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31.
We apply the modified rescaled range test to the return series of 1,952 common stocks. The results indicate that long memory is not a widespread characteristic of these stocks. But logit models of the event of a test rejection reveal that rejections are linked to firms with large risk-adjusted average returns. The maximal moment of a return distribution is also found to influence the event of a rejection, but not in a way suggestive of moment-condition failure. Evidence suggestive of survivorship bias is also uncovered. We conclude that there is some evidence consistent with persistent long memory in the returns of a small proportion of stocks. 相似文献
32.
中美邀请言语行为对比研究 总被引:2,自引:0,他引:2
李敬科 《江西金融职工大学学报》2006,(Z1)
邀请言语行为是语言中不可缺少的部分,对于日常交际有着一定的影响;邀请言语行为与民族文化有着密切的联系,体现出不同民族的文化特色,遵循着不同的民族礼貌规范;不了解邀请言语行为的规范及其背后的民族文化,就会导致跨文化交际失误;外语教学中培养学生得体的邀请言语行为能力,可以帮助他们减少语用失误。 相似文献
33.
解释方法论在日本民诉法研究中并不是显著的命题。长期以来,日本民诉法解释并不特别重视法律条文和立法者本意,解释方法论遵循的主要是利益衡量论,近年始有学者对它提出批判。日本民诉法解释方法论选择既源于民事诉讼法的目的被定位于纠纷解决,也与战后比较法研究中利益衡量论的引入有关。日本民诉法利益衡量论有别于民法中的利益衡量论,也有别于受德国法影响的亲实体法解释方法论,这种方法论并不局限于衡量或分配原被告之间的财产或价值,更多地蕴含了对作为制度利用者的当事人的便利、 制度运营者的公共利益、民事诉讼程序的动态发展等要素的考量。 相似文献
34.
某燃气公司一段埋地高压天然气输送管线某处发生严重破损,为分析失效原因,作者采用宏观形貌分析、扫描电镜分析、化学成分分析、显微组织分析、力学性能检验、Fluent模拟分析等系列方法对该失效管段进行分析。结果表明,与该天然气管近距离平行铺设的自来水供水管道破裂,导致高速水流正面与切向冲刷作用,最终导致天然气管破裂。根据分析结论,提出了预防同类事故发生的建议。 相似文献
35.
In this paper we investigate the optimal harvesting of a renewable natural resource. While in most standard approaches the resource is located at a single point, we allow the resource to be distributed spatially. Consequently, an agent who exploits the resource has to travel from one location to another. For a fixed planning horizon, we investigate the speed and the path of harvesting chosen by the agent. We show that the agent adjusts this speed so as to visit each location only once, even in the absence of travelling cost. Since the agent does not return to any location for a second harvest, it is optimal to fully deplete the resource upon arrival. A similar type of bang–bang solution results when we drop the assumption of a constant harvesting rate: allowing for a variable harvesting rate, the agent chooses to fully exploit the resource either in the last or in the first travelling period. A society interested in conserving some of the resource thus has to take measures to limit the exploitative behaviour of the agent. 相似文献
36.
This paper investigates conflicts following a new product development (NPD) failure. Conducted in a Chinese business setting, the study examines whether voice behaviour and learning from failure mediate the relationship between task- and emotional conflict emerging from NPD failure. Our findings indicate that voice behaviour and learning from failure are necessary to effectively reduce task and emotional conflict and thus to enhance future NPD. Specifically, it is revealed that emotional conflict leads to a reduced level; and that voice behaviour and learning from failure are significant mediators that influences the relationships between emotional and task conflicts with it. 相似文献
37.
Gezinus J. Hidding John M. Nicholas 《Journal of Organizational Computing & Electronic Commerce》2017,27(1):81-95
Despite decades of efforts to improve the management of Information Technology (IT) projects, failure rates remain high. This article first reviews literature about information systems success and IT project success. Most of the improvement efforts have focused on advancing variations of the traditional project management paradigm, such as embodied by the Project Management Body of Knowledge. This article describes a new way of thinking about managing IT project called Value-Driven Change Leadership (VDCL), and reports the results of an initial empirical exploration to identify project success factors stemming from VDCL as well as the traditional paradigm. The results are based on data collected from 16 medium-sized IT-intensive projects at eight Chicago-based organizations from six different industries. The results, although not based on a large sample, point to several project management practices associated with project success that stem from both the traditional paradigm as well as VDCL. For example, traditional practices managing stakeholders’ expectations, scope, and schedule are associated with project success, as are practices stemming from VDCL, such as managing the end-product’s architecture, business value added, and the organization change associated with systems implementation. The results of this study also suggest that further research into new ways of thinking about IT project management may be fruitful. 相似文献
38.
酒店服务的异质性和顾客需求的多样性使得服务失误在所难免。服务补救成为酒店修复服务失误,赢得顾客口碑和再次光顾的重要举措。在酒店管理实践中,货币补偿颇受管理者青睐,通常被作为应对服务失误的首要选择。然而,货币补偿是否为服务失误发生时的最优选择?文章以高星级酒店为研究背景,对服务失误进行情境设计,检验不同失误归因下货币补偿和非货币补偿的补偿满意度差异。数据分析结果显示:酒店因素导致的服务失误情境下,相比货币补偿而言,非货币补偿具有更好的补偿效果;其他顾客因素和顾客自身因素导致的服务失误情境下,货币补偿与非货币补偿间没有显著效果差异。此外,补偿满意度对顾客信任、重购意向与口碑有显著正向影响。 相似文献
39.
A service employee’s active listening plays a crucial role in restoring a damaged customer relationship. However, previous studies reveal little about how listening to customer complaints operates in recovering a service failure. The purpose of this research is to explore when and why the employee’s active listening has a positive influence on customer response. We define active listening as (1) listening to customers’ concerns before apologizing and (2) verbally acknowledging them. Using scenario-based experiments, we demonstrate that active listening improves customer satisfaction, which in turn increases tip size (Study 1). Moreover, we find that active listening fosters customers’ perceptions of preferential treatment, which lead to greater customer satisfaction (Study 2). Yet, such positive effects of active listening diminish when customers are unexpectedly offered a complimentary service such as a room upgrade. The implications for academic researchers and marketing managers are discussed. 相似文献
40.
Technology‐push,market‐demand and the missing safety‐pull: a case study of American Airlines Flight 587 下载免费PDF全文
Amy L. Fraher 《New Technology, Work and Employment》2015,30(2):109-127
Through a critical case study of the crash of American Airlines Flight 587, this paper draws upon ‘the Social Shaping of Technology’ (SST) approach to offer a reconceptualisation of the technology‐push and market‐demand model for High‐Reliably Organisations (HROs), providing support for a third factor, called here a ‘safety‐pull’. A safety‐pull is defined as organisationally supported reflexivity in which technology innovators and frontline operators collaborate to consider the potential implications of adopting new technologies in HROs and the complex ways this change may impact human operators' work performance, often in risky and unanticipated ways. In contrast to accidents occurring solely as the result of individual operator error, analysing the safety‐pull provides a way to tease out the wide range of factors that can contribute to HRO failures and offers a new SST perspective through which to examine high‐risk operations. 相似文献