全文获取类型
收费全文 | 2718篇 |
免费 | 222篇 |
国内免费 | 38篇 |
专业分类
财政金融 | 157篇 |
工业经济 | 175篇 |
计划管理 | 579篇 |
经济学 | 495篇 |
综合类 | 329篇 |
运输经济 | 33篇 |
旅游经济 | 48篇 |
贸易经济 | 653篇 |
农业经济 | 221篇 |
经济概况 | 288篇 |
出版年
2024年 | 11篇 |
2023年 | 44篇 |
2022年 | 35篇 |
2021年 | 86篇 |
2020年 | 98篇 |
2019年 | 90篇 |
2018年 | 105篇 |
2017年 | 99篇 |
2016年 | 80篇 |
2015年 | 79篇 |
2014年 | 179篇 |
2013年 | 279篇 |
2012年 | 208篇 |
2011年 | 255篇 |
2010年 | 170篇 |
2009年 | 150篇 |
2008年 | 168篇 |
2007年 | 159篇 |
2006年 | 154篇 |
2005年 | 120篇 |
2004年 | 92篇 |
2003年 | 78篇 |
2002年 | 48篇 |
2001年 | 56篇 |
2000年 | 34篇 |
1999年 | 26篇 |
1998年 | 20篇 |
1997年 | 16篇 |
1996年 | 7篇 |
1995年 | 9篇 |
1994年 | 6篇 |
1993年 | 6篇 |
1992年 | 2篇 |
1991年 | 1篇 |
1989年 | 1篇 |
1988年 | 1篇 |
1987年 | 2篇 |
1986年 | 1篇 |
1984年 | 1篇 |
1983年 | 2篇 |
排序方式: 共有2978条查询结果,搜索用时 15 毫秒
1.
介绍了未来高速移动通信新标准IEEE802.20的总体概况,具体分析了IEEE802.20的技术特性、系统参考结构以及系统的组成模型,并对IEEE802.20标准前景分析与展望进行了详细描述。 相似文献
2.
Christian Von Weizsäcker 《Empirica》1993,20(3):241-244
Most firms produce most of the time under conditions of substantial economies of scale. The division of labour, according to Adam Smith the mainspring of wealth, is intrinsically an economies of scale phenomenon. Market structure in most industries in characterized by a small number of suppliers and a larger number of customers. I explain this law of small numbers as the equilibrium of two forces: the deconcentration effect of imitation and the market spliting effect of further refinements in the division of labour by innovation. A deconcentrated market creates larger incentives for market splitting (product differentiation) by innovation than a concentrated market. But market splitting raises concentration in the market and it raises the number of different markets in the economy. Before the economies of scale of old products are fully exploited, new products are being offered which again are produced under conditions of economies of scale. 相似文献
3.
Ma Chun-Chieh 《美中经济评论(英文版)》2008,7(10):27-32
Based on the unique historical site culture assets, series of culture activities and constructions are held by Taiwan municipal government positively in recent years to raise local strength. Though the city landscape of Taiwan is far away from the traditional one, the comparison and analysis of foundation of cultural industry and the situation of cultural participation should be carried on to find out the real issues in Taiwan's cultural industry and cultural marketing so as to strengthen the ability of local development. This study finds out the resources of culture administration and the social participation in hope for clearing up the matters of Taiwan's cultural industry development, avoiding type Ⅲ errors, and giving suggestions. 相似文献
4.
Two standard‐setting approaches have emerged globally to guide the choice of accounting for securitizations: the control and components approach (SFAS No. 125 and SFAS No. 140) and the risks and rewards transfer approach (IAS No. 39). A lack of consensus about derecognition accounting is a major impediment to achieving convergence in global standards that must be resolved. Thus, both SFAS No. 140 and IAS No. 39 will be reexamined, and evidence pertinent to the debate is timely and important. In this study, we present evidence consistent with the view of credit‐rating analysts, who view many securitizations as, in substance, secured borrowings. Specifically, for a sample of originators applying sale accounting guidance in SFAS No. 125 / 140 during the period 1997‐2003, we show that off‐balance‐sheet debt related to securitizations has, on average, the same risk‐relevance for explaining market measures of risk (that is, CAPM beta) as on‐balance‐sheet debt. We also find that, in a returns and earnings association framework, the pricing multiple on securitization gains declines as the amount of off‐balance‐sheet debt increases, implying that investors take off‐balance‐sheet debt into account when assessing the valuation‐relevance of such gains. For those who advocate the control and components approach to securitization accounting, our results suggest that, at least for frequent securitizers, the put option arising from implicit recourse is a “missing piece” that is not currently accounted for when calculating securitization gains. Our results challenge the extant measurement standards in SFAS No. 140. 相似文献
5.
介绍了一种新型的BCH码的译码方法,并给出了该译码算法的FPGA器件实现方法。与传统的译码算法相比,该算法具有译码速度快、硬件实现复杂度低等优点,从而使得该译码器具有速度快、体积小、性能稳定等特点。 相似文献
6.
Rajan和Zingales提出了进入权理论,认为企业的权力来源于进入权,即对关键资源接触和使用的权力。本文结合会计师事务所的特征,在分析其关键资源的基础上,建议会计师事务所的股权应设置为财产股、岗位股、贡献股。 相似文献
7.
Korhonen Pekka Soismaa Margareta Siljamäki Aapo 《Journal of Productivity Analysis》2002,17(1-2):49-64
The purpose of this paper is to discuss the use of Value Efficiency Analysis (VEA) in efficiency evaluation when preference information is taken into account. Value efficiency analysis is an approach, which applies the ideas developed for Multiple Objective Linear Programming (MOLP) to Data Envelopment Analysis (DEA). Preference information is given through the desirable structure of input- and output-values. The same values can be used for all units under evaluation or the values can be specific for each unit. A decision-maker can specify the input- and output-values subjectively without any support or (s)he can use a multiple criteria support system to assist him/her to find those values on the efficient frontier. The underlying assumption is that the most preferred values maximize the decision-maker's implicitly known value function in a production possibility set or a subset. The purpose of value efficiency analysis is to estimate a need to increase outputs and/or decrease inputs for reaching the indifference contour of the value function at the optimum. In this paper, we briefly review the main ideas in value efficiency analysis and discuss practical aspects related to the use of value efficiency analysis. We also consider some extensions. 相似文献
8.
9.
10.
基于物联网的自动入库管理系统及其应用研究 总被引:5,自引:1,他引:5
利用RFID电子标签作为产品识别的手段,利用物联网来获取入库产品的详细信息并自动生成入库单,从而提出了基于物联网的自动入库管理系统的基本原理,对系统的结构和功能进行了分析,并通过应用实例说明了系统的优点。 相似文献