全文获取类型
收费全文 | 5276篇 |
免费 | 15篇 |
国内免费 | 8篇 |
专业分类
财政金融 | 1060篇 |
工业经济 | 286篇 |
计划管理 | 656篇 |
经济学 | 1161篇 |
综合类 | 279篇 |
运输经济 | 48篇 |
旅游经济 | 23篇 |
贸易经济 | 1182篇 |
农业经济 | 127篇 |
经济概况 | 470篇 |
信息产业经济 | 3篇 |
邮电经济 | 4篇 |
出版年
2023年 | 3篇 |
2022年 | 18篇 |
2021年 | 30篇 |
2020年 | 9篇 |
2019年 | 7篇 |
2018年 | 169篇 |
2017年 | 168篇 |
2016年 | 167篇 |
2015年 | 35篇 |
2014年 | 28篇 |
2013年 | 79篇 |
2012年 | 212篇 |
2011年 | 489篇 |
2010年 | 278篇 |
2009年 | 163篇 |
2008年 | 262篇 |
2007年 | 114篇 |
2006年 | 212篇 |
2005年 | 1080篇 |
2004年 | 730篇 |
2003年 | 282篇 |
2002年 | 103篇 |
2001年 | 92篇 |
2000年 | 43篇 |
1999年 | 104篇 |
1998年 | 32篇 |
1997年 | 34篇 |
1996年 | 20篇 |
1994年 | 10篇 |
1993年 | 48篇 |
1992年 | 56篇 |
1991年 | 60篇 |
1990年 | 12篇 |
1989年 | 29篇 |
1988年 | 31篇 |
1987年 | 21篇 |
1986年 | 3篇 |
1985年 | 13篇 |
1984年 | 13篇 |
1983年 | 4篇 |
1982年 | 3篇 |
1981年 | 3篇 |
1979年 | 4篇 |
1976年 | 3篇 |
1975年 | 5篇 |
1974年 | 6篇 |
1973年 | 2篇 |
1967年 | 3篇 |
1964年 | 1篇 |
1959年 | 1篇 |
排序方式: 共有5299条查询结果,搜索用时 15 毫秒
91.
Vijay Mahajan Herman W. Lay Chair Professor of Marketing 《Technological Forecasting and Social Change》1985,28(1):13-27
In order to assess the impact of patent infringement on the growth of a new product, a model is developed through the intervention model development processes of Box-Jenkins and Box-Tiao. Physical interpretations of model parameters and determination of associated damages suggest that the model can provide a sound basis for analyzing patent infringement disputes. 相似文献
92.
Synopsis This paper is the product of a collaboration between a biologist (Ghiselin 1997) who works on the philosophy of classification
and an economist (Landa 1981, 1994) who works on the ‘Economics of Identity’: how and why people classify people based on
identity in the context of a theory of ethnic trading networks. In developing the ‘bioeconomics’ (the synthesis of economics
with biology) of classification, we crossed a number of disciplinary boundaries—anthropology, economics, sociology, biology,
and cognitive psychology including evolutionary psychology’s ‘fast and frugal’ heuristics. Using a bioeconomics approach,
we argue that folk classifications—the classifications used by ordinary persons—have much in common with scientific classifications:
underlying both is the need for economy of information processing in the brain, for the efficient organization of knowledge,
and for efficiency of information acquisition and transmission of information to others. Both evolve as a result of trial
and error, but in science there is relatively more foresight, understanding, and planning. 相似文献
93.
Var模型与我国的金融风险管理 总被引:3,自引:0,他引:3
张贤云 《南京财经大学学报》2004,(5):41-43
Var模型作为金融风险量化管理的有效方法,在国际金融界得到了广泛的认同和应用。本文介绍了Var模型的基本思想及Var值估算的三种具体方法,并对Var模型在中国金融风险管理中的应用前景进行了分析和展望。 相似文献
94.
The Application of Mathematical Programming Approaches to Estimating Container Port Production Efficiency 总被引:1,自引:0,他引:1
Kevin?CullinaneEmail author Dong-Wook?Song Tengfei?Wang 《Journal of Productivity Analysis》2005,24(1):73-92
Container terminal production is both an important and complicated element in the contemporary global economy. This paper aims to evaluate the efficiency of the world’s most important container ports and terminals using the two alternative techniques of Data Envelopment Analysis (DEA) and the Free Disposal Hull (FDH) model. The results give an insight into the current efficiency ranking of the world’s major container ports and terminals. They also confirm expectations that the available mathematical programming methodologies lead to different results and that appropriate variable definition of input and output factors is a crucial element in meaningful applications of DEA and FDH. It is also concluded that the availability of panel data, rather than cross-sectional data would greatly improve the validity of the efficiency estimates derived from all the mathematical programming techniques applied.JEL Classification:C61, D24, E23, L23, L25, L92 相似文献
95.
