM)考察TFP及其构成部分对服务业行业发展差距的贡献度,评估其异质性作用于行业发展差距的长短期效应。研究发现,在服务业内部结构演化过程中,TFP、技术进步和技术效率改进呈逐步下降趋势,其中技术进步是推动TFP增长的核心,规模效率改进发展水平一直滞后,配置效率改进在服务业发展初期较为滞后,但水平逐步提升;生产性和生活性服务业行业间TFP及构成部分异质性在演化过程中呈下降趋势,且生活性服务业行业间异质性程度要小于生产性服务业,行业间异质性变化幅度最大的是规模效率改进,技术效率改进异质性波动程度最小;TFP异质性是造成行业间发展差距扩大的主要原因,其中技术效率改进是主导因素,且该效应的发挥只有在长期具有显著性。  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