全文获取类型
收费全文 | 18998篇 |
免费 | 945篇 |
国内免费 | 470篇 |
专业分类
财政金融 | 885篇 |
工业经济 | 1043篇 |
计划管理 | 4461篇 |
经济学 | 3845篇 |
综合类 | 2845篇 |
运输经济 | 156篇 |
旅游经济 | 476篇 |
贸易经济 | 3154篇 |
农业经济 | 572篇 |
经济概况 | 2976篇 |
出版年
2024年 | 57篇 |
2023年 | 331篇 |
2022年 | 404篇 |
2021年 | 619篇 |
2020年 | 716篇 |
2019年 | 444篇 |
2018年 | 411篇 |
2017年 | 518篇 |
2016年 | 571篇 |
2015年 | 671篇 |
2014年 | 1491篇 |
2013年 | 2043篇 |
2012年 | 1719篇 |
2011年 | 1876篇 |
2010年 | 1436篇 |
2009年 | 1275篇 |
2008年 | 1389篇 |
2007年 | 1201篇 |
2006年 | 1021篇 |
2005年 | 706篇 |
2004年 | 465篇 |
2003年 | 377篇 |
2002年 | 230篇 |
2001年 | 175篇 |
2000年 | 116篇 |
1999年 | 34篇 |
1998年 | 29篇 |
1997年 | 8篇 |
1996年 | 14篇 |
1995年 | 14篇 |
1994年 | 9篇 |
1993年 | 6篇 |
1992年 | 5篇 |
1991年 | 2篇 |
1990年 | 2篇 |
1988年 | 4篇 |
1987年 | 1篇 |
1986年 | 1篇 |
1985年 | 6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 15 毫秒
1.
The spread of the COVID-19 pandemic has resulted in the launch of contactless delivery services. This research integrates resource matching, service quality evaluation, and perceived value theories to explore the factors that promote the use contactless delivery services. The data was obtained through questionnaire surveys, and research hypotheses were verified through the structural equation modelling approach. With the exception of convenience, the results show that privacy, reliability, security, and flexibility have a significantly positive effect on consumers' intention to use “contactless” delivery services through consumers' perceived value. This study contributes to the literature by introducing theoretical frameworks from various paradigms and enriches the academic research on existing theoretical structure models. It also helps optimize resource allocation and realize the social environment related to coexisting with the COVID-19 pandemic. 相似文献
2.
智慧居家养老服务的协同供给可以形成社会联动效应,降低公共服务成本。运用公共服务协同供给分析框架,通过交叉分类方法从协同主体的利益与目标两个变量的耦合性出发分析广西钦州市智慧居家养老项目中养老服务主体间不同种类的协同关系,可以从加强政府领导、形成合作联盟、建立市场标准、创新扶持政策4个方面完善政府、企业、社会组织之间不同类型的协同供给,实现社会资源的高效利用以及向智慧居家养老服务的发展和转变。 相似文献
3.
运用CiteSpace软件,以1995—2022年中国知网(CNKI)核心期刊和中文社会科学引文索引(CSSCI)期刊为数据源,从热点关键词、发文作者、发文机构以及突现词方面对创新链相关领域文献进行可视化分析。研究发现:有关创新链的研究角度大概可以分为产业、技术、区域、模式和价值链5个方面;从发文特征来看,发文量最多的是张杰,群体内相较于群体间合作较多;从研究机构分布来看,机构间的合作比较分散,且合作大多发生在一个国家或地区;从未来演进趋势来看,文献近期表现为国家政策主导。 相似文献
4.
This study investigates the relational factors and motivations of Chinese migrant consumers towards financial service providers in New Zealand. Using convergent interviews, a deeper understanding is developed of immigrants’ relational behaviour with service providers. These relationships with service providers are significantly influenced by traditional Chinese values and guanxi and relational embeddedness plays an important role in how they are developed. The research contributes a better understanding of the interplay between Eastern and Western cultures in service relationships among immigrant groups. A general theory of the Chinese perspective of customer relationship management is developed. The implications for how marketing practitioners manage their relationships with migrant customers are explored. 相似文献
5.
