全文获取类型
收费全文 | 92452篇 |
免费 | 2282篇 |
国内免费 | 1701篇 |
专业分类
财政金融 | 6431篇 |
工业经济 | 3650篇 |
计划管理 | 19211篇 |
经济学 | 15950篇 |
综合类 | 17089篇 |
运输经济 | 661篇 |
旅游经济 | 1615篇 |
贸易经济 | 11356篇 |
农业经济 | 7341篇 |
经济概况 | 13129篇 |
信息产业经济 | 2篇 |
出版年
2024年 | 260篇 |
2023年 | 954篇 |
2022年 | 1272篇 |
2021年 | 1869篇 |
2020年 | 2242篇 |
2019年 | 1421篇 |
2018年 | 1345篇 |
2017年 | 1620篇 |
2016年 | 1762篇 |
2015年 | 2286篇 |
2014年 | 5599篇 |
2013年 | 6251篇 |
2012年 | 7498篇 |
2011年 | 9789篇 |
2010年 | 7446篇 |
2009年 | 6472篇 |
2008年 | 7178篇 |
2007年 | 6587篇 |
2006年 | 6516篇 |
2005年 | 4676篇 |
2004年 | 3361篇 |
2003年 | 2714篇 |
2002年 | 1780篇 |
2001年 | 1710篇 |
2000年 | 1094篇 |
1999年 | 571篇 |
1998年 | 271篇 |
1997年 | 261篇 |
1996年 | 191篇 |
1995年 | 130篇 |
1994年 | 79篇 |
1993年 | 98篇 |
1992年 | 59篇 |
1991年 | 42篇 |
1990年 | 42篇 |
1989年 | 28篇 |
1988年 | 23篇 |
1987年 | 13篇 |
1986年 | 15篇 |
1985年 | 186篇 |
1984年 | 212篇 |
1983年 | 151篇 |
1982年 | 113篇 |
1981年 | 61篇 |
1980年 | 77篇 |
1979年 | 46篇 |
1978年 | 38篇 |
1977年 | 23篇 |
1975年 | 1篇 |
1973年 | 1篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
1.
2.
In this article, the relation is explored between the external technical embeddedness of the subsidiary, its assigned role, and capability development in the MNC. It is argued that assigning roles of responsibility or mandates to certain subsidiaries can effect integration of subsidiary-developed knowledge in the MNC. Departing from literature on the market-as-networks perspective and writings from recent years on subsidiary roles, hypotheses are developed and a model outlined. The model describes a significant link between the external technical embeddedness of the subsidiary and its assigned role within the MNC, and a significant relation between the subsidiary's assigned role and its importance for other units’ capability development. The model is tested on a sample of 97 subsidiaries using the LISREL 8.3 statistical method. The final model implies that by assigning specific roles to different subsidiaries, headquarters can exploit the knowledge developed in the external environments of these subsidiaries. 相似文献
3.
齐齐哈尔是农业大市,有发展奶牛产业的极大优势,奶牛产业化工作成绩突出,但与发达国家和地区相比,还存在许多不足,因此,做大做强齐齐哈尔市的奶牛产业还有很多事情要做. 相似文献
4.
Qiaogang Guo Yongdong Yang 《美中经济评论(英文版)》2004,3(9):60-65
The paper discusses the necessity and objective of digital library system, and analyzes the current situation of the high education institute digital libraries in China as well as some potential problems. Development plan is proposed for the digital library system for universities. 相似文献
5.
This paper addresses a simple question: why do people vote? Though simple, this question remains unanswered despite the considerable attention it has received. In this paper, I show that purely rational–instrumental factors explain a large fraction of turnout variations, provided that the effect of the margin of victory on implemented policy is considered. I extend Myerson's models of elections based on Poisson games, and show that, when platforms are responsive to vote shares, the predictions of the model become consistent with several stylized facts, including the secular fall in turnout rates in the US. 相似文献
6.
Calvyn Potgieter 《International Journal of Technology and Design Education》2004,14(3):205-218
In this article the impact of technology education, as a new learning area (subject) in the curriculum, on in-service teacher
education in South Africa is described in order to ascertain the extent of the impact. The research on which this article
is based draws on a variety of experiences and observations in the field at grassroots level (in particular an outreach project
in rural communities). The envisaged impact of technology education on South African schools, communities, teacher educators
and teachers, the range of in-service teacher education that is required, and the impacts in urban and rural areas are discussed.
Finally a number of concluding remarks are made about the extent of the impact of the inclusion of technology education in
the new National Curriculum Statement and whether the situation has changed since the implementation of a pilot technology
education project in 1998.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
7.
农村现行的家庭养老、土地养老、集体养老正在弱化,巩固家庭养老的基础地位,强化土地保障功能,辅之以社区扶持,推行多层次养老保险,符合中国国情和农村生产力发展水平,是解决农村养老问题的必然选择. 相似文献
8.
This paper compares the approximation capabilities of the minflex-Laurents translog and minflex generalized Leontief cost functions with their translog and generalized Leontief counterparts in Monte Carlo experiments. The minflex Laurent specifications generally provided closer approximations to underlying technical and economic parameters. Imposition of nonlinear restrictions on some of the parameters of the minflex Laurent models yielded measurable improvement in estimated elasticities of substitutions, returns to scale, and rates of technical change.The refereeing process of this paper was handled through E. Appelbaum. 相似文献
9.
We give an example of a subspace K of such that , where denotes the closure with respect to convergence in probablity. On the other hand, the cone C ≔ K − L ∞ + is dense in L ∞ with respect to the weak-star topology σ( L ∞ , L 1 ) . This example answers a question raised by I. Evstigneev. The topic is motivated by the relation of the notion of no arbitrage and the existence of martingale measures in Mathematical Finance. 相似文献
10.
乡镇企业自产生以来就为解决农村富余劳动力,促进农村经济的发展与稳定,及国民经济持续、稳定、快速地发展作出了重大的贡献。但是,随着国民经济进一步向纵深方向发展,乡镇企业自身的缺陷日益显露出来,加之国内外竞争环境发生了深刻变化。这势必影响乡镇企业潜力的充分发挥与健康发展。如何挖掘发展潜力正是当务之急。本文旨在剖析制约乡镇企业发展的深层次因素,借鉴成功范例的经验,谋求其的新发展。 相似文献