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   33篇
  免费   1篇
财政金融   2篇
工业经济   1篇
计划管理   10篇
经济学   5篇
贸易经济   16篇
  2022年   1篇
  2021年   1篇
  2019年   1篇
  2018年   1篇
  2017年   1篇
  2016年   2篇
  2015年   1篇
  2014年   6篇
  2013年   3篇
  2012年   5篇
  2011年   2篇
  2010年   1篇
  2009年   3篇
  2008年   1篇
  2003年   1篇
  1996年   1篇
  1995年   1篇
  1989年   1篇
  1987年   1篇
排序方式: 共有34条查询结果,搜索用时 0 毫秒
31.
Innovation and imitation effects in Metaverse service adoption   总被引:1,自引:1,他引:0  
This study examines the innovation and imitation effects in Metaverse service adoption. “Metaverse services” is a collective term for services such as Augmented reality, Life logging, Mirror world, and Virtual world. Among them, Twitter, Google, iPhone, and Secondlife (T.G.I.S) are the most popular services/products these days. To measure the adoption of these product/services, the most commonly used are IP traffic and iPhone sales. Thus, in this study, we measured adoption by measuring changes in the IP traffic volume of , , , and sales for iPhone during a 2-year period (from the first quarter of 2008 to the fourth quarter of 2009). To analyze this time series data to reveal the innovation and imitation effect, we employed the Bass model. The results showed that each of these services yields different innovation and imitation coefficient values. Imitation effects for all Metaverse services are greater than innovation effects, and Secondlife’s innovation effects are larger than others. Also, iPhone sales, as a measurement for information and communication technology (ICT) products, showed greater innovation effects than the other services. Implications are drawn to explain these differences, such as, Googlemap’s imitation effects are based on network externalities, while Twitter’s imitation effects are caused by the interactions of individuals; iPhone sales’ innovation effects are explained by the timing of the measurement.  相似文献   
32.
The externalities produced by high-voltage transmission lines are multidimensional, may strongly depend on the local context, and are thus difficult to capture through standard environmental valuation exercises. We experiment a GIS approach to design a geographically stratified contingent valuation sample of the population resident in infrastructure corridors in a whole region. We estimate, by means of a binary choice logit model, the perceived marginal damage from impacts of power lines on human health, the landscape and the environment. Specific treatment is given to qualitatively different forms of impact, namely real estate depreciation versus diffused perception of damage, arising at different distances from the lines. The set of GIS-based variables (proximity to power lines, presence of other infrastructure, endowment of natural and built heritage and other local context variables) prove to be significant predictors in the utility function of resident households. Finally, we compute simulated values that combine information on individual’s willingness to pay, population density and the dimension of the considered corridor around the infrastructure, so as to generalize the outcomes of case-specific studies for use in policy choices such as infrastructure localization, undergrounding and negotiation of compensations.  相似文献   
33.
Many organizations have embarked on Enterprise 2.0. However, not many have successfully implemented it. Availability of inexpensive tools does not guarantee their usage by organizations and their employees. To have Enterprise 2.0 implemented widely and effectively by organizations, it is important that both managers and employees benefit from using it. It is expected that the level of congruence of management–employees perceived benefits would affect the level of adoption of Enterprise 2.0 in organizations. Testing this is the purpose of this research. Using the case study of two large global organizations, this study analyzed the use of Enterprise 2.0 by both employees and managers. The results showed that even though both employees and managers believe that Enterprise 2.0 usage does have a positive impact on communication, collaboration, community building, and employee engagement, the level of belief is different: managers’ perception of Enterprise 2.0 benefits is less than that of employees. There was a greater degree of congruence though between both the groups on the perceived benefits of Enterprise 2.0 on knowledge management and organizational outcomes. The size and the type (not-for-profit) of organization was a disadvantage in adopting such tools. The not-for-profit organization was more at loss when applying Enterprise 2.0 as its employees are less aware of the type of tools and of their benefits, and there is less managerial support.  相似文献   
34.
The paper studies the effect of strengthening protection on R&D incentives in the context of process innovation. It shows that for non‐drastic innovations, that do not render the pre‐existing technology obsolete, the innovator might favor imitation if the expected royalty rate determined by the court is sufficiently high. Since imitation is discouraged for very high levels of patent protection, R&D investment is maximized for an intermediate level of patent strength. This finding provides a theoretical explanation for emerging empirical evidence questioning the effectiveness of strengthening protection on innovation incentives. It also serves as a justification for the imperfections of the existing patent system that allows for some infringement.  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