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   116篇
  免费   6篇
财政金融   19篇
计划管理   16篇
经济学   45篇
综合类   1篇
贸易经济   11篇
农业经济   6篇
经济概况   15篇
信息产业经济   9篇
  2020年   4篇
  2019年   5篇
  2018年   6篇
  2017年   3篇
  2016年   11篇
  2015年   3篇
  2014年   12篇
  2013年   11篇
  2012年   5篇
  2011年   6篇
  2010年   9篇
  2009年   11篇
  2008年   6篇
  2007年   2篇
  2006年   3篇
  2004年   1篇
  2003年   1篇
  2001年   4篇
  2000年   3篇
  1999年   2篇
  1995年   1篇
  1994年   1篇
  1988年   1篇
  1985年   2篇
  1984年   1篇
  1983年   2篇
  1981年   1篇
  1978年   1篇
  1977年   2篇
  1975年   1篇
  1969年   1篇
排序方式: 共有122条查询结果,搜索用时 15 毫秒
91.
In this article the author studies the properties of the two-step estimation method proposed by Domencich and McFadden (Urban Travel Demand, North-Holland, 1975) for a multivariate logit model and shows that it is consistent but asymptotically less efficient than the maximum likelihood estimator. Its computation, however, can be considerably simpler than that of the maximum likelihood estimator, especially in models involving several dependent variables.  相似文献   
92.
This paper re-examines the intersecurity wealth effects of leverage-reducing exchange offer (LREO) announcements. We show that previous studies may have been confounded by not distinguishing between two types of LREOs – swaps and exchange offers – and by the limited availability of bond data to properly test the wealth transfer effect. Contrary to extant research, we find evidence supportive of the wealth transfer hypothesis in the case of exchange offers but not swap offers. More detailed analysis of LREO exchange offers reveals a systematic relationship between bond returns and certain attributes that capture managerial inclination to accede to bondholder interests, consistent with a wealth transfer effect.  相似文献   
93.
Previous research has shown that salesperson burnout affects sales productivity, employee retention, and job satisfaction. Although burnout has often been conceptualized as a multiple‐component construct, research typically has approached the efficacy of burnout reduction techniques by using overall measures of burnout rather than by examining the effects of such techniques on individual burnout components. The present research investigates how social support and choice of coping strategy relate to burnout components, illustrating the need to consider such components when conducting burnout‐related research. © 2000 John Wiley & Sons, Inc.  相似文献   
94.
To support elementary school teachers in teaching by encouraging active learning while maintaining the interest of pupils, this study focuses on supporting teaching, learning, and monitoring the progress of students through a Teacher–Robot collaboration lesson application using not only laptops and tablets, but also robots and sensors. Since developing a lesson application is time consuming for teachers, we have developed an integrated intelligent application development platform named PRactical INTElligent aPplicationS (PRINTEPS) to aid Teacher–Robot collaboration. However, several functions and interfaces for education are missing. Therefore, in this study, we extend several functions for education to PRINTEPS. In addition, since it is necessary in learning and monitoring the progress of students to present learning content suitable to each pupil’s level of understanding, we also have provided support through the use of a tablet quiz system based on ontologies and rule bases. In the case study, we developed a Teacher–Robot collaboration lesson application and conducted lessons for sixth-grade pupils at an elementary school. From the case study, we have confirmed the effectiveness of our platform and the application.  相似文献   
95.
In the 1980s, tax policy changes mitigated the redistributive effect of income tax. The present study attempts to explore how different the redistributive effect of the income tax reforms in Japan is among age groups, using Japanese household microdata for the period 1984–2009. The following results are obtained. First, the overall redistributive effect was greatest for the elderly group, followed by the middle‐aged group, and then the young group. Furthermore, this trend increased steadily over time. Second, the difference in total redistributive effects between the young and elderly increased owing to a large reduction in the base effect for the young.  相似文献   
96.
