首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   127篇
  免费   0篇
财政金融   7篇
工业经济   11篇
计划管理   24篇
经济学   41篇
运输经济   1篇
旅游经济   1篇
贸易经济   22篇
农业经济   6篇
经济概况   14篇
  2024年   1篇
  2022年   1篇
  2021年   1篇
  2020年   5篇
  2019年   4篇
  2018年   4篇
  2017年   3篇
  2016年   7篇
  2015年   5篇
  2014年   6篇
  2013年   10篇
  2012年   7篇
  2011年   12篇
  2010年   7篇
  2009年   6篇
  2008年   5篇
  2007年   6篇
  2006年   6篇
  2005年   4篇
  2004年   1篇
  2003年   2篇
  2002年   3篇
  2001年   1篇
  2000年   1篇
  1999年   2篇
  1998年   1篇
  1995年   1篇
  1994年   1篇
  1993年   2篇
  1986年   1篇
  1985年   1篇
  1984年   2篇
  1983年   1篇
  1978年   1篇
  1977年   1篇
  1971年   1篇
  1970年   1篇
  1960年   1篇
  1959年   1篇
  1958年   1篇
排序方式: 共有127条查询结果,搜索用时 19 毫秒
91.
Zusammenfassung Bei der Beurteilung etwaiger leistungshemmender Wirkungen der Steuer- und Abgabensysteme muß insbesondere die Grenzabgabenbelastung analysiert werden; sie ist sowohl in Österreich als auch in der Bundesrepublik Deutschland in der jüngeren Vergangenheit stark angestiegen. Mit diesem Beitrag wird versucht, die gesamte Grenzabgabenbelastung (aus direkten und indirekten Steuern sowie Sozialabgaben) für beide Länder approximativ zu bestimmen. Dabei scheint der Vergleich zwischen Österreich und Deutschland besonders interessant zu sein, da es im Steuer- und Sozialrecht einerseits weitgehende Gemeinsamkeiten in der historischen Entwicklung gibt, andererseits aber auch grundlegende Divergenzen bestehen, so beispielsweise im unterschiedlichen Gewicht von direkter und indirekter Besteuerung. Über etwaige Wirkungszusammenhänge werden abschließend einige spekulative Überlegungen angestellt.  相似文献   
92.
The number young people not in education, employment or training (NEET) has been rising since the beginning of the economic and fi nancial crisis in 2008. This article contributes to the discussion about the reduction of the NEET rate by addressing the questions: Which structural factors can explain differences in the NEET rates among Austrian federal states? What causes an increased or reduced NEET risk at the individual level? What are the key factors for an exit from a NEET situation?  相似文献   
93.
The purpose of this article is to explore the opportunities virtual worlds offer for real-world innovations. By integrating users of virtual worlds into an interactive new product development process, companies can tap customers’ innovative potential using the latest technology. Connecting the emerging technology of virtual worlds with a customer-centric perspective of open innovation allows unique and inventive opportunities to capitalize on users’ innovative potential and knowledge. The concept of avatar-based innovation serves as a point of origin to reveal these possibilities and represents the first attempt to systematically take advantage of virtual worlds for innovation management. In doing so, this paper argues that latest advances of information and communication technologies enrich the interaction process and can improve new product development process. Further, characteristics are presented that suggest that the digital environment is especially conducive to innovation and creative tasks. Based on theoretical insights, the analysis of eight cases (Coca-Cola, Steelcase, Osram, Alcatel-Lucent, Toyota Scion, Endemol, Aloft, and Mazda), participant observation directly within the virtual world and 23 interviews with both managers and customers, this paper demonstrates how virtual worlds allow producers and consumers to swarm together with like-minded individuals to create new products and permits companies to find an audience to test, use, and provide feedback on the content and products they create. We highlight the active roles avatars can play throughout the whole innovation process, and demonstrate the opportunities of how manufacturers and customers could collaborate to innovate from idea to launch. A few pathfinding companies experiment with avatars as a source of innovation. Specifically, the initiatives of Osram, Steelcase, Mazda, and Toyota truly link the concepts of open innovation and virtual worlds to employ the interactive technology for new product development. These efforts are critically analyzed to examine the hypothesized potential of avatar-based innovation. The cases pinpoint practical implications and reveal both preconditions and challenges of this new approach to interactive new product development. The results suggest that in order to fully realize the potential of avatar-based innovation, companies need to create a compelling open innovation experience and consider the peculiarities of virtual worlds.  相似文献   
94.
    
Two of the experimental methods used to estimate willingness‐to‐pay (WTP) for a non‐market good, the Becker‐DeGroot‐Marschak (BDM) mechanism and the non‐hypothetical choice experiment (nHCE) often lead to significantly different WTP estimates, complicating the choice between the methods. In Zambia the same group of researchers used both techniques to evaluate WTP for orange maize, which provides more vitamin A than other varieties. This provided an opportunity to analyse the sources of the difference. In the BDM experiment, one group of respondents was provided with more training opportunities than the other, and made higher bids. Accounting for lexicographic behaviour in the nHCE reduced the estimated WTP. These two design factors together resulted in a decrease in the WTP difference for orange maize (1,279–632 ZMK) although the difference remains statistically significant. More training was also shown to eliminate the effects of different orders in which maize varieties were presented.  相似文献   
95.
96.
97.
Drawing on the current research in general leadership, we propose that a process ontology is relevant and rewarding for project leadership studies. We argue that project leadership can be studied as the ongoing social production of direction through the construction of actors’ space of action, involving continuous construction and reconstruction of (1) past project activities and events; (2) positions and areas of responsibility; (3) discarded, ongoing, and future issues; and (4) intensity, rhythm, and pace. Through an ethnographic case study of an organizational change project, we show how space of action and hence the project direction are in constant flux and becoming.  相似文献   
98.
    
In the last two decades, several methods for estimating Value at Risk have been proposed in the literature. Four of the most successful approaches are conditional autoregressive Value at Risk, extreme value theory, filtered historical simulation and time‐varying higher order conditional moments. In this paper, we compare their performances under both an empirical investigation using 80 assets and a large Monte Carlo simulation. From our analysis, we conclude that most of the methods seem not to imply huge numerical difficulties and, according to usual backtests and performance measurements, extreme value theory presents the best results most of the times, followed by filtered historical simulation.  相似文献   
99.
We apply a structural vectorautoregressive analysis to decompose fluctuations in the growth rate of industrial production and inflation precipitated by the COVID-19 pandemic in the USA into aggregate demand, aggregate supply, and uncertainty shocks. While all three types of shocks contributed to output and inflation dynamics, the surge in economic uncertainty contributed to the decline in output more strongly than aggregate demand or aggregate supply disruptions. In 2021, the decline in uncertainty and adverse aggregate supply shocks emerged to be similarly important in spurring inflation.  相似文献   
100.
This paper investigates the effect of adverse selection on the private annuity market in a model with two periods of retirement and two types of individuals, who differ in their life expectancy. In order to introduce the existence of time-limited pension insurance, we consider a model where for each period of retirement separate contracts can be purchased. Demand for the two periods can be decided sequentially or simultaneously. We show that only a situation where all risk types choose sequential contracts is an equilibrium and that this outcome is favourable for the long-living, but is unfavourable for the short-living individuals. JEL Classification D82 · D91 · G22  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号