全文获取类型
收费全文 | 8698篇 |
免费 | 270篇 |
国内免费 | 88篇 |
专业分类
财政金融 | 779篇 |
工业经济 | 570篇 |
计划管理 | 2001篇 |
经济学 | 1522篇 |
综合类 | 1245篇 |
运输经济 | 96篇 |
旅游经济 | 75篇 |
贸易经济 | 1015篇 |
农业经济 | 615篇 |
经济概况 | 1134篇 |
信息产业经济 | 1篇 |
邮电经济 | 3篇 |
出版年
2024年 | 15篇 |
2023年 | 71篇 |
2022年 | 185篇 |
2021年 | 331篇 |
2020年 | 247篇 |
2019年 | 165篇 |
2018年 | 143篇 |
2017年 | 210篇 |
2016年 | 171篇 |
2015年 | 298篇 |
2014年 | 479篇 |
2013年 | 567篇 |
2012年 | 815篇 |
2011年 | 957篇 |
2010年 | 822篇 |
2009年 | 630篇 |
2008年 | 645篇 |
2007年 | 565篇 |
2006年 | 595篇 |
2005年 | 517篇 |
2004年 | 169篇 |
2003年 | 108篇 |
2002年 | 96篇 |
2001年 | 107篇 |
2000年 | 56篇 |
1999年 | 36篇 |
1998年 | 15篇 |
1997年 | 11篇 |
1996年 | 5篇 |
1995年 | 4篇 |
1994年 | 2篇 |
1993年 | 2篇 |
1992年 | 2篇 |
1990年 | 1篇 |
1989年 | 1篇 |
1988年 | 3篇 |
1985年 | 1篇 |
1984年 | 1篇 |
1982年 | 1篇 |
1981年 | 2篇 |
1980年 | 1篇 |
1979年 | 2篇 |
1973年 | 1篇 |
1968年 | 1篇 |
排序方式: 共有9056条查询结果,搜索用时 15 毫秒
1.
2.
3.
转型期中国,地方国有企业作为地区经济发展的一股中坚力量,当其发生债务违约时,作为实际控制人的地方政府究竟是否愿意提供支持,会优先选择哪些企业提供支持,政府的支持行为是否会影响到信贷资源的配置效率呢?为得到验证,文章选取2007-2016年沪深A股地方国有上市企业作为研究样本,实证分析了地方国企发生债务违约后,地方政府的支持行为及其对信贷资源配置效率的影响。研究结论表明:第一,地方国企发生债务违约后,地方政府会提供更多的"支持",且支持额度与债务违约额呈显著正相关关系;第二,债务违约前,承担了更多社会责任(环保投资、捐赠以及就业等)的地方国企,在债务违约后可相应地获得更多的地方政府支持;第三,违约企业,尤其是得到更多政府支持的违约企业可获得更多的信贷资源,而其经营业绩却往往更差。由此表明政府干预一定程度上降低了信贷资源配置效率。 相似文献
4.
Nadia Di Paola Adele Caldarelli Roberto Vona 《Technology Analysis & Strategic Management》2018,30(3):363-375
Studies on the legitimacy challenges faced by hi-tech start-ups are still scarce, leaving room for research, and policymaking debate. Legitimacy issues may become difficult to face for hi-tech firms in comparison with other start-ups, because they work in an extreme environment where the technological challenges are at the edge of the scientific possibility. The paper proposes a conceptual model to grasp the relevance of three legitimacy drivers of the hi-tech start-ups for investment decisions. We investigated the ability of 30 hi-tech start-up firms to obtain financial resources from the US investors, employing a set-theoretic approach and carried out fuzzy-set Qualitative Comparative Analysis. Our findings clarify that the funding decisions of US investors are driven by the location of headquarter and R&D of hi-tech start-ups and by the educational experience of the founders. Our study has significant theoretical, practical, and policymaking implications. 相似文献
5.