This paper uses both a non‐structural and a structural approach to investigate the drivers of the business cycles in the US and 15 Trans‐Pacific (TP) countries. Our non‐structural analysis, based on a principal component methodology, reveals the shares of variation in macroeconomic variables that are due to factors common to both the US and the TP region, and factors that are region‐specific. We obtain similar measures by using a structural model (an estimated two‐country dynamic stochastic general equilibrium model) that allows for common and correlated shocks across the two regions. The clear and common finding from our analyses is that common shocks explain a substantial amount of macroeconomic variation. Comparison with the NAFTA region, along this dimension, reveals that the US economy is more similar to the TP region (a wider region that also includes Mexico and Canada) than its two neighbours.  相似文献   
97.
Taxis are considered one of the most convenient means of transportation, especially when people have to travel off-route, where public transportation is not a feasible option, and also when they need to reach a destination according to what is most convenient for them. However, many issues exist about taxi services, such as the problems of passengers who are unable to get taxi service at the location of their choice, or problems concerning when they need the taxi service to arrive. These problems may be due to the unavailability of the taxi at that particular location or due to the taxi driver not wanting to provide service. A taxi driver may not want to provide service to a potential passenger, because they may have preferences on the direction and areas they want to go or because of the different types of service zoning. Understanding the behaviors of taxi drivers and the characteristics of the trip/travel might be helpful to solving such issues. In this study, we conducted an analysis from a questionnaire survey and large-scale taxi probe data to understand taxi service behavior, travel characteristics, and to discover taxi service zoning characteristics. As a result, four types of taxi service zones including isolated zones, interactive zones, special service zones, and target zones were encountered. Travel characteristics were calculated and analyzed at different criteria, such as weekdays, weekends, and various time windows in a single day. The result of these characteristics was explained according to their similarities and dissimilarities in each type of zone. The discovery of the different zones and their respective definitions might be a good initiative for further development of a policy for taxi drivers to provide better service for passengers.  相似文献   
98.
Although AI and service robot applications have become very popular in many domains recently, many of them are specific applications and it is still difficult to develop integrated intelligent applications such as a robot teahouse and teaching assistant robots. To develop such integrated intelligent applications, we need integrated intelligent application platforms that have AI integration and agile process facilities. From the above background, we are currently developing PRactical INTElligent aPplicationS (PRINTEPS), which is a platform for developing integrated intelligent applications by combining only five types of modules, namely knowledge-based reasoning, spoken dialogue, image sensing, motion management, and machine learning. This paper proposes a workflow editor in PRINETPS based on a service-oriented architecture and a Robot Operating System that enables real-time parallel processing for multiple robots and sensors by integrating the five types of modules. The editor also supports not only developers but also domain experts in updating workflows frequently. This paper also proposes a novel method to integrate signals acquired through image sensing with knowledge (ontologies and business rules) using C-SPARQL and Semantic Web Rule Language. To evaluate PRINTEPS, we developed a robot teahouse application including customer reception and guidance to table services using a humanoid robot with PRINTEPS. Through this case study, we demonstrated that the behaviors of the robot can be modified by changing the workflow, the ontology, and the rules.  相似文献   
99.
The author explores Hegel's theory of economic nationalism in the Philosophy of Right. In that work, Hegel incorporates economics within a systematic theory of the nation-state. Hegel argues that both capitalism and nationalism are the products of the state, which emancipates human capacities by founding and securing individual rights. Capitalism, however, is an inherently self contradictory social phenomenon to which Hegel responds in a sophisticated manner, one eschewing those economic ideologies which subsequently dominated modern economic thought. Moreover, his response differs fundamentally from other supposed defenders of economic nationalism. Unlike the rationalist Fichte, that other great German defender of a national economics, Hegel paves the way to a scientific understanding of the relationship between the modern economy and the nation-state, in other words, a theory of economic nationalism.  相似文献   
100.
Consider the classical double marginalization problem of single-product successive monopolies. We show that the ratio of the cost pass-through at the final sale relative to that at the wholesale level is characterized by the curvature of inverse demand in the final market. We also apply Cowan’s (2012) method, which utilizes the idea of pass-through in an analysis of third-degree price discrimination, to compare consumer surplus under vertical integration and separation.  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