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11.
Summary The approach of Epps and Pulley (1983) based on the empirical characteristic function is one of the most powerful tools for
detecting any departures from normality. We obtain the first four moments of the limiting null distribution of the Epps-Pulley
Statistic. Johnson- and Pearson curve fitting yields excellent approximations to simulated quantiles, and by modifying the
test statistic the procedure may be carried out easily without the use of extensive tables for all sample sizes.
Research done while the author was on leave at the University of Gie?en. 相似文献
12.
生产率增长测算的半参数估计方法:理论综述和相关探讨 总被引:1,自引:0,他引:1
半参数模型是参数和非参数回归模型的一种概括统一,其中的参数分量部分用于对确定性影响因素进行分析,而非参数分量部分则用于对随机干扰因素的刻画。Olley和Pakes最早给出了关于生产率增长测算的半参数估计方法的研究,Ackerberg和Caves对这一研究进行了修正和补充。但由于理论发展方面还不够成熟,限制了方法的实证应用。半参数方法对经济现实的描述更接近真实,随着半参数估计理论的日渐成熟,半参数估计方法在生产率增长测算领域必将发挥越来越大的作用。 相似文献
13.
Using replication research, the validity of the just-in-time purchasing (JITP) construct is established. Although empirical researchers have examined JITP over the last two decades, a consistent set of valid, reliable factors has not been used. The lack of valid construct is a barrier to hypotheses testing and meta-analyses on JITP. This study confirmed the validity of six JITP factors: top management commitment, employee relations, training, supplier quality management, transportation, and quantities delivered using two different data sets and testing the first- and second-order structure of the JITP construct. Content validity, reliability, unidimensionality, convergent validity, discriminant validity, criterion-related validity, and an invariant factorial structure of the JITP construct were empirically established. 相似文献
14.
15.
Garry Chick 《Leisure Sciences: An Interdisciplinary Journal》2013,35(2):79-91
Cross-cultural comparative research on leisure is extremely rare in both the anthropological and leisure literatures. The opportunities for conducting such research are excellent, however. Ethnographic data archives, such as the Human Relations Area Files, are widely available and contain a trove of information on leisure in societies, both past and present, from around the world. Methods for cross-cultural comparative research have improved greatly in the past two decades. The purpose of this editorial is to urge leisure researchers to make use of both cross-cultural comparative methods and existing sources of data. 相似文献
16.
The tourism industry in China has undergone rapid development since 1978 and is foreseen as being the world's largest tourism market by 2020. However, no comprehensive review of literature in this context has been completed, and international academics have little understanding of China tourism research. This paper aims to provide an overview of 119 articles selected from six leading English language academic journals published from 1978 to 2008. Content analysis points to the evolving trend in Asian universities in terms of journal contributions. Consumer behavior has gained popularity as a research topic, and will likely remain as a prevalent research theme in the near future. A tendency toward multiple-authorship, rather than single authorship, and more sophisticated methodological procedures has also been found. Future analysis may focus on including other forms of publications and Chinese language journals to capture the full picture of China tourism. 相似文献
17.
Understanding the social impacts of tourism on communities is extremely important for government at all levels so that action can be taken to reduce the likelihood of a community backlash against tourists and tourism development. Given that the residents of many tourism destinations are a fundamental part of the tourism ‘product’, resident attitudes and behaviour have a sizable impact on the success or otherwise of a destination. Research on the social impacts of tourism on communities is substantial and ongoing and while advances have been made in the area, the research has not addressed some of the deep seated issues faced by tourist destinations. This paper provides a critique of the social impact of tourism literature, highlighting the inadequacies in the research that has been conducted to date, which then leads to the development of a new conceptual framework. The paper traces the key developments in social impact research and argues that the predominance of quantitative methods potentially limits our ability to gain a more in-depth understanding of the impacts and how they influence both the host community and tourists. The paper finds that the quantitative focus from previous social impact research has led to a narrow understanding of the issues surrounding social impacts and proposes a new research agenda based on ‘layers’ of social impact understanding through the use of ethnography or phenomenology. The paper concludes with recommendations to progress social impact research beyond simply describing the issues towards explanations of why they occur by suggesting that social impact research examine, in greater depth, the values and intrinsic characteristics of the host residents. 相似文献
18.
Neha Sami 《International journal of urban and regional research》2023,47(2):312-317
In this paper I focus on the substantial research funding cuts announced by UK Research and Innovation (UKRI) in March 2021 to examine the process of funding for and participation in global research projects for researchers based in Southern institutions. I focus here on three key aspects of participating in global research projects: first, the structures through which these grants are created—the programmatic frameworks or other imperatives that confine and limit this work to Northern/Western-centric frames; secondly, the precarity of these grants and the work that they generate; and, thirdly, the increasingly output-related and time-bound nature of work in light of limited support. I argue that the effects of these are felt disproportionately by those located in the global South and are therefore worth considering as part of larger debates centred on democratizing and decolonizing knowledge networks. 相似文献
19.
《Telecommunications Policy》2019,43(10):101887
This editorial article introduces the papers presented at the ITS Seoul 2018 and seven papers selected for the special issue of ITS Seoul 2018. Specifically, this article provides the results of keyword networks, research agendas and coauthor networks of ITS Seoul 2018. A summary of the seven papers accepted for the special issue of ITS Seoul 2018 is also included. Finally, this article concludes by introducing another paper that empirically explores the value of special issues by analyzing the characteristics of special issues of Telecommunications Policy. 相似文献
20.
A firm's efforts to build its technological and marketing capabilities are not limited to internal investments but can be extended to include external knowledge acquisitions. We examine the interaction between a firm's specialization in R&D or marketing through its internal investments and its alliances in two different industrial contexts. Our results, based on secondary data sources such as Compustat and SDC Platinum from 1985 to 2009, show that the interaction effects of internal specialization and alliance specialization are contingent on the types of tasks (i.e., R&D and marketing) and the industrial context (i.e., high- and low-tech industries). Our findings indicate that a firm in a high-tech industry is able to achieve greater gains by complementing its internal focus on R&D with its external focus on marketing or by focusing on R&D both internally and externally. In contrast, a firm in a low-tech industry is able to achieve greater performance when R&D and marketing complement each other, without regard for how they are aligned through internal investments and alliances. The firm is also able to improve its performance by focusing on marketing both internally and externally. These findings provide new insights into the complementarity between internal investments and alliances. 相似文献