全文获取类型
收费全文 | 13717篇 |
免费 | 339篇 |
国内免费 | 1篇 |
专业分类
财政金融 | 2498篇 |
工业经济 | 1020篇 |
计划管理 | 2244篇 |
经济学 | 2920篇 |
综合类 | 110篇 |
运输经济 | 86篇 |
旅游经济 | 192篇 |
贸易经济 | 2147篇 |
农业经济 | 822篇 |
经济概况 | 1972篇 |
信息产业经济 | 1篇 |
邮电经济 | 45篇 |
出版年
2021年 | 88篇 |
2020年 | 125篇 |
2019年 | 208篇 |
2018年 | 305篇 |
2017年 | 287篇 |
2016年 | 291篇 |
2015年 | 187篇 |
2014年 | 308篇 |
2013年 | 1180篇 |
2012年 | 417篇 |
2011年 | 402篇 |
2010年 | 330篇 |
2009年 | 408篇 |
2008年 | 396篇 |
2007年 | 357篇 |
2006年 | 330篇 |
2005年 | 289篇 |
2004年 | 295篇 |
2003年 | 301篇 |
2002年 | 293篇 |
2001年 | 252篇 |
2000年 | 282篇 |
1999年 | 241篇 |
1998年 | 228篇 |
1997年 | 211篇 |
1996年 | 227篇 |
1995年 | 198篇 |
1994年 | 213篇 |
1993年 | 215篇 |
1992年 | 226篇 |
1991年 | 223篇 |
1990年 | 223篇 |
1989年 | 191篇 |
1988年 | 163篇 |
1987年 | 158篇 |
1986年 | 181篇 |
1985年 | 257篇 |
1984年 | 244篇 |
1983年 | 211篇 |
1982年 | 206篇 |
1981年 | 207篇 |
1980年 | 202篇 |
1979年 | 195篇 |
1978年 | 170篇 |
1977年 | 162篇 |
1976年 | 159篇 |
1975年 | 154篇 |
1974年 | 120篇 |
1973年 | 118篇 |
1972年 | 106篇 |
排序方式: 共有10000条查询结果,搜索用时 46 毫秒
191.
Janusz A. Holyst Tilo Hagel Günter Haag Wolfgang Weidlich 《Journal of Evolutionary Economics》1996,6(1):31-42
An economic system which exhibits chaotic behaviour has been stabilized on various periodic orbits by use of the Ott-Grebogi-Yorke method. This procedure has been recently applied to controlling chaotic phenomena in physical, chemical and biological systems. We adopt this method successfully for Feichtinger's generic model of two competing firms with asymmetrical investment strategies. We show that the application of this control method to the particular economic process considered brings a substantial advantage: one can easily switch from a chaotic trajectory to a regular periodic orbit and simultaneously improve the system's economic properties. Numerical simulations are presented in order to illustrate the effectiveness of the whole procedure.The work was supported by the Alexander von Humboldt-Stiftung and by the Polish National Council (KBN) Grant No 2 P302 038 04. 相似文献
192.
This paper focuses on problems associated with nonresponse in Contingent Valuation surveys. The results from a telephone follow-up survey show that value inference can be considerably improved by information on nonrespondents' attitudes. 相似文献
193.
Walter G. Park 《Journal of Macroeconomics》1997,19(4):753-769
This paper tests the permanent income hypothesis (PIH) for public consumption. Unlike private agents, a government is a representative national, infinitely-lived agent that usually faces no liquidity constraints. Thus, the expectation is that the PIH restrictions should not be rejected for public consumption. However, using U.S. data, the paper is unable to find evidence supporting the permanent income model of public consumption. Public consumption is found to be sensitive to lagged public income and too smooth relative to permanent public income. The results therefore cast doubt on the characterization of the public sector as a social welfare optimizing agent. 相似文献
194.
195.
196.
197.
Cost Heterogeneity and the Potential Savings from Market-Based Policies 总被引:10,自引:0,他引:10
Policy makers and analysts are often faced with situations where it is unclear whether market-based instruments hold real promise of reducing costs, relative to conventional uniform standards. We develop analytic expressions that can be employed with modest amounts of information to estimate the potential cost savings associated with market-based policies, with an application to the environmental policy realm. These simple formulae can identify instruments that merit more detailed investigation. We illustrate the use of these results with an application to nitrogen oxides control by electric utilities in the United States. 相似文献
198.
199.
A Survey and a Theoretical Model of Distance Education Programs 总被引:1,自引:0,他引:1
Reza G. Hamzaee 《International Advances in Economic Research》2005,11(2):215-229
In search of a distance education programs crucial success factors, this research was conducted through a designed survey and evaluation instrument, for a predominantly doctoral program at DE University (DEU, an adopted name). Also, the survey has identified some challenging factors along with students most crucial reasons for adopting distance education programs. The author has presented a Testable theoretical model of distance education programs. The top four success factors were revealed to be program quality, general recognition and academic integrity, students satisfaction, and students progress toward the ultimate goal of graduation. Lack of time and worries about the degree recognition by prospective academic and nonacademic employers were the most crucial challenging factors.The 57th International Atlantic Economic Conference Lisbon, Portugal, March 10–14. This research is appreciably funded by a research grant from Walden University. 相似文献
200.
We examine the determinants of the choice between rate-of-return regulation and incentive regulation in the United States telecommunications industry. We find that a state is more likely to select incentive regulation in any year: (1) when it has employed incentive regulation in the past; (2) when the Republican party controls both the executive and the legislative branches of the state government, but the Democratic party has controlled these branches historically; and (3) as the firms earnings under rate-of-return regulation increase toward the industry average. We also find that appointed regulators are more likely than their elected counterparts to revert to rate-of-return regulation. 相似文献