全文获取类型
收费全文 | 6987篇 |
免费 | 341篇 |
国内免费 | 144篇 |
专业分类
财政金融 | 942篇 |
工业经济 | 324篇 |
计划管理 | 1289篇 |
经济学 | 1599篇 |
综合类 | 888篇 |
运输经济 | 80篇 |
旅游经济 | 52篇 |
贸易经济 | 725篇 |
农业经济 | 736篇 |
经济概况 | 837篇 |
出版年
2024年 | 46篇 |
2023年 | 174篇 |
2022年 | 180篇 |
2021年 | 259篇 |
2020年 | 286篇 |
2019年 | 215篇 |
2018年 | 192篇 |
2017年 | 266篇 |
2016年 | 242篇 |
2015年 | 274篇 |
2014年 | 472篇 |
2013年 | 594篇 |
2012年 | 537篇 |
2011年 | 585篇 |
2010年 | 437篇 |
2009年 | 372篇 |
2008年 | 434篇 |
2007年 | 374篇 |
2006年 | 381篇 |
2005年 | 286篇 |
2004年 | 167篇 |
2003年 | 162篇 |
2002年 | 135篇 |
2001年 | 92篇 |
2000年 | 62篇 |
1999年 | 54篇 |
1998年 | 51篇 |
1997年 | 33篇 |
1996年 | 28篇 |
1995年 | 11篇 |
1994年 | 19篇 |
1993年 | 11篇 |
1992年 | 8篇 |
1991年 | 9篇 |
1990年 | 5篇 |
1989年 | 6篇 |
1986年 | 4篇 |
1985年 | 2篇 |
1984年 | 1篇 |
1983年 | 3篇 |
1982年 | 2篇 |
1980年 | 1篇 |
排序方式: 共有7472条查询结果,搜索用时 15 毫秒
991.
Avanidhar Subrahmanyam 《The Financial Review》2005,40(1):11-35
In this paper, we shed light on short‐horizon return reversals. We show theoretically that a risk‐based rationale for reversals implies a relation between returns and past order flow, whereas a reversion in beliefs of biased agents does not do so. The empirical results indicate that returns are more strongly related to own‐return lags than to lagged order imbalances. Thus, the evidence suggests that monthly reversals are not completely captured by inventory effects and may be driven, in part, by belief reversion. We do find that returns are cross‐sectionally related to lagged imbalance innovations at horizons longer than a month. 相似文献
992.
There are many situations in life testing experiment where an item fail instantaneously and hence the observed lifetime is reported as zero. The items that fail prematurely are called early failures. We propose a modified Weibull distribution as a suitable model to represent such situations by mixture of a singular distribution at zero and a two parameter Weibull distribution. We obtain the maximum likelihood estimates of the parameters and their asymptotic distributions. The methods are illustrated on drying of woods under different experiments and schedules reported by Vanmann (Research report, 1991:2). 相似文献
993.
采用功放管合成、电路模块合成及插箱整机合成相结合的三级合成方案,研制成功了一种S频段连续波800W固态功放,经测试在2025—2120MHz频段,功放连续波输出功率1dB压缩点大于59dBm(800W),增益大于68dB,功率附加效率25%,合成效率达到85%以上。 相似文献
994.
牧晓阳 《铁道部郑州公安管理干部学院学报》2006,16(3):13-16
刑法明确性原则是资产阶级在刑法领域里反对专制社会罪刑擅断主义所取得的一项划时代的进步成果,目前已被世界各国的刑事法典普遍加以确认。作为罪刑法定原则在刑事立法领域的深层次体现,它符合建立现代民主和法治社会的要求,有助于保障人权、健全法治,促进司法公正和提高司法效率。在我们努力建设社会主义法治国家的今天,对该原则的法律价值和社会意义进行界定和归整,对建立以人为本的和谐法治社会具有重要意义。 相似文献
995.
We examine the lead‐lag relation between index futures and the underlying index under three types of short‐selling restrictions on stocks in Hong Kong. Our results indicate that lifting short‐selling restrictions can enhance the informational efficiency of the stock market relative to the index futures. We also investigate the impact of two market characteristics, market conditions and the magnitude of mispricing on the lead‐lag relations under different short‐selling regimes. Our findings suggest that if we remove restrictions, the contemporaneous price relation between the futures and cash markets becomes stronger particularly in the falling market and when the cash market is relatively overpriced. 相似文献
996.
Zuanhuang Lin Yuqi Han Liping Lin 《中国经济评论(英文版)》2005,4(7):49-53,62
A knowledge based company is the microcosmic foundation of the knowledge economy, the design of its organization structure should amplify the company competence to be agile to the knowledge elements. This paper expounds an interior market network structure which is fit for the company intellectual capital operation, and analyses this organization pattern about the reasons of existence, the effectiveness of growing up in scale, the economies of knowledge distribution and the efficiency of operation, and it will provide some beneficial theoretical guidance about how can a company improve its competition competence in the knowledge environment through organization innovation. 相似文献
997.
Günther Lang 《Portuguese Economic Journal》2005,4(3):171-191
In a world of endogenous fertility, where the number of descendants is an integral part of the economic allocation, the traditional
concept of Pareto-optimality cannot be applied any longer: the number of individuals to be present on earth may vary between
any two allocations we wish to compare. Therefore, the concept needs to be modified in order to give new life to the discussion
of economic efficiency. This work introduces a straightforward variation of the Pareto-principle and characterizes the optimality
of economic allocations according to this concept. It is shown that some of the well-known traditional results on intertemporal
optimality do no longer hold. In particular, lump-sum tax instruments (or the rearrangement of initial endowments) are no
longer a sufficient tool to achieve efficiency.
Received: March 2003, Accepted: September 2005
This work has greatly benefitted from comments by Oded Galor, Karl Shell, Vasco Santos and an excellent anonymous referee.
Many thanks to the Editor of this Journal for providing an impeccable refereeing process. Support by the European Union via
the Human Capital and Mobility Grant #ERBCHBICT941218 is gratefully acknowledged. 相似文献
998.
《Transportation Research Part E: Logistics and Transportation Review》1997,33(4):321-327
This paper describes the landing fee structures which are prevalent at most European airports: a mix of weight-based landing fees, passenger fees, and other charges. The paper describes alternative pricing systems which emphasize economic efficiency rather than airport finance considerations. Finally the paper calculates the structure of landing fees for a hypothetical uncongested airport using a Ramsey pricing formulation with data representative of uncongested Spanish airports. Further research is necessary before recommending implementation because the elasticities of demand and operating costs with distance are borrowed from North American studies. 相似文献
999.
1000.
混业经营条件下金融监管效率的比较研究 总被引:1,自引:0,他引:1
近年来,主要发达国家均放弃了对金融分业经营的严格规定,实行混业经营,金融混业经营浪潮再度掀起。随着各国金融业混业经营趋势的逐渐明显,我国现阶段实行的分业监管模式显然已经缺乏发展的基础。从前瞻的角度看,分业监管模式在防范和化解金融风险、维护金融业有序竞争的监管功能方面面临弱化的处境。因此对目前的中国而言,选择一个适当的金融监管模式,对金融业进行更有效率的监管就显得十分必要。文章正是以混业经营为背景,对美国1999年金融监管模式改革前后的金融监管效率进行了比较分析,希望对我国未来金融监管模式的建立有一定的借鉴 相似文献