H.?Kent?BakerEmail author Gary?E.?Powell E.?Theodore?Veit 《Journal of Economics and Finance》2002,26(3):267-283
We survey managers of Nasdaq firms that consistently pay cash dividends to determine their views about dividend policy, the
relationship between dividend policy and value, and four common explanations for paying dividends. The evidence shows that
managers stress the importance of maintaining dividend continuity and widely agree that changes in dividends affect firm value.
Managers give the strongest support to a signaling explanation for paying dividends, weak to little support for the tax-preference
and agency cost explanations, and no support to the bird-in-the-hand explanation. The study provides new evidence about how
managers view dividend life cycles and residual dividend policy.
The authors would like to thank two anonymous referees for helpful comments and suggestions, and Maheshan Fernando and Sumeet
Chawla for providing research assistance. 相似文献
96.
Let X (r, n, m, k), 1 r n, denote generalized order statistics based on an absolutely continuous distribution function F. We characterize all distribution functions F for which the following linearity of regression holds
E(X(r+l,n,m,k) | X(r,n,m,k))=aX(r,n,m,k)+b.We show that only exponential, Pareto and power distributions satisfy this equation. Using this result one can obtain characterizations of exponential, Pareto and power distributions in terms of sequential order statistics, Pfeifers records and progressive type II censored order statistics.
Received July 2001/Revised August 2002 相似文献
97.
我国证券市场风险收益特征的行为基础 总被引:2,自引:0,他引:2
海通证券公司研究所联合课题组 《经济理论与经济管理》2003,(7):27-32
我国证券市场的风险收益具有以下特征:(1)资本资产定价模型所揭示的风险收益关系在我国股市并不显著。(2)我国证券市场系统性风险占整体风险的比例较高。(3)从趋势上看,无论个股还是行业系统性风险占整体风险的指标没有明显的下降趋势。这些特征根源于我国特定的投资者结构以及不同投资者的风险厌恶特性和对私人信息的偏好特性。因此,投资者应针对上述特征,在集中投资、反向交易和降低交易频率等方面调整交易策略,提高投资收益率。 相似文献
98.
99.
Ben?GroomEmail author Cameron?Hepburn Phoebe?Koundouri David?Pearce 《Environmental and Resource Economics》2005,32(4):445-493
The last few years have witnessed important advances in our understanding of time preference and social discounting. In particular, several rationales for the use of time-varying social discount rates have emerged. These rationales range from the ad hoc to the formal, with some founded solely in economic theory while others reflect principles of intergenerational equity. While these advances are to be applauded, the practitioner is left with a confusing array of rationales and the sense that almost any discount rate can be justified. This paper draws together these different strands and provides a critical review of past and present contributions to this literature. In addition to this we highlight some of the problems with employing DDRs in the decision-making process, the most pressing of which may be time inconsistency. We clarify their practical implications, and potential pitfalls, of the more credible rationales and argue that some approaches popular in environmental economics literature are ill-conceived. Finally, we illustrate the impact of different approaches by examining global warming and nuclear power investment. This includes an application and extension of Newell and Pizer [‘Discounting the benefits of climate change mitigation : how much do uncertain rates increase valuations?’ Journal of Environmental Economics and Management 46 (2003) 52] to UK interest rate data. 相似文献
100.
In this paper I analyze the impact of regulatory policy on prices and demand for mobile telecommunications services across the European Union. I estimate a reduced form model of the mobile industry using panel data for the EU countries from 1998 to 2002. Among others, I find the following effects: liberalization of fixed telephone lines has a negative impact on prices and a positive impact on the demand for mobile services, and the introduction of mobile number portability has a negative impact on prices.*I am grateful to Toker Doganoglu, Gerd Hansen, Eric Kodjo Ralph, Guido Friebel, participants at the 30th EARIE Conference 2003, the 2nd International Industrial Organization Conference 2004 and the 19th Annual Congress of the EEA 2004, and anonymous referees for valuable comments. I would like to acknowledge the generous financial support from the Volkswagen Stiftung and the Munich Graduate School of Economics which made this research possible. All errors are mine.1 Source: European Commission (1994). 相似文献