Jing Wang Vangelis Tsiligiris Robert Hartley 《Accounting Education: An International Journal》2019,28(3):221-238
This paper evaluates ways of instilling project management skills into accounting-based learning by the use of an iterative A3 planner to plan, monitor and review assignment progress. The application of an A3 planner to facilitate a project-based learning (PBL) group assignment in undergraduate accounting education has been critically evaluated in terms of both the student and tutor experience. The study uses a mix of qualitative and quantitative data. Quantitative data assisting exploration of perceptions were collected through 100 undergraduate students. A series of focus group discussions were carried out to investigate students’ engagement and tutors’ teaching experiences regarding the adoption of the A3 planner. The results suggest that the A3 planner promotes active planning and effective management of a PBL group assignment. It makes students’ thought processes more visible thereby facilitating and enhancing the tutoring/mentoring process. Moreover a more interactive and transparent approach by doing assignment via the use of an iterative A3 planner has ensured more feedback points and action based efficiency in the doing approach for learners. 相似文献
6.
ABSTRACTThe escalating U.S.–China trade conflicts have increasingly shadowed the outlook of the world economy. The Trump administration aims to achieve its strategic goals including reducing current account deficits, promoting the U.S. manufacturing sector, and curbing Chinese high-tech industries by waging the trade war against China. This paper argues that the current account deficits and the declining manufacturing sector in the U.S. are mainly driven by its internal structural factors, such as low saving rates, high labor costs, and rising service sector, rather than by the import competition from China. Moreover, the trade war further deteriorates the U.S. current account deficits and erode its comparative advantage, and it forces China to invest more in technological innovation and human capital, and thus promote its progress in high-tech industries. Thus, the U.S. will not be able to achieve its strategical goals and eventually lose the trade war. 相似文献
7.
U.S. multinational corporations increasingly use intra-firm, cross-border research collaboration to disperse R&D across different countries. This paper investigates the implications of such collaboration on the abilities of firms to garner benefits from R&D tax incentives. We find that the association between R&D intensity and tax incentives is three to five times larger when firms have extensive cross-border collaboration connected to a country. We also find that the effect is stronger when local intellectual property protection is weaker and when local innovation resources are higher. Our results suggest that cross-border collaboration helps firms achieve more tax-efficient R&D investments both by reducing the nontax frictions posed by weak intellectual property protection and by increasing the nontax benefits of foreign R&D. 相似文献
8.
县域特色产业集群的快速发展有效推动了当地经济发展,在市场中形成了规模优势和竞争优势,是构成经济持续发展的关键动力.但是当前在发展过程中出现了较多的问题,影响了其发展质量和发展速度,基于此,本文对县域特色产业集群的发展优势、发展问题和发展策略进行了分析,以期可以为其高质量发展提供有效参考,扩大发展规模. 相似文献
9.
当前小体积远端射频单元(Remote Radio Unit,RRU)主要是皮站级别的Pico-RRU,其重量和体积仍然难以满足掌上型的要求。为此,采用高集成度的AD9361芯片来实现长期演进(Long Term Evolution,LTE)宽带收发信机功能,配合时钟同步模块、放大器模块和控制接口电路等一起构建低成本的掌上型RRU。主要解决了基于AD9516的时钟同步、低相位噪声设计和高灵敏度接收机设计三个技术难点,成功实现了掌上型、高性能、低成本的设计目标。整个RRU样机尺寸为18 cm×10 cm×2 cm,质量约500 g,量产成本千元以内。测试表明,该RRU下行误差向量幅度(Error Vector Magnitude,EVM)小于3%,优于3GPP要求的8%;10 MHz带宽时上行接收机灵敏度优于3GPP要求的-93.5 dBm。 相似文献
10.
This study proposes a hybrid information approach to predict corporate credit risk. In contrast to the previous literature that debates which credit risk model is the best, we pool information from a diverse set of structural and reduced‐form models to produce a model combination based on credit risk prediction. Compared with each single model, the pooled strategies yield consistently lower average risk prediction errors over time. We also find that while the reduced‐form models contribute more in the pooled strategies for speculative‐grade names and longer maturities, the structural models have higher weights for shorter maturities and investment grade names. 相似文献