全文获取类型
收费全文 | 1705篇 |
免费 | 70篇 |
专业分类
财政金融 | 251篇 |
工业经济 | 91篇 |
计划管理 | 331篇 |
经济学 | 385篇 |
综合类 | 7篇 |
运输经济 | 11篇 |
旅游经济 | 22篇 |
贸易经济 | 281篇 |
农业经济 | 67篇 |
经济概况 | 329篇 |
出版年
2021年 | 18篇 |
2020年 | 31篇 |
2019年 | 41篇 |
2018年 | 54篇 |
2017年 | 52篇 |
2016年 | 47篇 |
2015年 | 31篇 |
2014年 | 43篇 |
2013年 | 218篇 |
2012年 | 65篇 |
2011年 | 67篇 |
2010年 | 64篇 |
2009年 | 71篇 |
2008年 | 63篇 |
2007年 | 80篇 |
2006年 | 53篇 |
2005年 | 45篇 |
2004年 | 45篇 |
2003年 | 37篇 |
2002年 | 37篇 |
2001年 | 31篇 |
2000年 | 28篇 |
1999年 | 35篇 |
1998年 | 28篇 |
1997年 | 26篇 |
1996年 | 20篇 |
1995年 | 15篇 |
1994年 | 13篇 |
1993年 | 19篇 |
1992年 | 13篇 |
1991年 | 13篇 |
1990年 | 14篇 |
1989年 | 11篇 |
1987年 | 10篇 |
1985年 | 14篇 |
1984年 | 11篇 |
1983年 | 17篇 |
1982年 | 16篇 |
1981年 | 10篇 |
1980年 | 21篇 |
1979年 | 17篇 |
1978年 | 13篇 |
1977年 | 10篇 |
1975年 | 13篇 |
1971年 | 9篇 |
1967年 | 8篇 |
1963年 | 11篇 |
1962年 | 8篇 |
1961年 | 11篇 |
1960年 | 9篇 |
排序方式: 共有1775条查询结果,搜索用时 31 毫秒
991.
992.
Van Kolpin 《The Journal of economic education》2018,49(2):142-150
The derivation of conditions necessary for Pareto efficient production and exchange is a lesson frequently showcased in microeconomic theory textbooks. Traditional delivery of this lesson is, however, limited in its scope of application and can be unnecessarily convoluted. The author shows that the universe of application is greatly expanded and a more transparent logic is embraced by noting that definition of Pareto efficiency directly implies the tangency of aggregate production/endowment and aggregate weakly preferred sets. This tangency condition can itself serve as a necessary condition for Pareto optima. For convex, but not necessarily differentiable, environments this tangency condition implies nonempty intersection of multi-valued marginal rates of substitution and transformation rather than outright identity. 相似文献
993.
D. Thorleuchter Author Vitae D. Van den Poel Author Vitae 《Technological Forecasting and Social Change》2010,77(7):1037-2605
The planning of technological research and development (R&D) is demanding in areas with many relationships between technologies. To support decision makers of a government organization with R&D planning in these areas, a methodology to make the technology impact more transparent is introduced. The method shows current technology impact and impact trends from the R&D of an organization's competitors and compares these to the technology impact and impact trends from the organization's own R&D. This way, relative strength, relative weakness, plus parity of the organization's R&D activities in technology pairs can be identified.A quantitative cross impact analysis (CIA) approach is used to estimate the impact across technologies. Our quantitative CIA approach contrasts to standard qualitative CIA approaches that estimate technology impact by means of literature surveys and expert interviews. In this paper, the impact is computed based on the R&D information regarding the respective organization on one hand, and based on patent data representative regarding R&D information of the organization's competitors on the other hand. As an illustration, the application field ‘defence’ is used, where many interrelations and interdependencies between defence-based technologies occur. Firstly, an R&D-based and patent-based Compared Cross Impact (CCI) among technologies is computed. Secondly, characteristics of the CCI are identified. Thirdly, the CCI data is presented as a network to show the overall structure and the complex relationships between the technologies. Finally, changes of the CCI are analyzed over time. The results show that the proposed methodology has the potential to generate useful insights for government organizations to help direct technology investments. 相似文献
994.
This contribution provides a way to define and compute a tangency notion of economic capacity based upon the relation between the various directional distance functions and the profit and cost functions using non-parametric technologies. A new result relating profit and cost function-based tangency capacity notions is established. 相似文献
995.
