全文获取类型
收费全文 | 34728篇 |
免费 | 1638篇 |
国内免费 | 642篇 |
专业分类
财政金融 | 2829篇 |
工业经济 | 1330篇 |
计划管理 | 8220篇 |
经济学 | 4990篇 |
综合类 | 6927篇 |
运输经济 | 247篇 |
旅游经济 | 324篇 |
贸易经济 | 4089篇 |
农业经济 | 3346篇 |
经济概况 | 4705篇 |
信息产业经济 | 1篇 |
出版年
2024年 | 65篇 |
2023年 | 340篇 |
2022年 | 457篇 |
2021年 | 696篇 |
2020年 | 808篇 |
2019年 | 483篇 |
2018年 | 441篇 |
2017年 | 525篇 |
2016年 | 611篇 |
2015年 | 967篇 |
2014年 | 2455篇 |
2013年 | 2180篇 |
2012年 | 3055篇 |
2011年 | 3796篇 |
2010年 | 3022篇 |
2009年 | 2705篇 |
2008年 | 3026篇 |
2007年 | 2669篇 |
2006年 | 2579篇 |
2005年 | 1850篇 |
2004年 | 1386篇 |
2003年 | 961篇 |
2002年 | 602篇 |
2001年 | 480篇 |
2000年 | 347篇 |
1999年 | 171篇 |
1998年 | 84篇 |
1997年 | 67篇 |
1996年 | 41篇 |
1995年 | 20篇 |
1994年 | 29篇 |
1993年 | 25篇 |
1992年 | 18篇 |
1991年 | 7篇 |
1990年 | 9篇 |
1989年 | 6篇 |
1988年 | 1篇 |
1987年 | 3篇 |
1986年 | 1篇 |
1985年 | 4篇 |
1984年 | 6篇 |
1983年 | 5篇 |
1982年 | 1篇 |
1981年 | 3篇 |
1980年 | 1篇 |
排序方式: 共有10000条查询结果,搜索用时 250 毫秒
1.
This article examines non-farm employment in the context of Chinese rural institutional change, based on evidence from discrete-time logistic models for event history analysis using the Life History and Social Change survey. We find the transition to non-farm sector rose rapidly during the Great Leap Forward and market reform, while the Cultural Revolution saw it reach the lowest ebb. While male advantage prevailed exclusively during the Cultural Revolution and early marketization, education possessed a stable positive effect in all historical periods. Although the returns to different kinds of political capital vary along with institutional dynamics, intergenerational reproduction was greatly reduced after the Cultural Revolution. 相似文献
2.
While the tourism sector shifts towards digital transformation, Destination Management Organisations (DMOs) often struggle to adapt to their changing technological environment. This study explores the antecedents of digital collaboration and develops a framework for micro-DMOs to enhance effective destination management through digital technologies. An integrated sequential qualitative approach was adopted by conducting multi-phase interviews, in addition to designing and trialling a real-world trial digital platform. The research provides empirical evidence that digital collaboration is essential for micro-DMOs, necessitating them to transform their current “websites” into digital platforms which act as a hub for business stakeholders to actively be involved in. Antecedents of successful digital collaboration include mutuality, trust, control, and leadership which may be manifested differently from non-digital collaboration. Additionally, the study identifies three aspects for digital collaboration; marketing, networking and knowledge sharing that demands specific attention. Our results have theoretical, methodological, and practical implications for academia, industry and policymakers. 相似文献
3.
Drawing on the information system success model and perceived value theory, we develop a research model to examine factors that may affect user satisfaction and loyalty of mobile payment platforms. Empirical data was collected from users using Alipay and WeChat Pay in China, and a total of 410 valid responses were gathered for data analysis. The results show that the multi-dimensional formative perceived value including benefits and sacrifice is important determinant of mobile payment user satisfaction and loyalty. The three benefit dimensions of functional value, experiential value and social value are more important value components than the two sacrifice dimensions of risk and cost, and experiential value is the dominant component of mobile payment users' value perception. As for the antecedents of perceived value, system quality and service quality mainly affect perceived benefits, while information quality has a greater impact on risk. The research results provide the contribution of specific value dimensions to users' perceived value and the impact of quality characteristics on specific perceived value for mobile payment platform providers, thus helping them to adopt effective strategies to strengthen market competitiveness and retain existing users. 相似文献
4.
