全文获取类型
收费全文 | 14492篇 |
免费 | 308篇 |
国内免费 | 39篇 |
专业分类
财政金融 | 2573篇 |
工业经济 | 541篇 |
计划管理 | 2617篇 |
经济学 | 3338篇 |
综合类 | 1258篇 |
运输经济 | 184篇 |
旅游经济 | 458篇 |
贸易经济 | 2060篇 |
农业经济 | 481篇 |
经济概况 | 1329篇 |
出版年
2024年 | 21篇 |
2023年 | 285篇 |
2022年 | 334篇 |
2021年 | 519篇 |
2020年 | 698篇 |
2019年 | 518篇 |
2018年 | 467篇 |
2017年 | 523篇 |
2016年 | 484篇 |
2015年 | 382篇 |
2014年 | 956篇 |
2013年 | 1152篇 |
2012年 | 847篇 |
2011年 | 1077篇 |
2010年 | 756篇 |
2009年 | 851篇 |
2008年 | 862篇 |
2007年 | 902篇 |
2006年 | 890篇 |
2005年 | 560篇 |
2004年 | 380篇 |
2003年 | 362篇 |
2002年 | 257篇 |
2001年 | 155篇 |
2000年 | 116篇 |
1999年 | 70篇 |
1998年 | 60篇 |
1997年 | 42篇 |
1996年 | 43篇 |
1995年 | 28篇 |
1994年 | 41篇 |
1993年 | 15篇 |
1992年 | 15篇 |
1991年 | 7篇 |
1990年 | 6篇 |
1989年 | 7篇 |
1988年 | 5篇 |
1987年 | 1篇 |
1986年 | 2篇 |
1985年 | 41篇 |
1984年 | 38篇 |
1983年 | 25篇 |
1982年 | 14篇 |
1981年 | 9篇 |
1980年 | 6篇 |
1979年 | 6篇 |
1978年 | 3篇 |
1977年 | 1篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
81.
近几年的几场局部战争部分表明了现代军事航天系统的重要性。本文主要介绍了美国最重要的一个军事航天测控网--空军卫星控制网的情况,希望能对了解美国军事航天测控体制有所帮助。 相似文献
82.
Recently, much of the research into the relation between market values and accounting numbers has used, or at least made reference to, the residual income model (RIM). Two basic types of empirical research have developed. The “historical” type explores the relation between market values and reported accounting numbers, often using the linear dynamics in Ohlson 1995 and Feltham and Ohlson 1995 and 1996. The “forecast” type explores the relation between market value and the present value of the book value of equity, a truncated sequence of residual income forecasts, and an estimate of the terminal value at the truncation date. The analysis in this paper integrates these two approaches. We expand the Feltham and Ohlson 1996 model by including one‐ and two‐period‐ahead residual income forecasts to infer “other” information regarding future revenues from past investments and future growth opportunities. This approach results in a model in which the difference between market value and book value of equity is a function of current residual income, one‐ and two‐period‐ahead residual income, current capital investment, and start‐of‐period operating assets. The existence of both persistence in revenues from current and prior investments and growth in future positive net present value investment opportunities leads us to hypothesize a negative coefficient on the one‐period‐ahead residual income forecast and a positive coefficient on the two‐period‐ahead residual income forecast. Our empirical results strongly support our hypotheses with respect to the forecast coefficients. 相似文献
83.
Monopoly, competition and information acquisition 总被引:1,自引:0,他引:1
Magdalena Dimitrova Edward E. Schlee 《International Journal of Industrial Organization》2003,21(10):1623-1642
An incumbent monopolist is uncertain about its linear demand, but can acquire public information at a cost. We determine how an entry threat affects the firm's information acquisition. If returns to scale are constant and the state-contingent demands become more dispersed as output increases, then entry reduces information acquisition. If, however, either the incumbent or entrant has increasing returns; or if the state-contingent demands are nonlinear or fail increasing dispersion, then entry can increase information. Finally, entry can hurt consumers. Although entry always increases output, it can decrease information. Consumers sometimes prefer a better informed monopoly to a duopoly. 相似文献
84.
85.
86.
Weiguo Zhang Weidong Ding 《美中经济评论(英文版)》2004,3(9):66-69
In the information era, China's logistics industry faces a development opportunity, as well,as an austere challenge. In order to establish a reasonable strategy in China, it is very important to analyze the logistics industry's operation circumstances with a global and informational perception. For this reason, this article analyzes the current situation of China's logistics industry, identifies the existing problems, and further finds the possible solutions in present China. 相似文献
87.
Yoshiharu Takamura 《Socio》2003,37(2):85-102
As a national project of Japan, plans for the relocation of several government agencies out of Tokyo have been ongoing. This paper is concerned with the problem of site selection for this project. The National Land Agency, the agency responsible for this project, has declared that the process of site selection should be rational, open to the public and easily understandable. In an effort to meet these requirements, we propose a consensus-making method for reaching a group decision, based on a combination of the analytic hierarchy process (AHP) and the Assurance Region model of data envelopment analysis (DEA). Several strategic uses of these methodologies, e.g., Delphi procedures, are also discussed. Based on these analyses, the “Wise Men” Committee for deciding the best site has chosen two from among ten contenders, one from the North-East and the other from the Central part of Japan, as candidates for the best relocation site. We could not discriminate between the two with respect to the multiple criteria chosen for evaluating sites. The Committee recommended the two sites to the Prime Minister at the end of December 1999. The Prime Minister reported this conclusion to the Diet. This topic is currently the focus of political discussions in the Diet. In this report, the authors summarize the decision-making processes that the Wise Men Committee followed, putting emphasis on the methodological aspects. 相似文献
88.
John Staunton 《Abacus》2003,39(3):398-414
The type of reporting found in corporate governance includes financial reporting, but over time various arguments have developed regarding a tension found between conventional and financial type reporting, especially as to the role of financial statements. Further tensions follow from the introduction of economic and social issues within both conventional accounting and financial reports.
This article argues that distinct, though related, frameworks at particular levels are required. The mingling of conventional accounting with financial and economic ideas and issues is evident in the conceptual framework (CF) project where there is reference to economic benefits and costs in making economic decisions for the allocation of resources. This results in a misconception of the function of these distinct types of information. An unravelling of particular issues will require a Statement of Accounting Concepts (SAC) for Level 1 of the CF. 相似文献
This article argues that distinct, though related, frameworks at particular levels are required. The mingling of conventional accounting with financial and economic ideas and issues is evident in the conceptual framework (CF) project where there is reference to economic benefits and costs in making economic decisions for the allocation of resources. This results in a misconception of the function of these distinct types of information. An unravelling of particular issues will require a Statement of Accounting Concepts (SAC) for Level 1 of the CF. 相似文献
89.
信息不对称严重阻碍了农业保险的健康发展,建议通过建立克服农业保险中信息不对称的有效体系,以促进我国农业保险的健康发展。 相似文献
90.
Received March 5, 2001; revised version received August 5, 2002
Published online: April 30, 2003 相似文献