Thabo M. Mokoena Rangan Gupta Reneé Van Eyden 《The South African journal of economics. Suid-afrikaanse tydskrif vir ekonomie》2009,77(4):531-537
This paper utilises “a class test for fractional integration” associated with the seminal contribution of Hinich and Chong to appraise the possibility that Southern African Development Community (SADC) real exchange rates can be treated as long memory processes. The justification for considering fractional integration is that the general failure to reject the unit‐root hypothesis in real exchange rates is caused by the restrictiveness of standard unit‐root tests regarding admissible low‐frequency dynamic behaviour. The paper presents evidence that, except for South Africa, none of the SADC real exchange rates are fractionally integrated. However, the results are found to be sensitive to the size of the sample. 相似文献
996.
Christine Hoefkens Prakashan Chellattan Veettil Guido Van Huylenbroeck John Van Camp Wim Verbeke 《Food Policy》2012
Worksite and university canteens are increasingly used for daily main meal consumption. Following the use of front-of-pack nutrition labels on pre-packed foods, the provision of easily accessible nutrition information on foods prepared and consumed out of home is a highly topical policy issue with the potential to help consumers making better informed and more healthy food choices when eating out. Information that is presented in a format preferred by the target group is more likely to be used. A sample of 1725 university canteen users participated in a web-based choice experiment designed to identify and understand individual preferences for alternative nutrition labels on canteen meals. Participants valued the presence of nutrition labels on canteen meals and showed a preference for more detailed formats. Ability and motivation to process information as well as socio-demographics explained differences in label preferences. Observed decreasing marginal utility from combinations of two simple label formats as well as from combinations of two detailed formats, signalled information insufficiency versus information overload, respectively. In order to satisfy most canteen users’ information needs, a nutrition label that contains basic Guideline Daily Amount (GDA)-type of numerical information in combination with familiar visual aids like stars and colour codes is proposed to be used in university canteens. 相似文献
997.
Disclosure frequency and information asymmetry 总被引:3,自引:3,他引:0
Andrew Van Buskirk 《Review of Quantitative Finance and Accounting》2012,38(4):411-440
The main purpose of this paper is to investigate whether more frequent disclosure by firms is associated with lower levels of information asymmetry among investors. Using a panel of 386 firms in the US retail sector, I find that the practice of regularly providing monthly revenue disclosures is not associated with reduced information asymmetry. In contrast, I find that more detailed (greater quantity) disclosure is associated with reduced information asymmetry. I provide preliminary evidence that the distinction between disclosure frequency and disclosure quantity is due to more frequent disclosure providing an incentive for increased private information acquisition by sophisticated investors. The results indicate that the relation between disclosure and information asymmetry is multi-dimensional and varies depending on the disclosure attribute being studied. 相似文献
998.
999.
P. Marijn Poortvliet Frederik Anseel Onne Janssen Nico W. Van Yperen Evert Van de Vliert 《Journal of Business Ethics》2012,106(4):401-414
We argue and demonstrate that an emphasis on outperforming others may lead to perverse effects. Four studies show that assigning
other-referenced performance goals, relative to self-referenced mastery goals, may lead to more interpersonally harmful behavior
in an information exchange context. Results of Study 1 indicate that assigned performance goals lead to stronger thwarting
behavior and less accurate information giving to an exchange partner than assigned mastery goals. Similarly, in Study 2 performance
goal individuals more subtly deceived highly competent opponents relative to lowly competent opponents, who received more
blatant treatment. Finally, Studies 3 and 4 show in methodologically complementary ways that tactical deception considerations
may account for the interpersonally harmful behavior of performance goal individuals. 相似文献
1000.
Koert Van Ittersum 《Marketing Letters》2012,23(1):263-277
This research demonstrates that decision makers?? time perspective??a cognitive, temporal bias that leads people to overemphasize the past, present, or future in their decision making??systematically influences self-reported behavioral intentions and thus intention?Cbehavior consistency for distant-future behaviors. Whereas present-hedonistic individuals overstate their intentions, present-fatalistic individuals understate theirs, so both types exhibit low intention?Cbehavior consistency. Future time-oriented individuals instead exhibit high intention?Cbehavior consistency because they are less likely to overstate their intentions. The findings are contributed to decision makers?? time perspective influencing the construal of distant-future behavior when reporting behavioral intentions. Accounting for decision makers?? time perspectives helps improve predictive accuracy and may change insights obtained from causal models that use self-reported intentions as a proxy for actual, distant-future behavior. 相似文献