5.
中国银保监会出台联合授信管理制度旨在抑制企业过度融资行为,提高资金使用效率。为检验该制度是否达到预期效果,采用2014—2018年沪深A股上市公司样本,运用非平衡面板数据回归实证考察联合授信机制对企业非效率投资的影响,发现联合授信对企业的非效率投资(包含投资不足和投资过度)呈现显著抑制效应,其中联合授信对投资过度的抑制效应最大。进一步研究发现,相较于国有、大规模、低负债、高盈利等异质属性的企业,联合授信对非国有、小规模、高负债、低盈利等属性企业的非效率投资(尤其是投资过度)抑制效应更为显著。 相似文献
6.
装配式建筑供应链的运作存在很多不确定性。为提高供应链管理效率,促进建筑业的发展,运用供应链运作参考(SCOR)模型对装配式建筑供应链脆弱因子进行识别,将装配式供应链系统划分为6个子系统;通过系统动力学(SD)模型对供应链脆弱性进行仿真。结果表明,装配制造流程是脆弱性最大的子系统,整个供应链的脆弱性随着建筑项目的推进而增大。 相似文献
7.
基于转移概率和网络联系的辽宁省农村居民点适宜性评价 总被引:2,自引:0,他引:2
[目的]农村居民点适宜性评价在农村居民点调控、规划和预测中具有基础作用,且农村居民点适宜性评价应顾及农村居民点之间的社会经济活动联系。[方法]以辽宁省为研究区,首先运用逐步Logistic回归模型构建农村居民点转移概率,其次运用网络分析方法确定农村居民点图斑间的网络联系强度,最终通过加权求和方法确定农村居民点转化概率,进行农村居民点空间布局适宜性评价。[结果]辽宁省农村居民点可以划分为高度适宜类、较适宜类、一般适宜类和不适宜类4类,分别占农村居民点总面积的比例为28.18%、31.32%、13.26%和27.24%;从各地貌分区来看,高度适宜类主要集中分布在中部平原地区和东部山地丘陵区中的南方沿海地区,而不适宜类整体分布则较为零散;辽宁省中部平原区位条件好,东部沿海地区区位条件也较好,西部山地丘陵区地区较差。[结论]研究方法和结论有助于全面把握农村居民点社会经济与区位适宜性特征,为农村居民点科学规划提供科学指导。 相似文献
8.
分析了当前国内外典型中小型特种飞机的特点和应用方向,阐述了中小型特种飞机系统的技术发展趋势。通过分析典型的特种通用飞机的性能和平台构型特点,详细描述了基于典型中小型特种飞机平台的机载侦察监视应用系统的组成、原理、主要性能及技术难点,并结合实际工程应用,介绍了系统的应用成果。应用分析表明,基于中小型特种飞机平台的机载平台的应用系统有较大的应用范围和市场前景。 相似文献
9.
根据供给侧结构性改革的背景和基本内涵,对水资源供给侧结构性改革的内涵进行研究,提出了狭义和广义的水资源供给侧结构性改革的内容。在分析水资源需求新形势的基础上,提出了水资源供给侧结构性改革的要求。根据水循环理论提出了水资源管理是推动水资源供给侧结构性改革的重要抓手,并在最严格水资源管理制度的基础上,提出了符合水资源供给侧结构性改革要求的水资源管理制度。 相似文献
10.
A proper credit scoring technique is vital to the long-term success of all kinds of financial institutions, including peer-to-peer (P2P) lending platforms. The main contribution of our paper is the robust ranking of 10 different classification techniques based on a real-world P2P lending data set. Our data set comes from the Lending Club covering the 2009–2013 period, which contains 212,252 records and 23 different variables. Unlike other researchers, we use a data sample which contains the final loan resolution for all loans. We built our research using a 5-fold cross-validation method and 6 different classification performance measurements. Our results show that logistic regression, artificial neural networks, and linear discriminant analysis are the three best algorithms based on the Lending Club data. Conversely, we identify k-nearest neighbors and classification and regression tree as the two worst classification methods. 相似文献