全文获取类型
收费全文 | 12689篇 |
免费 | 351篇 |
国内免费 | 323篇 |
专业分类
财政金融 | 563篇 |
工业经济 | 795篇 |
计划管理 | 2781篇 |
经济学 | 3083篇 |
综合类 | 1763篇 |
运输经济 | 40篇 |
旅游经济 | 120篇 |
贸易经济 | 1635篇 |
农业经济 | 368篇 |
经济概况 | 2215篇 |
出版年
2024年 | 115篇 |
2023年 | 270篇 |
2022年 | 325篇 |
2021年 | 458篇 |
2020年 | 540篇 |
2019年 | 343篇 |
2018年 | 275篇 |
2017年 | 368篇 |
2016年 | 399篇 |
2015年 | 438篇 |
2014年 | 964篇 |
2013年 | 1116篇 |
2012年 | 1046篇 |
2011年 | 1138篇 |
2010年 | 919篇 |
2009年 | 816篇 |
2008年 | 873篇 |
2007年 | 787篇 |
2006年 | 691篇 |
2005年 | 459篇 |
2004年 | 315篇 |
2003年 | 254篇 |
2002年 | 151篇 |
2001年 | 119篇 |
2000年 | 77篇 |
1999年 | 26篇 |
1998年 | 27篇 |
1997年 | 5篇 |
1996年 | 8篇 |
1995年 | 9篇 |
1994年 | 9篇 |
1993年 | 4篇 |
1992年 | 3篇 |
1990年 | 2篇 |
1988年 | 3篇 |
1986年 | 1篇 |
1985年 | 1篇 |
1984年 | 2篇 |
1983年 | 4篇 |
1982年 | 1篇 |
1981年 | 2篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
171.
怀化是一个欠发达的山区,要发展、壮大民营经济,提升民营科技企业整体创新能力,必须注重发挥科技部门职能作用,强化政府引导服务功能。 相似文献
172.
文章从技术发展的特征,现代企业生产方式的变革,全球化经济发展趋势,论证了合作创新正成为企业技术创新的新趋势,分析了合作创新的优势。提出了我国企业发展合作创新的策略。 相似文献
173.
174.
在经济全球化发展日益加快的今天,提高企业技术创新能力成为企业增加竞争力的关键。制度创新可以推动技术创新从而提高企业技术创新能力。 相似文献
175.
176.
以2012—2017年A股上市公司为样本,借助双重差分倾向得分匹配法(PSM-DID)研究了新环保法实施这一外生性事件对企业技术创新投入的影响。结果显示,新环保法实施后受影响企业的技术创新投入有所增加,但结果并不显著。进一步探究其原因,发现除新环保法影响可能存在的时滞性特征以外,企业并没有在新环保法实施环境下对企业的资本结构、治理结构和激励方案等影响企业技术创新的重大方面做出及时调整,导致环保法的强制性作用无法快速、有效地影响企业的技术创新。 相似文献
177.
178.
Lorenzo Ardito Antonio Messeni Petruzzelli Federica Pascucci Enzo Peruffo 《Business Strategy and the Environment》2019,28(1):185-197
The present paper investigates the relationship between the involvement of family firms in R&D collaborations aimed at developing green solutions and the value of resulting innovations. To dig into this relationship, the moderating effects of two proximity dimensions (i.e., geographical distance and technological relatedness) are also assessed. Analyses are based on a sample of 156 joint patents classified into the “Alternative energy production” field, as defined by the International Patent Classification Green Inventory and successfully filed at the United States Patent and Trademark Office in the period 1997–2010 by publicly listed companies. According to our conjectures, results reveal a positive relationship between the involvement of family firms and green innovation value. Moreover, our findings show that this relationship is hindered when partners are geographically distant or technologically proximate. Eventually, we contribute to the literature on green innovation by unveiling under which conditions inter‐firm R&D collaborations lead to more valuable innovations. 相似文献
179.
Based on the logic of “trust‐behavior,” we examined the relationship between interfirm cognitive trust, emotional trust, and firms' cooperation on environmental innovation, as well as the moderating role of environmental hostility on the relationship between two dimensions of interfirm trust and cooperation on environmental innovation. Data for the study were collected from 216 firms in China. The results indicated that both interfirm cognitive trust and emotional trust were positively correlated to firms' cooperation on environmental innovation, and the effect of emotional trust on firms' cooperation on environmental innovation was negatively moderated by environmental hostility. Finally, the results were discussed and future directions put forward. 相似文献
180.
Seyedesmaeil Mousavi Bart Bossink Mario van Vliet 《Business Strategy and the Environment》2019,28(2):366-387
To achieve sustainable development, companies are increasingly putting an emphasis on the creation and the promotion of environmentally sustainable innovations. Environmentally sustainable innovation often involves a significant shift in a new strategic direction. This paper studies this shift from a dynamic capabilities perspective and aims to identify the microfoundations of science‐based companies' dynamic capabilities for high‐tech environmentally sustainable innovations. It investigates the development of high‐tech environmentally sustainable innovations in two distinctive science‐based companies. To scholars, this study provides an in‐depth process analysis, over time, of how and why microfoundations of dynamic capabilities influence the development of a science‐based company's high‐tech environmentally sustainable innovations. To practitioners in science‐based firms, this process study can function as a frame of reference, enabling the tailoring of a strategy for high‐tech environmentally sustainable innovation. 相似文献