Besnik Pula 《New Political Economy》2018,23(4):458-474
The prevailing transitions literature suggests that dynamic firms in postsocialist economies are the result of macroinstitutional reforms leading to the making of markets. This article builds on work in comparative political economy and economic sociology to show that the degree of competitive behaviour of postsocialist firms is determined not by the existence of general market institutions alone but by the kinds of organisational allies firms possess and the kinds of markets they compete in. Using firm survey data across 28 postsocialist economies, the article examines the determinants of competitive restructuring by firms, including product innovation, standards upgrade, financial transparency, and investments in research and development. The article confirms insights from comparative political economy which suggest that dynamic enterprise sectors emerge when governance is effective. However, at the firm level, the article finds that transnational ties and supportive policy environments are most significant in the making of dynamic postsocialist enterprises. The article also highlights important regional variation in firm behaviour and discusses the relationship between institutional frameworks, organisational embeddedness, and firm restructuring in postsocialist economies. 相似文献
6.
This research looks into the innovative activities of subunits of large non-U.S firms in the U.S from 1969 to 1995, suggesting that the innovations in the subunits of multinational corporations are closely linked to their specializations in General Purpose Technologies (GPTs). GPTs enable recombining knowledge from different domains on an international scale, and that the specialization of innovations in GPT fields within a subunit is positively associated with the innovative capacity at large, along with the degree of technological diversification of that specific subunit. As firms expand geographically to tap into local innovation centers to develop new growth alternatives, specialization of GPTs in these firms actually facilitates further geographical dispersion of innovative activities across locations. Lastly, additional specializations of innovations in GPT fields within the host innovation centers does help in attracting innovation activities of firms from a wider range of industries. 相似文献
7.
8.
战术面向服务架构(TSOA)是实现战术云平台服务基础设施的重要支撑概念。由于战术环境的复杂性,目前对TSOA实施过程中面临问题和相关实现技术的总结还较少。为此,开展了针对TSOA的概念以及相关技术的研究。首先,从战术环境下的TSOA架构需求背景出发,介绍了TSOA架构的组成以及适应性特征;然后,通过分析战术环境下设备和网络等多方面存在的限制性因素,明确实施TSOA架构所面临的挑战以及需要解决的关键问题,并对实现过程中涉及的服务发现、消息传输机制、网络状态自适应等相关技术进行归纳;最后,对国内外的相关研究工作进行总结,期望对推动TSOA架构的具体实施提供一定参考。 相似文献
9.
《Canadian Journal of Administrative Sciences / Revue Canadienne des Sciences de l\u0027Administration》2018,35(3):429-443
The extant literature runs short in understanding openness of innovation regarding and the different pathways along which internal and external knowledge resources can be combined. This study proposes a unique typology for outside‐in innovations based on two distinct ways of boundary spanning: whether an innovation idea is created internally or externally and whether an innovation process relies on external knowledge resources. This yields four possible types of innovation, which represent the nuanced variation of outside‐in innovations. Using historical data from Canada for 1945–1980, this study unveils different implications of these innovation types for different levels of innovation novelty. Copyright © 2016 ASAC. Published by John Wiley & Sons, Ltd. 相似文献
10.
[目的]在统计描述华北平原农民的机械采纳率和机械采纳方式的基础上,分析农民的机械化需求和农机手的机械服务供给行为及其内在逻辑,从理论和实证两个维度对华北平原地区农业机械技术的特殊实现形式——服务外包做出解释。[方法]运用描述性统计分析和成本收益核算等方法,利用冀豫鲁3省779个农户和45个农机手的实地调研数据分别对农业机械化发展的前提条件和实现方式做出解释。[结果]农业劳动力成本上升与农机购置成本下降,共同刺激了农民的机械技术需求,是华北平原农业机械化快速发展的前提条件;持有农业机械的农民基于理性选择而向其他农民提供农机作业服务,是推动华北平原农业机械化以服务形式实现的主要原因。[结论]相关部门应继续探索高效的农机补贴模式,刺激农民的机械技术需求;农业机械支持政策可适当向农机合作社倾斜,提高农机手的组织化程度和服务数量与质量。 相似文献